CN209559471U - A kind of display screen detection device - Google Patents
A kind of display screen detection device Download PDFInfo
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- CN209559471U CN209559471U CN201920370903.7U CN201920370903U CN209559471U CN 209559471 U CN209559471 U CN 209559471U CN 201920370903 U CN201920370903 U CN 201920370903U CN 209559471 U CN209559471 U CN 209559471U
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- 238000001514 detection method Methods 0.000 title claims abstract description 41
- 230000003287 optical effect Effects 0.000 claims abstract description 63
- 230000003595 spectral effect Effects 0.000 claims description 26
- 230000035945 sensitivity Effects 0.000 claims description 13
- 238000002834 transmittance Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000009738 saturating Methods 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 230000007306 turnover Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses a kind of display screen detection device, including image acquisition units, detector cells, image processing unit and filter unit, described image acquisition unit includes several camera lenses；The detector cells include several detectors, and each detector is oppositely arranged with corresponding camera lens respectively；The input terminal of described image processing unit is connected with the output end of each detector respectively；The filter unit is set between described image acquisition unit and detector cells, it includes rotating bracket and the optical filter that is arranged in the rotating bracket, the quantity of the optical filter and the quantity of camera lens are identical, the rotating bracket rotation drives each optical filter to be sequentially located between each corresponding camera lens and detector, and three is located along the same line.The utility model can be realized the detection that large-sized flat-panel display device can be completed without movement, while can also realize the flat-panel display device for disposably detecting multiple small sizes, substantially increase detection efficiency.
Description
Technical field
The utility model belongs to FPD detection technique field, and in particular to a kind of display screen detection device.
Background technique
In order to ensure the yield for the product that dispatches from the factory, all flat-panel monitors are required to do performance detection before factory.It is right
In large-sized flat-panel display device, it is mostly used single-lens brightness of image detection device in the prior art to be detected, due to
The detection range of single-lens brightness of image detection device is limited, it usually needs manually or mechanically moves to carry out large scale plate
The full frame detection of display device, low efficiency slower so as to cause detection speed, and need consuming a large amount of artificial, it greatly increases
Manufacturing cost.For the flat-panel display device of small size, although single-lens brightness of image detection device in the prior art
It can satisfy testing requirements, but its detection that can not disposably complete multiple flat-panel display devices, therefore, there is also detections to imitate
The low problem of rate.
Utility model content
In view of the above-mentioned problems, can be realized the utility model proposes a kind of display screen detection device without movement
The detection of large-sized flat-panel display device is completed, while can also realize the flat-panel monitor for disposably detecting multiple small sizes
Part substantially increases detection efficiency.
In order to achieve the above technical purposes, reach above-mentioned technical effect, the utility model is achieved through the following technical solutions:
In a first aspect, the utility model provides a kind of display screen detection device, comprising:
Image acquisition units, described image acquisition unit include several camera lenses；
Detector cells, the detector cells include several detectors, each detector respectively with corresponding camera lens phase
To setting；
Image processing unit, the input terminal of described image processing unit are connected with the output end of each detector respectively；
Filter unit, the filter unit are set between described image acquisition unit and detector cells comprising rotation
Bracket and the optical filter being arranged in the rotating bracket, the quantity of the optical filter and the quantity of camera lens are identical, the rotation
Holder pivots drive each optical filter to be sequentially located between each corresponding camera lens and detector, and three is located along the same line.
Preferably, described image acquisition unit includes three camera lenses, and the line between all adjacent camera lenses forms equilateral three
It is angular.
Preferably, the detector cells include three optical filters, and the spectral transmittance of each optical filter is respectively as follows:
Wherein, S (λ) is the relative spectral sensitivity of detector,Respectively standard colorimetric is observed
Person's spectral tristimulus value function, λ are wavelength.
Preferably, described image acquisition unit includes four camera lenses, and the line between all adjacent camera lenses forms square.
Preferably, the detector cells include four optical filters, and the spectral transmittance of each optical filter is respectively as follows:
Wherein, S (λ) is the relative spectral sensitivity of detector,Respectively standard colorimetric is observed
Person's spectral tristimulus value function.
Preferably, the first face battle array is collectively formed in all camera lenses, and all detectors are collectively formed opposite with the first face battle array
The second face battle array.
