CN111736376A - Detection device, detection method, and computer-readable storage medium - Google Patents

Abstract

The invention discloses a detection device, a detection method and a computer-readable storage medium. The detection device includes a light source component, a polarizer, a beam splitting prism, a calibration component and a detection unit, the calibration component includes a phase retarder and a reflection mirror, The phase retarder is arranged on the side of the reflecting mirror close to the beam splitting prism; the light emitted by the light source component is reflected to the calibration component through the polarizer and the beam splitting prism in turn, and the light The polarization direction is changed by the phase retarder, and after being reflected by the mirror, it enters the dichroic prism, and is transmitted to the detection unit after being transmitted through the dichroic prism. The present invention provides a detection device, a detection method and a computer-readable storage medium, aiming at solving the problems of complex structure of the test device and cumbersome measurement process in the prior art when testing a display assembly.

Description

Detection device, detection method, and computer-readable storage medium

technical field

The present invention relates to the technical field of optical detection, and in particular, to a detection device, a detection method and a computer-readable storage medium.

Background technique

The display assembly is one of the important parts in the projection equipment, and the imaging chip is an important part of the display assembly. The quality of the imaging chip directly affects the imaging quality of the display assembly. The existing imaging chips include liquid crystal attached silicon ( Liquid Crystal on Silicon (LCOS), Organic Light-Emitting Diode (OLED), Liquid Crystal Display (LCD), Digital Light Procession (DLP) and other types, among which LCOS chips have high The advantages of resolution, high light efficiency and low cost.

When the projection equipment completes the assembly of the display components, it is necessary to test the imaging performance of the imaging chip of the projection equipment. Due to the complex internal structure of the projection equipment of the LCOS chip, when testing the imaging chip, various accessories and corresponding optical paths are required. , thereby causing the problems of complex structure of the detection device and cumbersome detection process.

The above content is only used to assist the understanding of the technical solutions of the present invention, and does not mean that the above content is the prior art.

SUMMARY OF THE INVENTION

The present invention provides a detection device, a detection method and a computer-readable storage medium, aiming at solving the problems of complex structure of the test device and cumbersome measurement process in the prior art when testing a display assembly.

In order to achieve the above object, the present invention proposes a detection device, the detection device includes a light source component, a polarizer, a beam splitting prism, a calibration component and a detection unit, the calibration component includes a phase retarder and a mirror, and the phase The retarder is arranged on the side of the reflecting mirror close to the beam splitting prism; the light emitted by the light source assembly is sequentially reflected to the calibration assembly through the polarizer and the beam splitting prism, and the light passes through the The phase retarder changes the polarization direction, enters the beam splitter prism after being reflected by the mirror, and transmits to the detection unit after being transmitted through the beam splitter prism.

Optionally, the detection device further includes a light homogenizing element, and the light homogenizing element is arranged between the light source assembly and the polarizer.

Optionally, the detection device further includes an analyzer, and the analyzer is arranged between the polarizer and the beam splitting prism.

Optionally, the detection device further includes a neutral filter, and the neutral filter is arranged between the spectroscopic prism and the detection unit.

Optionally, the light source assembly includes a first light source, a second light source, a third light source, a first dichroic mirror and a second dichroic mirror, and the light emitted by the first light source passes through the first and second light sources in sequence. After the dichroic mirror and the second dichroic mirror are transmitted to the polarizer, the light emitted by the second light source is reflected by the first dichroic mirror and passes through the second dichroic mirror After transmission, the light is transmitted to the polarizer, and the light emitted by the third light source is reflected by the second dichroic mirror and then transmitted to the polarizer.

Optionally, the light source assembly further includes a first collimating lens group, a second collimating lens group and a third collimating lens group, and the first collimating lens group is arranged on the first light source and the first collimating lens group. Between a dichroic mirror, the second collimating mirror group is arranged between the second light source and the first dichroic mirror, and the third collimating mirror group is arranged between the third light source and the second dichroic mirror.

Optionally, the detection device further includes a compensation sheet, the compensation sheet is arranged between the beam splitter prism and the calibration component, and the fast axis direction of the compensation sheet is related to the polarization of the transmitted polarized light of the beam splitter prism. Orientation is the same or vertical.

