CN117664517A - Method, device, detection equipment and system for acquiring optical data of display unit - Google Patents
Method, device, detection equipment and system for acquiring optical data of display unit Download PDFInfo
- Publication number
- CN117664517A CN117664517A CN202211048093.6A CN202211048093A CN117664517A CN 117664517 A CN117664517 A CN 117664517A CN 202211048093 A CN202211048093 A CN 202211048093A CN 117664517 A CN117664517 A CN 117664517A
- Authority
- CN
- China
- Prior art keywords
- display unit
- optical data
- calibration sample
- calibration
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 239
- 238000001514 detection method Methods 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000012545 processing Methods 0.000 claims description 19
- 238000004590 computer program Methods 0.000 claims description 18
- 239000011159 matrix material Substances 0.000 description 7
- 230000032683 aging Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000007774 longterm Effects 0.000 description 4
- 238000004020 luminiscence type Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Spectrometry And Color Measurement (AREA)
Abstract
The embodiment of the application is suitable for the technical field of equipment detection, and provides a method, a device, detection equipment and a system for acquiring optical data of a display unit, wherein the method comprises the following steps: obtaining standard optical data corresponding to a calibration sample in a preset environment; aiming at the target display unit, controlling an acquisition device to acquire a calibration sample and the target display unit in a preset environment to obtain an acquisition data set; the data acquisition unit comprises first optical data of a target display unit and second optical data of a calibration sample, wherein the target display unit is any one display unit of a plurality of display units to be tested; and obtaining calibrated first optical data of the display unit according to the standard optical data and the acquired data set, wherein the calibrated first optical data is used for calibrating, detecting or evaluating the target display unit. The first optical data of the target display unit can be accurately acquired by adopting the method.
Description
Technical Field
The application belongs to the technical field of equipment detection, and particularly relates to a method, a device, detection equipment and a system for acquiring optical data of a display unit.
Background
In correcting, detecting or evaluating a display unit, it is often necessary to acquire optical data of the display unit. However, with long-term use of the detection device, the acquisition device in the detection device tends to change, such as luminance attenuation or color temperature shift, and the like, thereby reducing the accuracy of the acquired data.
Disclosure of Invention
The embodiment of the application provides a method, a device, detection equipment and a system for acquiring optical data of a display unit, which can solve the problem that the accuracy of the data acquired by the detection equipment is reduced due to long-term use of the detection equipment.
In a first aspect, an embodiment of the present application provides a method for acquiring optical data of a display unit, where the method includes:
obtaining standard optical data corresponding to a calibration sample in a preset environment;
aiming at the target display unit, controlling an acquisition device to acquire a calibration sample and the target display unit in a preset environment to obtain an acquisition data set; the data acquisition unit comprises first optical data of a target display unit and second optical data of a calibration sample, wherein the target display unit is any one display unit of a plurality of display units to be tested;
And obtaining calibrated first optical data of the display unit according to the standard optical data and the acquired data set, wherein the calibrated first optical data is used for calibrating, detecting or evaluating the target display unit.
In a second aspect, an embodiment of the present application provides an apparatus for acquiring optical data of a display unit, where the apparatus includes:
the acquisition module is used for acquiring standard optical data corresponding to the calibration sample in a preset environment;
the control module is used for controlling the acquisition equipment to acquire the calibration sample and the target display unit in a preset environment aiming at the target display unit to obtain an acquisition data set; the data acquisition unit comprises first optical data of a target display unit and second optical data of a calibration sample, wherein the target display unit is any one display unit of a plurality of display units to be tested;
the calibration module is used for obtaining calibrated first optical data of the display unit according to the standard optical data and the acquired data set, and the calibrated first optical data are used for calibrating, detecting or evaluating the target display unit.
In a third aspect, embodiments of the present application provide a display unit detection apparatus, including a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing a method according to the first aspect as described above when executing the computer program.
In a fourth aspect, embodiments of the present application provide a computer readable storage medium storing a computer program which, when executed by a processor, implements a method as in the first aspect described above.
In a fifth aspect, embodiments of the present application provide a computer program product for causing a display unit detection apparatus to perform the method of the first aspect described above when the computer program product is run on the display unit detection apparatus.
In a sixth aspect, an embodiment of the present application provides an online display unit optical data calibration system, where the system is configured to obtain optical data for each display unit in a plurality of display units according to the method of the first aspect.
In a seventh aspect, embodiments of the present application provide another display unit detection apparatus, including:
the acquisition equipment is used for acquiring optical data of the calibration sample and the target display unit;
the first station is used for placing a calibration sample;
a second station for placing a target display unit;
and the processing device is used for processing the image acquired by the acquisition device so as to execute the method of the first aspect.