Second aspect, the utility model provide a kind of display screen detection method, comprising the following steps:
(1) optical information of tested display screen projection is received respectively using each camera lens, each optical information passes through filter unit respectively
In received by detector corresponding in detector unit after corresponding optical filter；
(2) the rotating bracket rotation in filter unit is driven, drives each optical filter to rotate, so that each optical filter is again positioned at
Between corresponding camera lens and detector, three is located along the same line；
(3) step (1) and (2) is repeated, until each optical filter in filter unit is returned to initial position；
(4) image procossing is carried out using output signal of the image processing unit to each detector in detector cells, it is complete
At the detection of display screen.
Preferably, described image acquisition unit includes four camera lenses, and the line between adjacent camera lens forms square；
When the colour stimulus that detector receives light source isWhen, the tristimulus of color sample is gone out by an integral measurement
Value X, Y, Z, specifically:
Wherein, k, cx, cy, czIt is constant, τxr(λ), τxb(λ), τy(λ) and τz(λ) is respectively that the spectrum of each optical filter is saturating
Rate is penetrated, S (λ) is the relative spectral sensitivity of detector, and λ is wavelength；
Preferably, described image acquisition unit includes three camera lenses, and the line between all adjacent camera lenses forms equilateral three
It is angular；
When the colour stimulus that detector receives light source isWhen, the tristimulus of color sample is gone out by an integral measurement
Value X, Y, Z, specifically:
Wherein, k, cx, cy, czIt is constant, τx(λ), τy(λ) and τz(λ) is respectively the spectral-transmission favtor of each optical filter, S
(λ) is the relative spectral sensitivity of detector, and λ is wavelength；
Preferably, when tested display screen is large scale display screen, described image processing unit passes through merging algorithm for images
Each detector colorimetric characteristics parametric image obtained is spliced into piece image.
Compared with prior art, the utility model has the beneficial effects that
The utility model proposes a kind of display screen detection device and methods, and can be realized can complete big ruler without movement
The detection of very little flat-panel display device, while can also realize the flat-panel display device for disposably detecting multiple small sizes, significantly
Improve detection efficiency.
Detailed description of the invention
Fig. 1 is a kind of basic light path organigram of the flat plate testing apparatus of embodiment of the utility model；
Fig. 2 is a kind of photochromic information gathering process schematic diagram of flat plate testing apparatus of embodiment of the utility model；
Fig. 3 is CIE-XYZ standard colorimetric observer spectral tristimulus value curve graph.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain that this is practical
It is novel, it is not used to limit the protection scope of the utility model.
The application principle of the utility model is explained in detail with reference to the accompanying drawing.
Embodiment 1
The utility model embodiment provides a kind of display screen detection device, comprising: image acquisition units 1, detector list
Member 3, image processing unit and filter unit 2；
Described image acquisition unit 1 includes several camera lenses；Each camera lens may be on same plane, also may be at not
On coplanar；In the preferred embodiment of the utility model embodiment, the first face battle array, described image is collectively formed in all camera lenses
Acquisition unit 1 includes four camera lenses, and the line between adjacent camera lens forms square, referring to fig. 2 in the first camera lens, the second mirror
Head, third camera lens and the 4th camera lens；The detector cells 3 include four optical filters, referring to fig. 2 in XrOptical filter, XbIt filters
Piece, Y optical filter, Z optical filter match with CIE-XYZ standard colorimetric observer's spectral tristimulus value respectively, wherein X profile by
Two groups of optical filter matchings, are fitted the long wavelength part X of X profile respectivelyrWith shortwave XbPartially (X=Xr+Xb), based on shown in Fig. 3
CIE-XYZ standard colorimetric observer's spectral tristimulus value curve graph measures the light relatively of detector after having selected detector
Spectral sensitivity is S (λ), then searches databook and obtain standard colorimetric observer's spectral tristimulus value functionThe spectral transmittance that each optical filter can be acquired according to Luther condition is respectively τxr(λ)、τxb(λ)、
τy(λ)、τz(λ):
Wherein, S (λ) is the relative spectral sensitivity of detector,Respectively standard colorimetric is observed
Person's spectral tristimulus value letter；τy(λ)、τz(λ) is corresponding with Y the and Z curve in Fig. 3 respectively；τxr(λ)、τxb(λ) respectively with Fig. 3
In XrAnd XbCurve is corresponding；
The detector cells 3 include several detectors, and each detector is oppositely arranged with corresponding camera lens respectively；Having
In body implementation process, the detector can select photodetector；In the preferred embodiment of the utility model embodiment,
The second face battle array opposite with the first face battle array is collectively formed in all detectors；
The input terminal of described image processing unit is connected with the output end of each detector respectively；
The filter unit 2 be set between described image acquisition unit 1 and detector cells 3 comprising rotating bracket and
Optical filter in the rotating bracket is set, and the quantity of the optical filter and the quantity of camera lens are identical, and the rotating bracket turns
It is dynamic that each optical filter is driven sequentially to be located between each corresponding camera lens and detector, and three is located along the same line.