In order to achieve the above object, the present application proposes a detection method, which is applied to the detection device according to any one of the above embodiments, and the detection method includes:

acquiring first brightness information detected by the detection unit when the calibration component is located at the detection position;

acquiring second brightness information detected by the detection unit when the display component to be tested is located at the detection position;

According to the first brightness information and the second brightness information, a display parameter of the display component is determined, and the display parameter includes at least one of reflectance, contrast, color temperature, color difference, color uniformity, and brightness uniformity.

Optionally, the display parameter is brightness uniformity, the detection area of the detection unit includes a center area and at least one edge area, and the first brightness information includes first sub-brightness information of the center area and second brightness information of at least one edge area. Sub-brightness information, the second brightness information includes third sub-brightness information of the central area and fourth sub-brightness information of at least one edge area, the display is determined according to the first brightness information and the second brightness information The steps to display parameters of a component include:

determining a first ratio of the second sub-brightness information to the first sub-brightness information;

obtaining a second ratio between the fourth sub-brightness information and the first ratio;

A third ratio between the second ratio and the third sub-brightness information is acquired, where the third ratio is the brightness uniformity of the display component to be tested.

To achieve the above purpose, the present application proposes a computer-readable storage medium, where a detection program is stored on the computer-readable storage medium, and when the detection program is executed by a processor, the detection as described in any of the foregoing embodiments is implemented. steps of the method.

In the technical solution proposed in this application, the detection device includes a light source component, a polarizer, a beam splitting prism, a calibration component, and a detection unit, the calibration component includes a phase retarder and a reflection mirror, and the phase retarder is located in the The reflecting mirror is close to the side of the beam splitting prism; when the display assembly to be tested is tested by the detection device, the light emitted by the light source assembly is converted into the first linearly polarized light after passing through the polarizer, so When the first linearly polarized light is transmitted to the dichroic prism, it is reflected by the dichroic prism, and when the first linearly polarized light is transmitted to the calibration component, because the calibration component includes a phase retarder and the a reflector, the first linearly polarized light is converted into a first circularly polarized light after passing through the phase retarder, the first circularly polarized light is converted into a second circularly polarized light after being reflected by the reflector, and the first circularly polarized light is converted into a second circularly polarized light after being reflected by the reflector The rotation of the second circularly polarized light is opposite to that of the first circularly polarized light. The second circularly polarized light is converted into a second linearly polarized light after passing through the phase retarder again. The polarization of the second linearly polarized light is The direction is perpendicular to the polarization direction of the first linearly polarized light, so as to ensure that the second linearly polarized light, after being transmitted to the dichroic prism, is transmitted through the dichroic prism and transmitted to the detection unit. After the calibration component is used to complete the detection, the calibration component is replaced with the display component to be tested, the second brightness information of the display component to be tested is measured, and according to the first brightness information and the second brightness information, The display parameters of the display component to be tested are determined, thereby solving the problems in the prior art that when testing the display component, the structure of the testing device is complex and the measurement process is cumbersome.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained according to the structures shown in these drawings without creative efforts.

Fig. 1 is the structural representation of the detection device of the present invention;

2 is a schematic diagram of a terminal structure of a hardware operating environment involved in an embodiment of the present invention;

3 is a schematic flowchart of an embodiment of the detection method of the present invention;

FIG. 4 is a schematic flowchart of another embodiment of the detection method of the present invention.

Description of reference numbers:

label name label name 10 Light source components 30 Relay lens group 11 first light source 40 polarizer 12 The first collimating lens group 50 Analyzer 13 second light source 60 Beam splitting prism 14 The second collimating lens group 70 Compensation sheet 15 third light source 80 Calibration Components 16 The third collimating lens group 81 Phase retarder 17 first dichroic mirror 82 Reflector 18 second dichroic mirror 90 Neutral filter 20 dodging element 100 detection unit

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relationship between various components under a certain posture (as shown in the accompanying drawings). The relative positional relationship, the movement situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In addition, descriptions such as "first", "second", etc. in the present invention are only for descriptive purposes, and should not be construed as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "connected", "fixed" and the like should be understood in a broad sense, for example, "fixed" may be a fixed connection, a detachable connection, or an integrated; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal communication between two elements or an interaction relationship between the two elements, unless otherwise explicitly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

The present application provides a detection device, a detection method, and a computer-readable storage medium.