Compared with the prior art, the embodiment of the application has the beneficial effects that: when the display unit to be detected is required to be detected, standard optical data corresponding to the calibration sample in a preset environment can be acquired. And then, aiming at any one target display unit of the plurality of display units to be detected, controlling the acquisition equipment to acquire the calibration sample and the target display unit under the same preset environment to obtain first optical data of the target display unit and second optical data of the calibration sample. Therefore, the calibrated first optical data of the display unit can be obtained according to the standard optical data and the acquired data set. At this time, since the target display unit and the calibration sample are collected under the same preset environment in each detection, the change of the first optical data of the target display unit caused by the aging of the collection device or other factors can be calibrated according to the standard optical data corresponding to the calibration sample under the preset environment and the change of the second optical data corresponding to the calibration sample under the preset environment, so as to obtain the first optical data of the target display unit with higher detection precision.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of an implementation of a method for obtaining optical data of a display unit according to an embodiment of the present application;
fig. 2 is a schematic view of an application scene illuminated by a preset light source device according to an embodiment of the present application;
FIG. 3 is a schematic illustration of an application scenario illuminated with a luminescent calibration sample according to an embodiment of the present application;
FIG. 4 is a schematic view of an application scenario illuminated with an illuminable calibration sample and an illuminable target display unit according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of an apparatus for acquiring optical data of a display unit according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a display unit detection apparatus according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
In addition, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
Among many display unit detecting apparatuses for detecting parameters such as the appearance or brightness of a product, a light source apparatus and an acquisition apparatus are generally configured. Wherein, with the long-term use of the display unit detection device, the brightness or color temperature of the light source device in the display unit detection device often changes, such as brightness attenuation or color temperature deviation; and the acquisition device may age due to long-term use or may change each time the acquisition device acquires data under the same test conditions due to surrounding detection environment fluctuations (e.g., temperature changes). Thereby reducing the detection accuracy of the display unit detection device and the accuracy of the collected optical data of the display unit.
Based on the above, in order to improve the detection precision and the detection efficiency of the display unit detection device, the embodiment of the application provides a method for acquiring the optical data of the display unit, which can be applied to the display unit processing device, wherein the display unit processing device is used for detecting, calibrating or evaluating the display unit. The method is used for acquiring the accurate optical data of the display unit.
The display unit processing device may be a display unit detection device, a display unit correction device or a display unit evaluation device, and the device type of the display unit processing device is not specifically limited in this embodiment of the present application. The following description will be made taking a display unit processing device as an example of a display unit detecting device.
The kind of the display unit in the embodiment of the present application is not particularly limited. In some embodiments, the display unit may be one of the following: LCD display element, LED display element, OLED display element. Taking an LED display unit as an example, the LED display unit may be a common LED display unit, or may be microLED, miniLED and future new types of LEDs. Further, in some embodiments, the packaging manner of the display unit may be one of the following packaging manners: for example SMD, COB, COG or a new packaging means in the future.
The size of the display unit is not particularly limited, and may be a screen with a larger size, such as a display screen used in a scene of a mall or a concert. The display unit may be spliced by a plurality of splicing units. The display unit mentioned in the embodiments of the present application may also be a smaller-sized display unit, such as a light box, a light board, or the like.
Referring to fig. 1, fig. 1 shows a flowchart of an implementation of a method for displaying optical data of a unit according to an embodiment of the present application. The detection method may include the steps of:
s101, obtaining standard optical data corresponding to a calibration sample in a preset environment.
In an embodiment, the standard optical data is obtained by using an acquisition device in the display unit detection device to acquire the calibration sample under a preset environment. The standard optical data can be used for calibrating second optical data obtained by collecting the calibration sample in the same preset environment through the collecting device.
It should be understood that the acquisition device in this application may be an acquisition device such as a colorimeter, a luminometer, etc., and may also be a camera, such as an industrial camera, a digital camera, etc.
As an alternative example, the calibration samples in the present application can be used to perform luminance and/or chrominance calibration. The calibration sample may be a white color patch for luminance calibration or the calibration sample may be a colored color patch for chromaticity calibration, for example.
As an alternative example, the standard optical data may be obtained by manufacturing a display unit detection device for a manufacturer, setting a preset environment by the manufacturer, and collecting a calibration sample in a target environment by using a collection device in the display unit detection device. At this time, the standard optical data may be regarded as standard data obtained when the aging of the collecting device in the display unit detecting device does not occur.
It will be appreciated that when shipping the display unit inspection apparatus, the calibration sample may be sold simultaneously with the display unit inspection apparatus, and the standard optical data should also be pre-stored within the display unit inspection apparatus. Therefore, after the display unit detection equipment is sold later, the method for acquiring the optical data of the display unit can be executed according to the standard optical data corresponding to the calibration sample in the preset environment.
As another alternative, the standard optical data may be standard optical data obtained by collecting the calibration sample at least once when the user uses the detection device. For example, the detection device may be used to photograph the calibration sample three times to obtain data of three times, and then the data of one time is selected from the data sets collected three times as the standard optical data of the calibration sample. In the present embodiment, the manner of acquiring the standard optical data is not limited.
In an embodiment, the shape and structure of the calibration sample may be set in advance according to the actual situation, which is not limited. The preset environments to which the calibration samples are applicable may be multiple, and in each preset environment, standard optical data corresponding to the same calibration sample is generally different.
Optionally, the display unit detecting device may include a light source device, and the preset environment may be an illumination environment formed after the display unit detecting device controls the light source device to irradiate the calibration sample with preset brightness or color temperature, which is not limited.
It should be added that the display unit detection device is also typically affected by the temperature and humidity of the environment, and thus the preset environment may typically also include the temperature and humidity of the surrounding environment at this time.
S102, aiming at a target display unit, controlling an acquisition device to acquire a calibration sample and the target display unit in a preset environment to obtain an acquisition data set; the acquisition data set comprises first optical data of a target display unit and second optical data of a calibration sample, wherein the target display unit is any one display unit of a plurality of display units to be tested.