In conclusion the working principle of the display screen detection device in the utility model embodiment specifically:
(1) optical information of tested display screen projection is received respectively using each camera lens, each optical information passes through filter unit 2 respectively
In received by detector corresponding in detector unit 3 after corresponding optical filter；
(2) the rotating bracket rotation in filter unit 2 is driven, each optical filter is driven to rotate, so that each optical filter position again
Between corresponding camera lens and detector, three is located along the same line, i.e. rotating bracket rotation in driving filter unit 2,
So that each optical filter turns at optical filter position originally adjacent thereto；
(3) step (1) and (2) is repeated, until each optical filter in filter unit is returned to initial position, i.e. filter unit
Four optical filters in 2, which turn over once to can be regarded as respectively, completes a signal acquisition；
(4) image procossing is carried out using output signal of the image processing unit to each detector in detector cells 3, it is complete
At the detection of display screen；Wherein when the colour stimulus that detector receives light source isWhen, sample is gone out by an integral measurement
Tristimulus values X, Y, Z of color, specifically:
Wherein, k, cx, cy, czIt is constant, τxr(λ), τxb(λ), τy(λ) and τz(λ) is respectively that the spectrum of each optical filter is saturating
Rate is penetrated, S (λ) is the relative spectral sensitivity of detector, and λ is wavelength.
When tested display screen is large scale display screen, described image processing unit passes through merging algorithm for images for each detection
Device colorimetric characteristics parametric image obtained is spliced into piece image.
Embodiment 2
The utility model embodiment the difference from embodiment 1 is that: described image acquisition unit 1 include three camera lenses, phase
Line between adjacent camera lens forms equilateral triangle, and the detector cells 3 include three optical filters, and the spectrum of each optical filter is saturating
The rate of mistake is respectively as follows:
Wherein, S (λ) is the relative spectral sensitivity of detector,Respectively standard colorimetric is observed
Person's spectral tristimulus value function, τx(λ), τy(λ)、τz(λ) respectively with the X in Fig. 3r, Y and Z curve it is corresponding；Due to XbWith Z song
Line is similar, takes XbThe shortwave part of=0.151Z as X profile.
In conclusion the working principle of the display screen detection device in the utility model embodiment specifically:
(1) optical information of tested display screen projection is received respectively using each camera lens, each optical information passes through filter unit 2 respectively
In received by detector corresponding in detector unit 3 after corresponding optical filter；
(2) the rotating bracket rotation in filter unit 2 is driven, each optical filter is driven to rotate, so that each optical filter position again
Between corresponding camera lens and detector, three is located along the same line, i.e. rotating bracket rotation in driving filter unit 2,
So that each optical filter turns at optical filter position originally adjacent thereto；
(3) step (1) and (2) is repeated, until each optical filter in filter unit is returned to initial position, i.e. filter unit
Four optical filters in 2, which turn over once to can be regarded as respectively, completes a signal acquisition；
(4) image procossing is carried out using output signal of the image processing unit to each detector in detector cells 3, it is complete
At the detection of display screen；Wherein when the colour stimulus that detector receives light source isWhen, sample is gone out by an integral measurement
Tristimulus values X, Y, Z of color, specifically:
Wherein, k, cx, cy, czIt is constant, τx(λ), τy(λ) and τz(λ) is respectively the spectral-transmission favtor of each optical filter, S
(λ) is the relative spectral sensitivity of detector, and λ is wavelength.
When tested display screen is large scale display screen, described image processing unit passes through merging algorithm for images for each detection
Device colorimetric characteristics parametric image obtained is spliced into piece image.