Referring to FIG. 1 , the detection device includes a light source assembly 10 , a polarizer 40 , a beam splitting prism 60 , a calibration assembly 80 and a detection unit 100 . The calibration assembly 80 includes a phase retarder 81 and a mirror 82 , the phase retardation The reflector 81 is arranged on the side of the reflector 82 close to the beam splitter prism 60; the light emitted by the light source assembly 10 is sequentially reflected to the calibration assembly 80 through the polarizer 40 and the beam splitter prism 60, The light changes its polarization direction through the phase retarder 81 , is reflected by the reflector 82 , enters the beam splitting prism 60 , and is transmitted through the beam splitting prism 60 before being transmitted to the detection unit 100 .

In the technical solution proposed in this application, the detection device includes a light source assembly 10, a polarizer 40, a beam splitting prism 60, a calibration assembly 80 and a detection unit 100, and the calibration assembly 80 includes a phase retarder 81 and a mirror 82, The phase retarder 81 is arranged on the side of the reflector 82 close to the beam splitting prism 60; when the display assembly to be tested is tested by the detection device, the light emitted by the light source assembly 10 passes through the detector. The polarizer 40 is then converted into a first linearly polarized light. When the first linearly polarized light is transmitted to the beam splitting prism 60, it is reflected by the beam splitting prism 60, and the first linearly polarized light is transmitted to the calibration prism 60. When the assembly 80 is used, since the calibration assembly 80 includes a phase retarder 81 and the reflecting mirror 82, the first linearly polarized light is converted into a first circularly polarized light after passing through the phase retarder 81, and the first circularly polarized light is The polarized light is converted into a second circularly polarized light after being reflected by the mirror 82. The rotation of the second circularly polarized light is opposite to that of the first circularly polarized light, and the second circularly polarized light passes through again. After the phase retarder 81 is converted into a second linearly polarized light, the polarization direction of the second linearly polarized light is perpendicular to the polarization direction of the first linearly polarized light, so as to ensure that the second linearly polarized light is transmitted to the After the beam splitting prism 60 is transmitted, the beam is transmitted through the beam splitting prism 60 and transmitted to the detection unit 100 . After the calibration component 80 is used to complete the detection, the calibration component 80 is replaced with the display component to be tested, the second brightness information of the display component to be tested is measured, and the second brightness information is measured according to the first brightness information and the second brightness. information, and the display parameters of the display component to be tested are determined, thereby solving the problems of complex structure of the testing device and cumbersome measurement process when testing the display component in the prior art.

In an optional embodiment, the detection device further includes a light homogenizing element 20 . The homogenizing element 20 is disposed between the light source assembly 10 and the polarizer 40 . Specifically, in order to ensure that the light emitted by the light source assembly 10 can be uniformly transmitted to the dichroic prism 60, and to avoid the uneven light intensity of the light in different regions, which may cause the detection unit 100 to collect the light, the error problem occurs when the light is collected. The light-distributing element 20 is provided in the light-emitting detector of the light source assembly 10, and the light-distributing element 20 is used to evenly light the light emitted by the optical assembly, so as to ensure that the light emitted after passing through the light-distributing element 20 is different in different directions. The brightness of the different regions is the same, which reduces the problem of errors in the testing of the detection unit 100 caused by the different brightness of the light in different regions. In a preferred embodiment, the homogenizing element 20 may be frosted glass, a homogenizing plate, a homogenizing rod, or other optical elements capable of homogenizing light.

In an optional embodiment, the detection device further includes a relay lens group 30 , and the relay lens group 30 is provided between the light source assembly 10 and the polarizer 40 . Specifically, after the light emitted from the light source assembly 10 is homogenized, in order to improve the transmission efficiency of the light, the transmission loss of the light in the detection device is reduced and the spot size of the detection device is adjusted.

In an optional embodiment, the detection device further includes an analyzer 50 , and the analyzer 50 is provided between the polarizer 40 and the beam splitter prism 60 . Specifically, after the light emitted by the light source assembly 10 passes through the polarizer 40, there may be stray light in a direction different from that of the polarizer 40. In order to improve the polarization purity of the light, the polarizer 40 and the polarizer An analyzer 50 is arranged between the beam splitting prisms 60 , and the analyzer 50 is used to adjust the polarization direction of the polarized light to ensure that the light incident on the polarized beam splitting prism 60 is light in the S polarization state.