In an embodiment, the display unit to be tested is a display unit requiring calibration, detection or evaluation of the first optical data, and the target display unit is one of a plurality of display units to be tested. Wherein for any one set of acquired data sets it should comprise the first optical data of the target display unit and the second optical data of the calibration sample.
In an embodiment, the display unit to be tested includes, but is not limited to, an LED lamp panel and a liquid crystal display panel. The shape of the display unit to be measured may be rectangular or circular, which may be similar to the shape of the calibration sample, and is not limited thereto.
In an embodiment, the first optical data may be a brightness or a color temperature of the display unit to be measured under a preset environment, or may be a color of the display unit to be measured under the preset environment, which is not limited.
In an embodiment, the collecting device may be an image capturing device, which is used for collecting images of the sample to be measured and the calibration sample. In another possible implementation, the above-mentioned collection device may also be a device for collecting the color, shape or brightness of the sample, such as a color grabber. The embodiment of the application does not limit the type of the acquisition equipment.
When the capturing apparatus is an image capturing apparatus, the second optical data, the first optical data, and the standard optical data captured by the capturing apparatus are typically image data. Therefore, in the subsequent processing, the subsequent processing will also be performed with the image data. For example, the calibration is performed with the pixel values of the respective pixel points in the image data, and the calibration, detection or evaluation is performed on the target display unit.
It should be noted that, because the display unit detecting device may be used for a long time, the acquisition device in the display unit detecting device is aged, so that the first optical data of the target display unit acquired by the acquisition device may be inaccurate, and the display unit detecting device cannot detect the target display unit based on the first optical data.
Based on this, when the target display unit is acquired, the calibration sample should be acquired simultaneously, resulting in the second optical data. It will be appreciated that if the acquisition device transmits aging, the first optical data of the target display unit acquired by the acquisition device may be inaccurate, and the second optical data acquired at this time will also be different from the standard optical data acquired by the display unit detection device later. Accordingly, the display unit detecting apparatus may perform the following step S103 to determine calibration data for calibrating the target display unit.
In an embodiment, the display unit detecting apparatus described in S101 generally includes a light source apparatus, and the preset environment may be an illumination environment formed after the display unit detecting apparatus controls the light source apparatus to irradiate the calibration sample with preset brightness or color temperature.
Specifically, reference may be made to fig. 2, and fig. 2 is a schematic view of an application scene illuminated by a preset light source device according to an embodiment of the present application. As can be seen from fig. 2, the preset light source device may illuminate the target display unit and the calibration sample at the same time, and the collection device may collect the target display unit and the calibration sample at the same time or in a time-sharing manner.
The preset light source device may be various devices that can emit light, for example, a light emitting diode. And, the shape of the preset light source device includes, but is not limited to: the shapes of the point light source, the surface light source and the like can be monochromatic light or polychromatic light, and the embodiment of the application does not limit the type, the shape and the light type of the preset light source equipment. Alternatively, the preset light source may be a standard light source.
In another embodiment, the light source device may be a luminescent calibration sample and/or a luminescent target display unit. The luminous calibration sample and/or the luminous target display unit can emit light to form the preset environment.
That is, the method in the present application can also be applied to an appearance detecting device that detects the appearance of a display unit. The appearance detection device may be a detection device in which display units such as an ink color detection device, a dispensing detection device, a solder paste detection device, etc. are not lighted and need a light source to illuminate. Under the application scene, the attenuation of the light source and the acquisition equipment can be calibrated, and the accuracy of the detection equipment can be improved.
It should be noted that the preset environment is more preferable to the description of the environment in which the calibration sample is located. When standard optical data of a calibration sample are acquired, a display unit is not required to be arranged, and the standard sample is only detected under the same environment.
The calibration sample is a luminous device, and the preset environment further comprises a detection environment in which the calibration sample is lightened and illuminates the display unit to be detected. At this time, the target display unit does not emit light (is not lit), or the luminance value of the emitted light is low. Thus, when the acquisition device performs data acquisition on the calibration sample and the target display unit, the target display unit is mainly illuminated by the illuminable calibration sample. Alternatively, the calibration sample may be a standard light source.
Specifically, referring to fig. 3, fig. 3 is a schematic view of an application scenario illuminated by a calibration sample capable of emitting light according to an embodiment of the present application. The target display unit can emit light weakly or not, but the preset environment is mainly formed by illuminating the target display unit by illumination light emitted by the luminous calibration sample. Further, the calibration sample itself is a sample that has been lit up because it emits light. That is, the target display unit and the calibration sample may be considered to be illuminated simultaneously.
In another embodiment, the light source device may be a calibration sample capable of emitting light and a target display unit capable of emitting light. The luminous calibration sample and the luminous target display unit can emit light to form the preset environment. Specifically, referring to fig. 4, fig. 4 is a schematic view of an application scenario illuminated by a luminescent calibration sample and a luminescent target display unit according to an embodiment of the present application.
It should be added that, for the above-mentioned self-luminescence of the illuminable calibration sample and/or the illuminable target display unit, no additional light source device is used for the preset environment. Therefore, when the luminescent calibration sample and/or the luminescent target display unit are used for self-luminescence, it is necessary to ensure that the self-luminescence luminance of the calibration sample and/or the target display unit can be stabilized for a long period of time.