Embodiment 3
The utility model embodiment provides a kind of display screen detection method, comprising the following steps:
(1) optical information of tested display screen projection is received respectively using each camera lens, each optical information passes through filter unit 2 respectively
In received by detector corresponding in detector unit 3 after corresponding optical filter；
(2) the rotating bracket rotation in filter unit 2 is driven, each optical filter is driven to rotate, so that each optical filter position again
Between corresponding camera lens and detector, three is located along the same line；
(3) step (1) and (2) is repeated, until each optical filter in filter unit is returned to initial position；
(4) image procossing is carried out using output signal of the image processing unit to each detector in detector cells 3, it is complete
At the detection of display screen.
In a kind of specific embodiment of the utility model embodiment, described image acquisition unit 1 includes four camera lenses,
Line between adjacent camera lens forms square；
When the colour stimulus that detector receives light source isWhen, the tristimulus of color sample is gone out by an integral measurement
Value X, Y, Z, specifically:
Wherein, k, cx, cy, czIt is constant, τxr(λ), τxb(λ), τy(λ) and τz(λ) is respectively that the spectrum of each optical filter is saturating
Rate is penetrated, S (λ) is the relative spectral sensitivity of detector；
In another specific embodiment of the utility model embodiment, described image acquisition unit includes three mirrors
Head, the line between all adjacent camera lenses form equilateral triangle；
When the colour stimulus that detector receives light source isWhen, the tristimulus of color sample is gone out by an integral measurement
Value X, Y, Z, specifically:
Wherein, k, cx, cy, czIt is constant, τx(λ), τy(λ) and τz(λ) is respectively the spectral-transmission favtor of each optical filter, S
(λ) is the relative spectral sensitivity of detector, and λ is wavelength；
Preferably, when tested display screen is large scale display screen, described image processing unit passes through merging algorithm for images
Each detector colorimetric characteristics parametric image obtained is spliced into piece image.
Further, the display screen detection method further include: pass through the USB data interface being connected with image processing unit
By on colorimetric characteristics parametric imaging to computer display screen, display is realized.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
1. a kind of display screen detection device characterized by comprising
Image acquisition units, described image acquisition unit include several camera lenses；
Detector cells, the detector cells include several detectors, and each detector is opposite with corresponding camera lens respectively to be set
It sets；
Image processing unit, the input terminal of described image processing unit are connected with the output end of each detector respectively；
Filter unit, the filter unit are set between described image acquisition unit and detector cells comprising rotating bracket
With the optical filter being arranged in the rotating bracket, the quantity of the optical filter and the quantity of camera lens are identical, the rotating bracket
Rotation drives each optical filter to be sequentially located between each corresponding camera lens and detector, and three is located along the same line.
2. a kind of display screen detection device according to claim 1, it is characterised in that: described image acquisition unit includes three
A camera lens, the line between all adjacent camera lenses form equilateral triangle.
3. a kind of display screen detection device according to claim 2, it is characterised in that: the detector cells include three
The spectral transmittance of optical filter, each optical filter is respectively as follows:
Wherein, S (λ) is the relative spectral sensitivity of detector,Respectively standard colorimetric observer's light
Tristimulus values function is composed, λ is wavelength.
4. a kind of display screen detection device according to claim 1, it is characterised in that: described image acquisition unit includes four
A camera lens, the line between all adjacent camera lenses form square.
5. a kind of display screen detection device according to claim 4, it is characterised in that: the detector cells include four
The spectral transmittance of optical filter, each optical filter is respectively as follows:
Wherein, S (λ) is the relative spectral sensitivity of detector,Respectively standard colorimetric observer's light
Tristimulus values function is composed, λ is wavelength.
6. a kind of display screen detection device according to claim 1, it is characterised in that: the first face is collectively formed in all camera lenses
The second face battle array opposite with the first face battle array is collectively formed in battle array, all detectors.
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| CN201920370903.7U CN209559471U (en) | 2019-03-22 | 2019-03-22 | A kind of display screen detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813537A (en) * | 2019-03-22 | 2019-05-28 | 昆山钧沃光电有限公司 | A kind of display screen detection device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813537A (en) * | 2019-03-22 | 2019-05-28 | 昆山钧沃光电有限公司 | A kind of display screen detection device and method |
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Granted publication date: 20191029 |