In an optional implementation method, the detection device further includes a neutral filter 90 , and the neutral filter 90 is provided between the beam splitter prism 60 and the detection unit 100 . When the display assembly to be tested is tested, in order to ensure that the ratio of the aberration between the test of the calibration assembly 80 and the test of the display assembly to be tested is relatively large, and to improve the measurement accuracy of the display assembly to be tested, The neutral filter 90 is arranged in the detection device to reduce the brightness of the light in the detection device. When the light source assembly 10 emits light, a flicker problem will occur, thereby affecting the detection unit 100's ability to For the collection of the light, when the neutral filter 90 is arranged in the direction of the light emitting surface of the light component, the neutral filter 90 can reduce the flicker of the light source component 10, thereby reducing the The measurement error of the detection unit 100 is detected.

In an optional embodiment, the light source assembly 10 includes a first light source 11 , a second light source 13 , a third light source 15 , a first dichroic mirror 17 and a second dichroic mirror 18 . The first light source 11 The emitted light passes through the first dichroic mirror 17 and the second dichroic mirror 18 and then is transmitted to the polarizer 40, and the light emitted by the second light source 13 passes through the first dichroic mirror It is reflected by the mirror 17 and transmitted to the polarizer 40 after being transmitted through the second dichroic mirror 18 . The light emitted by the third light source 15 is reflected by the second dichroic mirror 18 and transmitted to the polarizer 40 . The polarizer 40 is described. Specifically, the first light source 11 is a green light source, the second light source 13 is a red light source, and the third light source 15 is a blue light source. The first dichroic mirror 17 can transmit the green light and reflect the red light, and the second dichroic mirror 18 can transmit green and red light and reflect blue light.

In a preferred embodiment, the first dichroic mirror 17 is parallel to the second dichroic mirror 18 , and the light emitted by the second light source 13 is at the incident angle of the first dichroic mirror 17 is 45°, and the incident angle of the light emitted by the third light source 15 on the second dichroic mirror 18 is 45%. The light emitted by the first light source 11 , the second light source 13 and the third light source 15 forms polychromatic light after passing through the light of the second dichroic mirror 18 and is transmitted to the detection device in subsequent optics.

In a preferred embodiment, the light source assembly 10 further includes a first collimating lens group 12 , a second collimating lens group 14 and a third collimating lens group 16 , and the first collimating lens group 12 is disposed in the first collimating lens group 12 Between a light source 11 and the first dichroic mirror 17, the second collimating lens group 14 is arranged between the second light source 13 and the first dichroic mirror 17, the third The collimating lens group 16 is disposed between the third light source 15 and the second dichroic mirror 18 . Specifically, the light emitted by the first light source 11 is converted into parallel light after passing through the first collimating lens group 12 , and the light emitted by the second light source 13 is converted into parallel light after passing through the second collimating lens group 14 . Converted into parallel light, the light emitted by the third light source 15 is converted into parallel light after passing through the third collimating lens group 16 . Through the three collimating lens groups, the light emitted by the first light source 11 , the second light source 13 and the third light source 15 in the light source assembly 10 can be transmitted or reflected in parallel through the A dichroic mirror, thereby avoiding the problem that the transmission efficiency of the light in the detection device is reduced due to the divergence angle of the light.

It can be understood that the light source assembly can also be a combination of a wavelength-tunable light source and a collimating lens group. Specifically, the wavelength of the emitted light from the wavelength-tunable light source can be adjusted. The light source assembly is capable of emitting light with different wavelengths, the wavelength-tunable light source can emit light with different wavelengths according to a preset timing sequence, and the light is transmitted to the polarizer after passing through the collimating lens group. Preferably, the wavelength-tunable light source may be a laser light source, a light emitting diode or a tungsten halogen lamp, or other light sources capable of providing outgoing light for the detection device.

In an optional embodiment, the detection device further includes a compensation sheet 70, the compensation sheet 70 is arranged between the beam splitter prism 60 and the calibration component 80, and the fast axis direction of the compensation sheet 70 is the same as the The polarization directions of the transmitted polarized light of the beam splitting prism 60 are the same or vertical. Specifically, the compensation sheet 70 is used to filter the light passing through the dichroic prism 60 , and the light transmitted or reflected by the dichroic prism 60 may have some impurities that are different from the reflection direction of the dichroic prism 60 . Astigmatism, in order to improve the polarization purity of the light emitted from the beam splitting prism 60, the compensation sheet 70 is arranged between the beam splitting prism 60 and the calibration component 80, and the beam splitting prism 60 is emitted through the compensation sheet 70. stray light is blocked.