Based on the above description, the preset environment may further include: when the display unit detection device comprises a preset light source, the preset light source may illuminate only the detection environment formed when the calibration sample is illuminated. At this time, for the target display unit, it may be necessary to be in an environment of low brightness that does not need to be illuminated or illuminated at the time of detection. And for the target display unit which needs to be in the environment with low brightness without being illuminated or illuminated when being detected, the preset environment can further comprise: the detection environment that is illuminated by the self-luminescence of the luminescent calibration sample will not be described in detail.
S103, obtaining calibrated first optical data of the display unit according to the standard optical data and the acquired data set, wherein the calibrated first optical data are used for calibrating, detecting or evaluating the target display unit.
That is, the present application is an online calibration method, where the second optical data of the calibration sample is also collected each time the first optical data of the target display unit is collected. And because the standard optical data of the calibration sample is determined, the calibration data can be obtained by comparing the second optical data of the calibration sample acquired at this time with the standard optical data, and after the calibration data is acted on the first optical data of the target display unit, the attenuation of acquisition equipment and the like caused by environmental factors can be avoided, so that the first optical data of the relatively stable display unit can be obtained.
The method can improve the consistency of the acquisition of the same acquisition equipment on the acquisition in time space.
Wherein the first optical data may be one or more of luminance data, chrominance data, luminous flux.
In one embodiment, it has been described that if the acquisition device transmits aging, the second optical data acquired by the acquisition device will be different from the standard optical data acquired by the display unit detection device in the preset environment. Thus, the display unit detecting device may consider the data change relationship between the second optical data and the standard optical data at this time, and it should be possible to characterize the change relationship between the standard optical data and the calibration data.
Based on the above, the display unit detection device can obtain calibration data corresponding to the collected data set according to the standard optical data and the second optical data; and then, calibrating the first optical data according to the calibration data corresponding to the acquired data set to obtain calibrated first optical data. For example, the ratio of the standard optical data to the second optical data may be determined as the calibration data. And multiplying the calibrated data with the first optical data to obtain the first optical data after calibration.
Illustratively, the calibration data may be:
k tn ＝mark t0 /mark tn
wherein mark is formed of t0 The method comprises the steps of describing corresponding standard optical data of a calibration sample in a preset environment at a time t 0; mark tn Under the time of describing tn, the acquisition equipment is controlled to acquire the calibration sample and the target display unit in a preset environment to obtainTo the second optical data in the acquisition data set. k (k) tn For describing calibration data at tn time instants.
Then, when the first optical data in the acquired data at the tn time is corrected, the correction mode may be:
data_fixed tn ＝k tn *data tn
wherein, data tn For describing first optical data in the acquired data at time tn; data_fixed tn For describing the first optical data after calibration of the first optical data in the acquired data at time tn.
In addition, in other embodiments, when the standard optical data, the first optical data, and the second optical data are not a specific numerical value, the data may be represented in a matrix form. For example, when the three types of data are image data, the image is composed of a plurality of pixels, and thus, the data in each matrix may correspond to one pixel in the representation image.
The second optical data and the standard optical data may be in the form of mark= [ a, B ], for example. At this time, the calibration data thereof may be:
Wherein, mark A t0 The method comprises the steps of describing corresponding standard optical data A of a calibration sample in a preset environment at a time t 0; markB t0 The standard optical data B is used for describing the corresponding standard optical data of the calibration sample in a preset environment at the time t 0; markA tn First optical data a for describing the target display unit at time tn; markB tn For describing the first optical data B of the target display unit at time tn. k (k) tn For describing calibration data at tn time instants.
The above k is tn Or corresponding to a matrix form, namely, in calculating the ratio, dividing only the corresponding standard optical data and the second optical data in the matrix to obtain k in the matrix form tn . Alternatively, the above k tn Or may be a specific value. That is, the standard optical data and the second optical data in the form of a matrix may be calculated by a matrix division algorithm to finally obtain a specific value, which is not limited. When the first optical data of the target display unit at time tn is corrected, the correction method may refer to the above description, and will not be explained.
In addition, when the acquired data set is obtained, the acquisition equipment should be controlled to acquire the calibration sample and the target display unit simultaneously or in a time-sharing manner under a preset environment to obtain the acquired data set.
The device is used for simultaneously shooting the calibration sample and the target display unit. The time sharing is that the calibration sample or the target display unit can be collected first, and then the target display unit or the calibration sample is collected. At this time, in time-sharing collection, the environments of the collected calibration sample and the target display unit should be the same preset environment, and the collection device should also be the same.
In addition, when the standard optical data corresponding to the calibration sample in the preset environment is obtained, the collection equipment should be controlled to collect the calibration sample at least once in the preset environment; and then, obtaining standard optical data corresponding to the calibration sample according to the data of the calibration sample acquired at least once. For example, when a plurality of calibration samples are provided in a preset environment, the plurality of calibration samples may be collected simultaneously or in a time-sharing manner, so as to obtain standard optical data corresponding to each calibration sample. Then, the data of any one standard sample can be determined as standard optical data in the data of the calibration sample acquired at least once.