As shown in FIG. 2 , FIG. 2 is a schematic diagram of the device structure of the hardware operating environment involved in the solution of the embodiment of the present invention.

As shown in FIG. 2 , the apparatus may include: a controller 1001 , such as a CPU, a network interface 1004 , a user interface 1003 , a memory 1005 , and a communication bus 1002 . Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. Optionally, the network interface 1004 may include a standard wired interface and a wireless interface (eg, a WI-FI interface). The memory 1005 may be high-speed RAM memory, or may be non-volatile memory, such as disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned controller 1001 .

Those skilled in the art can understand that the device structure shown in FIG. 2 does not constitute a limitation to the device, and may include more or less components than the one shown, or combine some components, or arrange different components.

As shown in FIG. 2 , the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module and an application program.

In the server shown in FIG. 2, the network interface 1004 is mainly used to connect to the background server and perform data communication with the background server; the user interface 1003 is mainly used to connect to the client (client) and perform data communication with the client; and the controller 1001 can be used to invoke an application stored in memory 1005 and perform the following operations:

acquiring first brightness information detected by the detection unit when the calibration component is located at the detection position;

acquiring second brightness information detected by the detection unit when the display component to be tested is located at the detection position;

According to the first brightness information and the second brightness information, a display parameter of the display component is determined, and the display parameter includes at least one of reflectance, contrast, color temperature, color difference, color uniformity, and brightness uniformity.

Further, the controller 1001 can call the application program stored in the memory 1005, and also perform the following operations:

determining a first ratio of the second sub-brightness information to the first sub-brightness information;

obtaining a second ratio between the fourth sub-brightness information and the first ratio;

A third ratio between the second ratio and the third sub-brightness information is acquired, where the third ratio is the brightness uniformity of the display component to be tested.

In order to achieve the above object, the present application proposes a detection method, which is applied to the detection device according to any one of the above embodiments, and the detection method includes:

S100, acquiring first brightness information detected by the detection unit 100 when the calibration component 80 is located at the detection position;

Wherein, the detection device is provided with a detection position, and the calibration component 80 and the display component to be tested are respectively set on the detection position, and the first brightness information reflected by the calibration component 80 is measured respectively. With the second brightness information reflected by the display component to be tested, the display parameters of the display component to be tested are calculated by calculating the first brightness information and the second brightness information. Specifically, the display parameters are: Including at least one of reflectivity, contrast, brightness uniformity.

Specifically, the first brightness information refers to that when the calibration component 80 is set at the detection position, after the light emitted by the light source component 10 is reflected by the calibration component 80 and transmitted to the detection unit 100, The brightness of the light detected by the detection unit 100 . In a specific embodiment, the light emitted by the light source assembly 10 passes through the uniform light element 20, the relay lens group 30, the polarizer 40 and the analyzer 50 in sequence, and is reflected by the beam splitting prism 60 and transmitted to the light source. The calibration component 80 , after the light is reflected again by the calibration component 80 , the light is transmitted through the dichroic prism 60 and the neutral filter 90 in turn and then transmitted to the detection unit 100 , so that the detected light is measured by the detection unit 100 . Describe the first brightness information.

In a preferred embodiment, the detection unit 100 is a luminance meter. It can be understood that the detection unit 100 can be adjusted according to the actual detected display parameters. In other embodiments, the detection unit 100 can also be an industrial camera .

S200, acquiring second brightness information detected by the detection unit 100 when the display component to be tested is located at the detection position;

Specifically, the second brightness information refers to that when the calibration component 80 is set at the detection position, the light emitted by the light source component 10 is transmitted to the detection unit 100 after being reflected by the display component to be tested. , the brightness detected by the detection unit 100 . In a specific embodiment, the light emitted by the light source assembly 10 passes through the uniform light element 20, the relay lens group 30, the polarizer 40 and the analyzer 50 in sequence, and is reflected by the beam splitting prism 60 and transmitted to the light source. The display component to be tested, after the light is reflected again by the display component to be tested, the light is transmitted through the beam splitting prism 60 and the neutral filter 90 in sequence and then transmitted to the detection unit 100 , thereby passing through the detection unit 100 The first brightness information is measured.

S300: Determine display parameters of the display component according to the first brightness information and the second brightness information, where the display parameters include at least one of reflectivity, contrast, color temperature, color difference, color uniformity, and brightness uniformity.

In a specific embodiment, the detection device is used to measure the reflectivity of the display component to be tested. First, the calibration component 80 is set at the detection position. When the calibration component 80 is in an open state, the The phase retarder 81 of the calibration component 80 is at an angle of 45 degrees with the polarization direction of the beam splitting prism 60, and the first brightness information L1 of the calibration component 80 when the calibration component 80 is turned on is measured by the detection unit 100 , and calculate the incident light brightness information L2 considering the detection device according to the first brightness information L1. Since there is a light transmission loss in the detection device, L2>L1. After replacing the calibration component 80 at the detection position with the display component to be tested, the second luminance information L3 of the display component to be tested is measured. After the second luminance information L3 is determined, the reflectivity of the light source assembly 10 to be tested is determined, and the reflectivity of the display assembly to be tested is L3/L2.

In another specific embodiment, the detection device is used to measure the contrast of the display component to be tested. First, the calibration component 80 is set at the detection position. When the calibration component 80 is in a closed state, the calibration component 80 The phase retarder 81 of the calibration component 80 is at an angle of 90 degrees with the polarization direction of the beam splitting prism 60, and the brightness information S3 of the calibration component 80 in the off state is measured, and then the display component to be tested is measured in the open state. After determining S1, S2 and S3, the contrast ratio of the display component to be tested is determined to be (S1-S3)/(S2-S3).

It can be understood that the display parameter used by the detection device for detection is not limited to this, and can also be used to detect at least one of color temperature, color difference, color uniformity, and luminance uniformity of the display component.

In another specific embodiment, the display parameter is brightness uniformity, the display parameter is brightness uniformity, the detection area of the detection unit 100 includes a center area and at least one edge area, and the first brightness information includes a calibration component 80 The first sub-brightness information of the central area and the second sub-brightness information of at least one edge area "The second brightness information includes the third sub-brightness information of the central area of the display component to be tested and the fourth sub-brightness of at least one edge area. information, the step S300 includes:

S310, determining a first ratio of the second sub-brightness information to the first sub-brightness information;

S320, obtaining a second ratio between the fourth sub-brightness information and the first ratio;

S330: Obtain a third ratio between the second ratio and the third sub-brightness information, where the third ratio is the brightness uniformity of the display component to be tested.

Specifically, first determine the brightness information of the calibration component 80 in multiple regions, wherein the positions of the light reflected by different regions of the calibration component 80 transmitted to the detection unit 100 are the same as the positions on the calibration component 80 correspond. Preferably, the calibration component 80 is provided with at least 5 areas, 1 area is located at the center of the calibration component 80, and the other 4 areas are located at the edge of the calibration component 80, respectively measuring the detection unit 100 brightness information S1, S2, S3, S4, S5 of a plurality of the test areas detected, after the calibration component 80 is measured, replace the calibration component 80 on the detection position with the to-be-to-be Measure the display component, and perform the test in the measurement area corresponding to the display component, and obtain the brightness information S1', S2', S3', S4', S5'. After completing the brightness information test,

Set a1=S1/S5, a2=S2/S5, a3=S3/S5, a4=S4/S5;

b1= S1’/a1, b2= S2’/a2, b1= S3’/a3, b4= S4’/a4;

Then the brightness uniformity of the display component to be tested is:

Uniformity=[(b1+b2+b3+b4)/4]/S5’.

In an optional embodiment, when the display component to be tested is detected by the detection device, it is also necessary to complete the continuous debugging of the detection device. Specifically, the detection unit 100 is set at the detection position, And the neutral filter 90 is arranged between the beam splitting prism 60 and the detection unit 100, and the detection data of the detection unit 100 is aligned with the position of the collimator group, the polarization direction of the polarizer 40, and the polarization of the analyzer 50. The polarization direction, the setting angle of the beam splitting prism 60, and the setting angle of the compensation plate are adjusted, so as to ensure the accuracy and precision of the detection data of the detection device.

In order to achieve the above purpose, the present application also proposes a computer-readable storage medium, where a display program is stored on the computer-readable storage medium, and when the display program is executed by a processor, the display program described in any of the foregoing embodiments is implemented. Displays the steps of the method.

In some optional implementation manners, the processor may be a central processing unit (Central Processing Unit, CPU), and may also be other general-purpose processors, digital signal processors (Digital Signal Processors, DSP), application specific integrated circuits (Application Specific Integrated Circuits) Integrated Circuit, ASIC), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory may be an internal storage unit of the device, such as a hard disk or memory of the device. The memory may also be an external storage device of the device, such as a pluggable hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash memory card (Flash Card) and the like equipped on the device. Further, the memory may also include both an internal storage unit of the device and an external storage device. The memory is used to store the computer program and other programs and data required by the device. The memory may also be used to temporarily store data that has been output or is to be output.

Those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. Module completion, that is, dividing the internal structure of the device into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment may be integrated in one processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit, and the above-mentioned integrated units may adopt hardware. It can also be realized in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present application. For the specific working processes of the units and modules in the above-mentioned system, reference may be made to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

The above descriptions are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformations made by the contents of the description and drawings of the present invention, or the direct/indirect application Other related technical fields are included in the scope of patent protection of the present invention.

Claims (10)

1. The detection device is characterized by comprising a light source component, a polarizer, a beam splitter prism, a calibration component and a detection unit, wherein the calibration component comprises a phase retarder and a reflecting mirror, and the phase retarder is arranged on one side of the reflecting mirror, which is close to the beam splitter prism; the light emitted by the light source component sequentially passes through the polarizer and the light splitting prism and then is reflected to the calibration component, the polarization direction of the light is changed through the phase retarder, the light enters the light splitting prism after being reflected by the reflector, and the light is transmitted to the detection unit after being transmitted by the light splitting prism.

2. The detection device of claim 1, further comprising an optical integrator disposed between the light source assembly and the polarizer.

3. The inspection device of claim 1, further comprising an analyzer disposed between the polarizer and the beam splitting prism.

4. The inspection device of claim 1, further comprising a neutral filter disposed between the beam splitter prism and the inspection unit.

5. The detecting device according to claim 1, wherein the light source assembly comprises a first light source, a second light source, a third light source, a first dichroic mirror and a second dichroic mirror, the light emitted from the first light source is transmitted to the polarizer after passing through the first dichroic mirror and the second dichroic mirror in sequence, the light emitted from the second light source is reflected by the first dichroic mirror and transmitted to the polarizer after passing through the second dichroic mirror, and the light emitted from the third light source is transmitted to the polarizer after being reflected by the second dichroic mirror.

6. The detection device of claim 5, wherein the light source assembly further comprises a first set of collimating lenses disposed between the first light source and the first dichroic mirror, a second set of collimating lenses disposed between the second light source and the first dichroic mirror, and a third set of collimating lenses disposed between the third light source and the second dichroic mirror.

7. The inspection device of claim 1, further comprising a compensator disposed between the beam splitter prism and the alignment assembly, wherein the fast axis of the compensator is substantially the same as or perpendicular to the polarization direction of the transmitted polarized light of the beam splitter prism.

8. A detection method applied to the detection apparatus according to any one of claims 1 to 7, the detection method comprising:

acquiring first brightness information detected by the detection unit when the calibration assembly is located at a detection position;

acquiring second brightness information detected by the detection unit when the display component to be detected is located at the detection position;

and determining display parameters of a display assembly according to the first brightness information and the second brightness information, wherein the display parameters comprise at least one of reflectivity, contrast, color temperature, color difference, color uniformity and brightness uniformity.

9. The detecting method as claimed in claim 8, wherein the display parameter is luminance uniformity, the detecting region of the detecting unit includes a central region and at least one edge region, the first luminance information includes a first sub-luminance information of the central region and a second sub-luminance information of the at least one edge region, the second luminance information includes a third sub-luminance information of the central region and a fourth sub-luminance information of the at least one edge region, and the determining the display parameter of the display module according to the first luminance information and the second luminance information includes:

determining a first ratio of the second sub-luminance information to the first sub-luminance information;

acquiring a second ratio of fourth sub-brightness information to the first ratio;

and acquiring a third ratio of the second ratio to the third sub-brightness information, wherein the third ratio is the brightness uniformity of the display component to be tested.

10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a detection program which, when being executed by a processor, carries out the steps of the detection method according to any one of claims 8 to 9.

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