In an embodiment, the calibrated first optical data is used for calibrating, detecting or evaluating the target display unit. For example, when the difference between the first optical data after calibration and the first optical data before calibration is determined, and when the difference is greater than a preset value, it is determined that the target display unit is not qualified, and calibration is required. Wherein the detecting or evaluating includes, but is not limited to, detecting or evaluating the appearance, chromaticity or brightness of the target display unit, which is not limited thereto.
In this embodiment, when the display unit to be detected needs to be detected, standard optical data corresponding to the calibration sample in the preset environment may be acquired first. And then, aiming at any one target display unit of the plurality of display units to be detected, controlling the acquisition equipment to acquire the calibration sample and the target display unit under the same preset environment to obtain first optical data of the target display unit and second optical data of the calibration sample. Therefore, the calibrated first optical data of the display unit can be obtained according to the standard optical data and the acquired data set. At this time, since the target display unit and the calibration sample are collected under the same preset environment in each detection, the change of the first optical data of the target display unit caused by the aging of the collection device or other factors can be calibrated according to the standard optical data corresponding to the calibration sample under the preset environment and the change of the second optical data corresponding to the calibration sample under the preset environment, so as to obtain the first optical data of the target display unit with higher detection precision.
In another embodiment, in order to be able to further obtain calibration data with high accuracy, the display unit detection device may also set the position when the calibration sample is collected and the position when the calibration sample is collected when the standard optical data, the first optical data, and the second optical data are acquired. Specifically, the setting modes can be as follows:
First case: the display unit detection device may calibrate the position of the sample when the standard optical data is obtained, and may be the same as the position of the calibration sample when the acquisition data set is obtained. It should be noted that, the position of the calibration sample when the standard optical data is obtained is the same as the position of the calibration sample when the acquisition data set is obtained, so that the change of the standard optical data acquired by the acquisition device and the second optical data acquired at the moment caused by the position error can be avoided.
The position of the calibration sample when collected can be preset. However, although the position of the calibration sample when collected may be preset, there may be a variation in the position of the collection device, so that the angle at which the collection device photographs the calibration sample is different from the angle at which the collection device photographs the calibration sample.
Therefore, in order to avoid the change of the collected standard optical data and the second optical data collected at the moment due to the error of the shooting angle when the collection device shoots, the relative positions of the calibration sample and the collection device when the display unit detection device obtains the standard optical data can be the same as the relative positions of the calibration sample and the collection device when the collection data set is obtained. The relative position should also be settable in advance. This is the second case.
Similarly, in order to further improve the accuracy of the finally obtained calibration data, when the standard optical data corresponding to the calibration sample in the preset environment is obtained, the display unit to be measured may be placed near the calibration sample at the same time. Therefore, the test scene of the acquisition data set can be obtained when the acquisition equipment acquires the target display unit and the calibration sample for one time after simulation. At this time, the display unit should record in the detection apparatus: and (3) calibrating the relative positions of the sample and the display unit to be tested when the standard optical data are obtained. Then, when the display unit detection device acquires the first optical data from the target display unit, the relative position between the target display unit and the calibration sample should be set according to the relative positions of the calibration sample and the display unit to be detected when the standard optical data is acquired. This is the third case.
It should be noted that when any one of the above three conditions is satisfied, the collecting device may be controlled to collect the calibration sample and the target display unit in a preset environment, so as to obtain the collected data set. And when the three conditions are satisfied, the acquisition equipment is controlled to acquire the calibration sample and the target display unit under the preset environment to obtain an acquisition data set. At this time, when the above three conditions are satisfied, it is possible to more accurately characterize the change of the acquisition device due to aging based on the calibration data obtained from the standard optical data and the second optical data.
In addition, in the third case, when the standard optical data corresponding to the calibration sample in the preset environment is obtained, the calibration sample and the display unit to be measured may be collected at least once in the preset environment, so as to obtain the standard optical data including the calibration sample and the first optical data of the display unit to be measured. Therefore, the acquired standard optical data can also contain the influence of the display unit to be tested on the calibration sample by at least one acquisition mode.
It should be added that the number of calibration samples may be plural, for example, two. At this time, when the standard optical data corresponding to the calibration samples in the preset environment is obtained, the standard optical data corresponding to the two calibration samples respectively should be obtained by one time acquisition, or the standard optical data corresponding to the two calibration samples respectively should be obtained by time-sharing two times acquisition, which is not limited.
In addition, if the number of the calibration samples is two, and when the shape of the target display unit is a symmetrical structure, for example, when the shape of the target display unit is rectangular, the relative positions of the calibration samples and the display unit to be measured when the standard optical data is obtained may be that the two calibration samples are respectively disposed on two sides of the long side of the display unit to be measured. Of course, in other examples, two calibration samples may be disposed on two sides of the short side of the display unit to be tested, which is not limited thereto. Furthermore, the two calibration samples may be symmetrically disposed on two sides of the long side or two sides of the short side of the display unit to be tested, which is not limited.
It should be added that, when standard optical data is acquired, if the number of used calibration samples is two and is located at two sides of the long side of the rectangular to-be-measured display unit, when the acquired data set is acquired, the number of used calibration samples should also be two and is located at two sides of the long side of the rectangular to-be-measured display unit.
In another embodiment, the number of calibration samples has been described above as being plural, however, different types of detection of the target display unit may be applicable among the plural calibration samples. For example, when detecting the appearance of the target display unit, the applicable calibration sample may be a calibration sample similar to the appearance of the target display unit. And when the chromaticity of the target display unit is detected, the used calibration sample can be calibration samples with various different chromaticities.
Based on this, in order to be able to calibrate the first optical data of the target display unit further on the basis of the standard optical data and the second optical data of the calibration sample, the calibration sample used also needs to be determined by further selection.
Specifically, the display unit detection device may acquire a target data category of the first optical data required to be acquired by the target display unit; then, determining a calibration sample corresponding to the target data category from a plurality of calibration samples according to a preset association table; the correlation table stores data categories corresponding to each calibration sample.
Specifically, the display unit detection device may acquire in advance a target data category of the first optical data required to be acquired by the target display unit; and then, according to a preset association table, selecting a calibration sample corresponding to the target data category from a plurality of calibration samples. The correlation table should record the data category corresponding to each calibration sample. And, the target data category of the first optical data required to be collected for each target display unit should be determined in advance in the display unit detecting device by a detecting person when the target display unit needs to be detected.
It should be noted that when the number of the calibration samples is plural, the corresponding second optical data will also be plural, and at this time, the display unit detecting device may also reasonably select the second optical data corresponding to the calibration samples and the standard optical data to calculate the corresponding calibration data according to the above manner, so as to improve the accuracy of the calculated calibration data.
Referring to fig. 5, fig. 5 is a block diagram of a display unit optical data acquisition device according to an embodiment of the present application. The optical data acquisition device of the display unit in this embodiment includes modules for executing the steps in the embodiment corresponding to fig. 1. Refer specifically to fig. 1 and the related description in the embodiment corresponding to fig. 1. For convenience of explanation, only the portions related to the present embodiment are shown. Referring to fig. 5, the display unit optical data acquisition apparatus 500 may include: an acquisition module 510, a control module 520, and a calibration module 530, wherein:
The acquisition module 510 is configured to acquire standard optical data corresponding to the calibration sample in a preset environment.
The control module 520 is configured to control the acquisition device to acquire the calibration sample and the target display unit in a preset environment for the target display unit, so as to obtain an acquisition data set; the acquisition data set comprises first optical data of a target display unit and second optical data of a calibration sample, wherein the target display unit is any one display unit of a plurality of display units to be tested.
The calibration module 530 is configured to obtain, according to the standard optical data and the collected data set, calibrated first optical data of the display unit, where the calibrated first optical data is used for calibrating, detecting or evaluating the target display unit.
In one embodiment, the position of the calibration sample when the standard optical data is obtained is the same as the position of the calibration sample when the acquisition data set is obtained; and/or the relative positions of the calibration sample and the acquisition equipment when the standard optical data are obtained are the same as the relative positions of the calibration sample and the acquisition equipment when the acquisition data set is obtained; and/or the relative positions of the calibration sample and the display unit to be tested when the standard optical data are obtained are the same as the relative positions of the calibration sample and the target display unit when the acquired data set are obtained.
In an embodiment, the device 500 for obtaining optical data of a display unit may be applied to a display unit processing device, where the display unit processing device includes a preset light source, and the preset environment further includes a detection environment in which the preset light source illuminates a calibration sample; or the display unit processing equipment comprises a preset light source, and the preset environment also comprises an environment for illuminating the calibration sample and the display unit to be detected by the preset light source; or the calibration sample is luminous equipment, and the preset environment also comprises a detection environment in which the calibration sample is lightened; or the calibration sample is luminous equipment, and the preset environment further comprises a detection environment in which the calibration sample is lightened and the display unit to be detected is illuminated; alternatively, the target display unit and the calibration sample are both illuminable devices; the preset environment further comprises a detection environment in which both the calibration sample and the target display unit are lighted.
In one embodiment, the control module 520 is further configured to:
and controlling the acquisition equipment to acquire the calibration sample and the target display unit in a preset environment at the same time or in a time-sharing mode to obtain an acquisition data set.
The acquisition module 510 is further configured to:
controlling the acquisition equipment to acquire the calibration sample at least once under a preset environment; and obtaining standard optical data corresponding to the calibration sample according to the data of the calibration sample acquired at least once.
In one embodiment, the number of calibration samples is two, and the shape of the target display unit is rectangular; the two calibration samples are respectively positioned at two sides of the long side of the target display unit.
In one embodiment, the calibration module 530 is further configured to:
obtaining calibration data corresponding to the acquired data set according to the standard optical data and the second optical data; and calibrating the first optical data according to the calibration data corresponding to the acquired data set to obtain calibrated first optical data.
In one embodiment, the calibration module 530 is further configured to:
determining a ratio of the standard optical data to the second optical data as calibration data; and multiplying the calibration data with the first optical data to obtain the calibrated first optical data.
In an embodiment, the display unit optical data acquisition apparatus 500 further includes:
acquiring a target data category of first optical data required to be acquired by a target display unit; determining a calibration sample corresponding to the target data category from a plurality of calibration samples according to a preset association table; the correlation table stores data categories corresponding to each calibration sample.
It is to be understood that, in the block diagram of the detection apparatus for a sample to be detected shown in fig. 5, each module is configured to execute each step in the embodiment corresponding to fig. 1, and each step in the embodiment corresponding to fig. 1 has been explained in detail in the foregoing embodiment, and reference is specifically made to fig. 1 and related descriptions in the embodiment corresponding to fig. 1, which are not repeated herein.
Fig. 6 is a block diagram of a display unit detection apparatus according to an embodiment of the present application. As shown in fig. 6, the display unit detecting apparatus 600 of this embodiment includes: a processor 610, a memory 620 and a computer program 630 stored in the memory 620 and executable on the processor 610, for example a program for a method of acquiring optical data of a display unit. The steps in the embodiments of the method for acquiring optical data of each display unit described above, such as S101 to S103 shown in fig. 1, are implemented when the processor 610 executes the computer program 630. Alternatively, the processor 610 may implement the functions of the modules in the embodiment corresponding to fig. 5, for example, the functions of the modules 510 to 530 shown in fig. 5, when executing the computer program 630, and refer to the related descriptions in the embodiment corresponding to fig. 5.
For example, the computer program 630 may be partitioned into one or more modules, and the one or more modules are stored in the memory 620 and executed by the processor 610 to implement the methods for detecting a sample to be tested provided in the embodiments of the present application. One or more of the modules may be a series of computer program instruction segments capable of performing particular functions for describing the execution of the computer program 630 in the display unit detection apparatus 600. For example, the computer program 630 may implement the method for acquiring optical data of a display unit provided in the embodiment of the present application.
The display unit detection apparatus 600 may include, but is not limited to, a processor 610, a memory 620. It will be appreciated by those skilled in the art that fig. 6 is merely an example of a display unit detection apparatus 600 and is not meant to be limiting of the display unit detection apparatus 600, and may include more or less components than illustrated, or may combine certain components, or different components, e.g., the detection apparatus may also include input and output devices, network access devices, buses, etc.
The processor 610 may be a central processing unit, but may also be other general purpose processors, digital signal processors, application specific integrated circuits, off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 620 may be an internal storage unit of the display unit detecting apparatus 600, for example, a hard disk or a memory of the display unit detecting apparatus 600. The memory 620 may also be an external storage device of the detection device 600, such as a plug-in hard disk, a smart memory card, a flash memory card, etc. provided on the display unit detection device 600. Further, the memory 620 may also include both an internal storage unit and an external storage device of the display unit detecting device 600.
The embodiments of the present application provide a computer readable storage medium including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the method for acquiring optical data of a display unit in the foregoing embodiments when executing the computer program.
Embodiments of the present application provide a computer program product for causing a detection device to execute the method for acquiring optical data of a display unit in the above embodiments when the computer program product is run on the detection device.
The embodiment of the application also provides an online display unit optical data calibration system, which is used for executing the display unit optical data acquisition method in each embodiment above for each display unit in a plurality of display units so as to acquire optical data.
The embodiment of the application also provides another display unit detection device, which comprises: the acquisition equipment is used for acquiring optical data of the calibration sample and the target display unit; the first station is used for placing a calibration sample; a second station for placing a target display unit; and the processing device is used for processing the image acquired by the acquisition device so as to execute the acquisition method of the optical data of the display unit in each embodiment. The light source is positioned above the first station and the second station and used for illuminating the calibration sample and the target display unit.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (13)
1. A method for acquiring optical data of a display unit, the method comprising:
obtaining standard optical data corresponding to a calibration sample in a preset environment;
aiming at a target display unit, controlling an acquisition device to acquire the calibration sample and the target display unit in the preset environment to obtain an acquisition data set; the acquisition data set comprises first optical data of the target display unit and second optical data of the calibration sample, wherein the target display unit is any one display unit of a plurality of display units to be tested;
and obtaining calibrated first optical data of the display unit according to the standard optical data and the acquired data set, wherein the calibrated first optical data is used for calibrating, detecting or evaluating the target display unit.
2. The method of claim 1, wherein the position of the calibration sample at the time of obtaining the standard optical data is the same as the position of the calibration sample at the time of obtaining the collection data set; and/or the relative positions of the calibration sample and the acquisition equipment when the standard optical data are obtained are the same as the relative positions of the calibration sample and the acquisition equipment when the acquisition data set is obtained; and/or the relative positions of the calibration sample and the display unit to be tested when the standard optical data are obtained are the same as the relative positions of the calibration sample and the target display unit when the acquired data set is obtained.
3. The method of claim 1, applied to a display unit processing device comprising a preset light source, the preset environment further comprising a detection environment in which the preset light source illuminates the calibration sample; or,
the display unit processing equipment comprises a preset light source, and the preset environment further comprises an environment in which the preset light source illuminates the calibration sample and the display unit to be detected; or,
the calibration sample is a luminous device, and the preset environment further comprises a detection environment in which the calibration sample is lightened; or,
The calibration sample is a luminous device, and the preset environment further comprises a detection environment in which the calibration sample is lightened and a display unit to be detected is illuminated; or,
the target display unit and the calibration sample are luminous devices; the preset environment further comprises a detection environment in which the calibration sample and the target display unit are both lightened.
4. A method according to any one of claims 1-3, wherein the controlling the acquisition device to acquire the calibration sample and the target display unit under the preset environment to obtain an acquisition data set comprises:
controlling the acquisition equipment to acquire the calibration sample and the target display unit in the preset environment at the same time or in a time-sharing mode to obtain the acquisition data set;
the obtaining standard optical data corresponding to the calibration sample in the preset environment comprises the following steps:
controlling the acquisition equipment to acquire the calibration sample at least once under the preset environment;
and obtaining standard optical data corresponding to the calibration sample according to the data of the calibration sample acquired at least once.
5. A method according to any one of claims 1-3, wherein the number of calibration samples is two and the target display unit is rectangular in shape; the two calibration samples are respectively positioned at two sides of the long side of the target display unit.
6. A method according to any one of claims 1-3, wherein said deriving calibrated first optical data of said display unit from said standard optical data and said acquired data set comprises:
obtaining calibration data corresponding to the acquired data set according to the standard optical data and the second optical data;
and calibrating the first optical data according to the calibration data corresponding to the acquired data set to obtain the calibrated first optical data.
7. A method according to any one of claims 1-3, wherein said deriving calibrated first optical data of said display unit from said standard optical data and said acquired data set comprises:
determining a ratio of the standard optical data to the second optical data as calibration data;
multiplying the calibration data with the first optical data to obtain the calibrated first optical data.
8. A method according to any one of claims 1-3, characterized in that before the control acquisition device acquires the calibration sample and the target display unit in the preset environment, it further comprises:
Acquiring a target data category of first optical data required to be acquired by the target display unit;
determining a calibration sample corresponding to the target data category from a plurality of calibration samples according to a preset association table; and the correlation table stores data categories corresponding to the calibration samples respectively.
9. An apparatus for acquiring optical data of a display unit, the apparatus comprising:
the acquisition module is used for acquiring standard optical data corresponding to the calibration sample in a preset environment;
the control module is used for controlling the acquisition equipment to acquire the calibration sample and the target display unit in the preset environment aiming at the target display unit to obtain an acquisition data set; the acquisition data set comprises first optical data of the target display unit and second optical data of the calibration sample, wherein the target display unit is any one display unit of a plurality of display units to be tested;
and the calibration module is used for obtaining calibrated first optical data of the display unit according to the standard optical data and the acquired data set, and the calibrated first optical data is used for calibrating, detecting or evaluating the target display unit.
10. A display unit detection apparatus comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 8 when executing the computer program.
11. An on-line display unit optical data calibration system, characterized in that the system is adapted to perform optical data acquisition according to the method of any one of claims 1-8 for each of a plurality of display units.
12. A display unit detecting apparatus, characterized by comprising:
the acquisition equipment is used for acquiring optical data of the calibration sample and the target display unit;
the first station is used for placing the calibration sample;
a second station for placing the target display unit;
processing means for processing the image acquired by the acquisition means to perform the method according to any of claims 1-8.
13. The detection apparatus according to claim 12, characterized by further comprising:
and the light source is positioned above the first station and the second station and used for illuminating the calibration sample and the target display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211048093.6A CN117664517A (en) | 2022-08-30 | 2022-08-30 | Method, device, detection equipment and system for acquiring optical data of display unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211048093.6A CN117664517A (en) | 2022-08-30 | 2022-08-30 | Method, device, detection equipment and system for acquiring optical data of display unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117664517A true CN117664517A (en) | 2024-03-08 |
Family
ID=90064858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211048093.6A Pending CN117664517A (en) | 2022-08-30 | 2022-08-30 | Method, device, detection equipment and system for acquiring optical data of display unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117664517A (en) |
-
2022
- 2022-08-30 CN CN202211048093.6A patent/CN117664517A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108775958B (en) | Brightness measuring and calibrating method and device based on light sensor and electronic equipment | |
| US11410412B2 (en) | Anti-counterfeiting method and system for under-screen fingerprint identification | |
| CN105551431B (en) | LED display module uniformity correcting method | |
| US20140117993A1 (en) | Test method and test apparatus for transparent display device | |
| CN103575670A (en) | Optical detection system | |
| CN113514480A (en) | LED chip detection method, device and system and terminal equipment | |
| JP5901390B2 (en) | Light emitting device and calibration method thereof | |
| TWI807414B (en) | Inspection device, inspection method, and storage medium | |
| US10554941B2 (en) | Projector device and method for correcting color in projector device | |
| JP7236612B2 (en) | Inspection method, program and inspection system | |
| CN117664517A (en) | Method, device, detection equipment and system for acquiring optical data of display unit | |
| CN113611242B (en) | LED screen correction coefficient generation method, LED screen correction coefficient adjustment method and LED screen correction system | |
| JP2017106782A (en) | Automatic reading apparatus for measuring instrument and program | |
| KR102199037B1 (en) | LED Signboard That Can Use LED Individual Correction Data Simultaneously With Measurement | |
| JP6461692B2 (en) | Board inspection equipment | |
| CN109975299B (en) | Light source detection system and method | |
| CN112945867B (en) | Reflective gray-scale test card measuring system and method | |
| US20230063898A1 (en) | Method for testing electronic products, electronic device, and storage medium | |
| JP2007279213A (en) | Luminance inspecting device for display panel, and display panel manufacturing method using the same | |
| TWI408698B (en) | Two dimensional colorimeter calibration apparatus | |
| KR20160080730A (en) | Led illumination calibration apparatus and control method thereof | |
| WO2013038560A1 (en) | Display device and method for correcting variations in display device | |
| KR200386330Y1 (en) | System for testing a electronic scales using vision system | |
| JP2013190363A (en) | Thickness measuring device, thickness measuring system, and thickness measuring method | |
| CN115588393B (en) | Test method and debugging method of silicon-based display screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |