CN107942554A - A kind of display screen detection device and preparation method thereof - Google Patents
A kind of display screen detection device and preparation method thereof Download PDFInfo
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- CN107942554A CN107942554A CN201810030519.2A CN201810030519A CN107942554A CN 107942554 A CN107942554 A CN 107942554A CN 201810030519 A CN201810030519 A CN 201810030519A CN 107942554 A CN107942554 A CN 107942554A
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- 238000001514 detection method Methods 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 230000009466 transformation Effects 0.000 claims abstract description 45
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- 230000001681 protective effect Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 14
- 238000001931 thermography Methods 0.000 claims description 13
- 238000007639 printing Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
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- 239000012074 organic phase Substances 0.000 claims description 3
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- 230000002950 deficient Effects 0.000 description 2
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- 238000005286 illumination Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
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- 239000012528 membrane Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
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- 239000010409 thin film Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- Electroluminescent Light Sources (AREA)
- Radiation Pyrometers (AREA)
Abstract
The present invention provides a kind of display screen detection device and preparation method thereof, wherein, the display screen detection device includes：Display screen；Polaroid.It is arranged on the light emission side of the display screen；Photothermal transformation layer, it is arranged on the polaroid, and maps corresponding thermal energy on the corresponding region in photothermal transformation layer in the luminous energy of the emergent light of different zones based on the display screen；Detection components, it is configured to the display quality that the thermal energy of each corresponding region on the photothermal transformation layer judges the display screen.The embodiment of the present invention has the characteristics that accuracy of detection is high and simple in structure.
Description
Technical field
The present embodiments relate to display apparatus field, more particularly to a kind of display screen detection device and its preparation side
Method.
Background technology
Thin Film Transistor-LCD (Thin Film Transistor Liquid Crystal Display, referred to as
TFT-LCD it is) a kind of wide size range, low energy consumption, the display device of Low emissivity, by TFT substrate (TFT) and color membrane substrates
(Color Filter, abbreviation CF), and riddle liquid crystal layer composition between the two.
Image quality is the important evaluation points of TFT-LCD products, and it is most also generally most important that brightness disproportionation, which is influence image quality,
Factor, most of brightness disproportionations directly affect the use of the sale of product, even product.So detection to brightness disproportionation and
Interception seems increasingly important, and major part brightness disproportionation is intercepted when ET is detected at present, prevents bad sample from flowing to rear process and drawing
The goods, materials and equipments risen and the waste of production time, but the origin cause of formation presence of brightness disproportionation is diversified, complicate and everyone is to brightness disproportionation
Susceptibility it is different, there are significant portion of missing inspection, i.e., there are accuracy of detection it is inaccurate the problem of.
The content of the invention
An embodiment of the present invention provides a kind of display screen detection of situation for the brightness disproportionation that can accurately detect display screen
Device and electronic equipment.
In order to solve the above-mentioned technical problem, an embodiment of the present invention provides following technical solution：
A kind of display screen detection device, it includes：
Display screen；
Polaroid, is arranged on the light emission side of the display screen；
Photothermal transformation layer, it is arranged on the polaroid, and based on the display screen different zones emergent light
Luminous energy and corresponding thermal energy is mapped on the corresponding region of photothermal transformation layer；
Detection components, it is configured to the thermal energy of each corresponding region on the photothermal transformation layer and judges the display screen
Display quality.
In a preferred embodiment, the detection components are further configured to based on each corresponding area on the photothermal transformation layer
The difference of the thermal energy in domain determines the brightness uniformity of the display screen, the undesirable region of the display of the display screen and bad grade
At least one of
In a preferred embodiment, the detection components include：
Thermal imaging system, it is configured to the graphic images for obtaining the photothermal transformation layer；
Detection module, its color based on the graphic images acquired in the thermal imaging system on each region, judges institute
State the display quality of display screen.
In a preferred embodiment, the detection module is further configured to judge each region of the photothermal transformation layer
Within a preset range whether, such as within a preset range, then the display screen is in each area for difference between the color of graphic images
Brightness uniformity on domain, otherwise, brightness irregularities of the display screen on each region.
In a preferred embodiment, the monitoring modular is further configured to the color of the graphic images based on each region
Between maximum difference determine the display screen brightness irregularities grade.
In a preferred embodiment, wherein described device further includes：
Reminding module, it, which is configured as output to correspond to the detection components, detects that the display quality of the display screen carries
Show information；
Wherein, the reminding module includes voice alerting unit or display reminding unit.
In a preferred embodiment, it is provided with lower protection between the polaroid lower surface and the upper surface of the display screen
Layer, upper protective film is provided between the lower surface of the photothermal transformation layer and the upper surface of the polaroid.
In a preferred embodiment, the upper protective film and lower protective film are formed by transparent material.
In a preferred embodiment, the photothermal transformation layer is made of organic phase change material or inorganic phase-changing material.
The embodiment of the present invention additionally provides a kind of preparation method of display screen detection device, it includes：
Polaroid 1 is prepared using default preparation process, and upper protective film 6 and lower protective film 5 are formed on polaroid 1；
By the way of printing or evaporation, photothermal transformation layer is taken shape on polaroid 1.
It can be known based on disclosed above, the embodiment of the present invention possesses following beneficial effect：
Can realize the region for the different illumination for receiving display screen by photothermal transformation layer can show different temperature,
When performing the detection or the detection of rear process image quality of display screen, the table of the photothermal transformation layer detected using thermal imaging system surface sweeping
Face, passes to the imaging to different zones temperature, confirm undesirable position and bad grade (the high region of such as temperature represents to turn white,
Temperature low area represents to black), so as to fulfill brightness disproportionation detection accuracy and sentence the standardization of level, shorten the inspection of producing line image quality
Activity duration and improve shipment sample product quality.
Brief description of the drawings
Fig. 1 is the structure diagram of the display screen detection device in the embodiment of the present invention；
Fig. 2 is the principle assumption diagram of the display screen detection device in the embodiment of the present invention；
Fig. 3 is the principle assumption diagram of the detection components in the embodiment of the present invention.
Embodiment
In the following, the specific embodiment of the present invention is described in detail with reference to attached drawing, but it is not as limiting to the invention.
It should be understood that various modifications can be made to disclosed embodiments.Therefore, description above should not regard
To limit, and only as the example of embodiment.Those skilled in the art will expect within the scope and spirit of this
Other modifications.
Comprising in the description and the attached drawing of a part for constitution instruction shows embodiment of the disclosure, and with it is upper
What face provided is used to explain the disclosure together to the substantially description of the disclosure and the detailed description given below to embodiment
Principle.
It is of the invention by the description to the preferred form of the embodiment that is given as non-limiting examples with reference to the accompanying drawings
These and other characteristic will become apparent.
It is also understood that although with reference to some instantiations, invention has been described, but people in the art
Member realize with can determine the present invention many other equivalents, they have feature as claimed in claim and therefore all
In the protection domain limited whereby.
When read in conjunction with the accompanying drawings, in view of described further below, above and other aspect, the feature and advantage of the disclosure will become
It is more readily apparent.
The specific embodiment of the disclosure is described hereinafter with reference to attached drawing；It will be appreciated, however, that the disclosed embodiments are only
The example of the disclosure, it can use various ways to implement.It is known and/or repeat function and structure be not described in detail to avoid
Unnecessary or unnecessary details make it that the disclosure is smudgy.Therefore, specific structural and feature disclosed herein is thin
Section is not intended to restrictions, but as just the basis of claim and representative basis for instruct those skilled in the art with
Substantially any appropriate detailed construction diversely uses the disclosure.
This specification can be used phrase " in one embodiment ", " in another embodiment ", " in another embodiment
In " or " in other embodiments ", it may refer to according to one or more of identical or different embodiment of the disclosure.
In the following, the embodiment of the present invention is described in detail with reference to attached drawing, an embodiment of the present invention provides a kind of detection of display screen
Device, the detection device can be used for the uniformity for detecting the brightness of display screen, can pass through the realization pair of the principle of photothermal conversion
The detection of the display brightness in region is answered, so as to know whether brightness of display screen is uniform, accuracy of detection is high.
As depicted in figs. 1 and 2, wherein Fig. 1 is the structure diagram of the display screen detection device in the embodiment of the present invention, is schemed
2 be the principle assumption diagram of the display screen detection device in the embodiment of the present invention.
Wherein, the display screen detection device in the embodiment of the present invention can include：Polaroid 1, photothermal transformation layer 2 and detection
Component 3 and display screen (not shown).Wherein, polaroid 1 can be arranged on above display screen to be detected (i.e. display screen
Light emission side), and can be structured as the upper polaroid of display screen.Photothermal transformation layer 2 is arranged on polaroid 1, and photothermal conversion
The area of layer 2 is greater than or equal to the screen area of display screen, and photothermal transformation layer 2 can corresponding covering display screen.Thus,
The light that display screen is sent under dispaly state by polaroid 1 and can be irradiated on photothermal transformation layer 2, and photothermal transformation layer 2
Optical-thermal conversion material the luminous energy of the part light corresponding Mapping and Converting generation heat (thermal energy) can be changed photo-thermal therefrom
Temperature of the conversion layer 2 in each corresponding region.Moreover, display screen and photothermal transformation layer 2 can be divided into multiple regions, display
Each region of screen and photothermal transformation layer 2 also corresponds.It is thereby achieved that based on display screen different zones emergent light
Brightness value and corresponding temperature (thermal energy) is mapped on the corresponding region of photothermal transformation layer 2.
Detection components 3 can then detect the temperature (thermal energy) in each region on photothermal transformation layer 2, and be judged based on the temperature
The display quality of display screen, can such as determine display screen brightness whether uniformly and display screen the undesirable region of display and
Undesirable grade etc..Specifically, since under normal circumstances, the brightness of the emergent light sent on each region of display screen should be phase
With, and the temperature that photothermal transformation layer 2 is mapped out on corresponding region should also be as identical, detection components 3 may determine that light
The temperature in each region determines whether the brightness of display screen is uniform on heat conversion 2, may be used also in the brightness irregularities of display screen
To determine the display area of luminosity inequality, that is, show undesirable region, and according to the difference between each regional luminance
Determine undesirable grade.
The principle flow chart for the detection components being illustrated in figure 2 in the embodiment of the present invention, wherein detection components can include
Thermal imaging system 31 and the detection module 32 being connected with thermal imaging system 31.Wherein thermal imaging system 31 can be by way of infrared acquisition
Obtain the graphic images of each regional temperature in surface corresponding to photothermal transformation layer 2.Since different temperature can in thermal imaging
Different colors is shown with corresponding, therefore, display screen is determined in the color distortion in each region based on graphic images
The quality of brightness.
And detection module 32 can then determine the brightness of display screen based on the graphic images acquired in thermal imaging system 31
Uniformity, color that specifically can be based on the graphic images acquired in the thermal imaging system on each region, judges described aobvious
The brightness uniformity of display screen, the graphic images in such as each region are identical or difference is little, then judge the brightness uniformity of display screen,
Larger color of image is such as had differences, then judges the brightness irregularities of display screen.
Specifically, detection module 31 can detect the distribution of color situation on graphic images, at the same can obtain heat into
As image corresponds to the color value (gray value) in each region of photothermal transformation layer, and each region of photothermal transformation layer 2 may determine that
Graphic images color value (such as gray value) between difference whether within a preset range, such as within a preset range, then institute
Brightness uniformity of the display screen on each region is stated, otherwise, brightness irregularities of the display screen on each region.Detection module 32
Interior to store a preset range, which can represent the brightness difference that display screen can allow, in the thermograph of acquisition
When difference between the gray value of color of image between each region of picture is in the preset range, that is, represent the brightness of display screen
To be uniform, and when exceeding the preset range there are the gray value in a certain region and the color in other regions, then it represents that display
The brightness in the region of screen is different from the brightness in other regions, i.e., brightness of display screen is uneven.
Further, detection module 31 can also be in a certain region and other areas when judging that brightness of display screen is uneven
When the difference of the gray value of color of image between domain exceeds preset range, it is defective region to determine the region, or can be with
Average value between the gray value between the gray value of some region of color of image and each region is determined is pre- more than second
If during scope, then it is defective region to judge the region.That is, detection module 31 in the embodiment of the present invention can also be into
One step judges the bad display area of display screen.In addition, in a preferred embodiment, detection module 31 is also based on each region
Graphic images color between maximum difference determine the display screen brightness irregularities grade.That is, detection mould
Block 31 can be between the color value based on each region corresponding to photothermal transformation layer 2 shown by definite graphic images most
Big difference determines the brightness irregularities grade of display screen, and the maximum difference is bigger, it was demonstrated that the inhomogeneities of display screen is higher, no
Uniform grade is also higher, conversely, difference is smaller, it was demonstrated that uneven grade is also lower.
Specifically, detection module 31 can be stored with the corresponding pass between brightness irregularities grade and color value difference
System, so that the maximum difference for the color value that detection module 31 can be between image in each region based on determined by it determines
Uneven rating scale, so as to help user or technical staff to determine whether the corresponding display screen can be applied to electricity
In sub- equipment, or which electronic equipment is corresponding selection is configured in.
In addition, the detection device in the embodiment of the present invention can also include communicating with the detection module 32 in detection components 3
The reminding module 4 of connection, the reminding module 4 can the corresponding display qualitys for exporting the display screen detected by detection module 31
Testing result, particularly, can generate and export when the detection components detect the brightness irregularities of the display screen
Corresponding prompt message；Wherein, the reminding module includes voice alerting unit or display reminding unit.It is that is, of the invention
Detection module 32 in embodiment can send the first signal to reminding module 4, prompt when definite brightness of display screen is uneven
Module is based on first signal generation and exports the non-uniform prompt message of display brightness.
Alternatively, in another embodiment, detection module 32 can brightness of display screen is uneven (display is bad) grade
Information is sent to reminding module 4, while reminding module 4 is generated based on the class information and exports corresponding prompt message, to carry
Show the grade of the current brightness disproportionation of user, help user to judge the quality of display screen.The mode for wherein exporting prompt message can
Think voice output or display output, i.e. reminding module can include voice alerting unit and display reminding unit.
In addition, in embodiments of the present invention, lower protection is provided between the lower surface of polaroid 1 and the upper surface of display screen
Layer 5, upper protective film 6 is provided between the lower surface of photothermal transformation layer 2 and the upper surface of polaroid 1.Wherein, the upper protective film
6 and lower protective film 5 formed by transparent material, as resin material form.And lower protective film 5 may be configured to and display screen
Between release film.
In addition, the photothermal transformation layer 2 in the embodiment of the present invention can be by organic phase change material or inorganic phase-changing material structure
Into.As long as corresponding according to the emergent light that display screen is sent it can produce thermal energy and the material that changes temperature can conduct
Photothermal transformation layer 2 in the embodiment of the present invention.
The preparation flow of above-mentioned polaroid 1 and photothermal transformation layer 2 in the embodiment of the present invention is as follows：
1. preparing polaroid 1 using default preparation process, and upper protective film 6 and lower protective film are formed on polaroid 1
5；Polaroid 1 wherein can be prepared using conventional preparation techniques；
2. by the way of printing or evaporation, photothermal transformation layer is taken shape in the upper protective film 6 of the non-membrane surface of polaroid 1
On (organic material generally with the mode of printing, by the way of metal oxide is generally using being deposited), wherein metal oxide material
Material can use titanium oxynitrides etc., and organic material can use the optical-thermal conversion material of Polymer Synthesizing.
Furthermore it is also possible to detection components 3 are configured, so that detection components 3 can obtain the infrared imaging of photothermal transformation layer
Image (graphic images), and analysis shows that the uniformity of screen.
Pass through the configuration of the embodiment of the present invention, it is possible to achieve the different illumination of display screen are received by photothermal transformation layer 2
Region can show different temperature, when performing the detection of display screen or rear process image quality detects, be swept using thermal imaging system
The surface for the photothermal transformation layer 2 that face is being detected, passes to the imaging to different zones temperature, confirms undesirable position and bad etc.
Level (the high region of such as temperature represents to turn white, and temperature low area represents to black), so as to fulfill brightness disproportionation detection accuracy and
Sentence the standardization of level, shorten the activity duration of producing line image quality inspection and improve the product quality of shipment sample.
In addition, the embodiment of the present invention additionally provides a kind of electronic equipment, which can include such as above-described embodiment
The display screen detection device and display screen, the brightness uniformity feelings of display screen can be detected by the display screen detection device
Condition, so as to realize that electronic equipment can easily detect the quality of the display screen of the electronic equipment.
Electronic equipment in the embodiment of the present invention can be for example mobile phone, computer equipment, television set or other have
The electronic equipment of display screen.
It is apparent to those skilled in the art that for convenience and simplicity of description, the data of foregoing description
The electronic equipment that processing method is applied to, may be referred to the corresponding description in before-mentioned products embodiment, details are not described herein.
Above example is only the exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can make the present invention respectively in the essence and protection domain of the present invention
Kind modification or equivalent substitution, this modification or equivalent substitution also should be regarded as being within the scope of the present invention.
Claims (10)
1. a kind of display screen detection device, it includes：
Display screen；
Polaroid, is arranged on the light emission side of the display screen；
Photothermal transformation layer, it is arranged on the polaroid, and based on the display screen the emergent light of different zones light
Can and corresponding thermal energy is mapped on the corresponding region of the photothermal transformation layer；
Detection components, it is configured to the display that the thermal energy of each corresponding region on the photothermal transformation layer judges the display screen
Quality.
2. device according to claim 1, wherein, the detection components are further configured to be based on the photothermal transformation layer
The difference of the thermal energy of upper each corresponding region determines the brightness uniformity of the display screen, the undesirable region of the display of the display screen
At least one of with bad grade.
3. device according to claim 1 or 2, wherein, the detection components include：
Thermal imaging system, it is configured to the graphic images for obtaining the photothermal transformation layer；
Detection module, its color based on the graphic images acquired in the thermal imaging system on each region, judges described aobvious
The display quality of display screen.
4. device according to claim 3, wherein, the detection module is further configured to judge the photothermal transformation layer
Each region graphic images color between difference whether within a preset range, it is such as within a preset range, then described aobvious
Brightness uniformity of the display screen on each region, otherwise, brightness irregularities of the display screen on each region.
5. device according to claim 3, wherein, the detection module is further configured to the thermal imaging based on each region
Maximum difference between the color of image determines the grade of the brightness irregularities of the display screen.
6. device according to claim 1, wherein further including：
Reminding module, it is configured as output to the prompting letter for corresponding to the display quality that the detection components detect the display screen
Breath；
Wherein, the reminding module includes voice alerting unit or display reminding unit.
7. device according to claim 1, wherein, set between the polaroid lower surface and the upper surface of the display screen
Lower protective layer is equipped with, upper protective film is provided between the lower surface of the photothermal transformation layer and the upper surface of the polaroid.
8. device according to claim 7, wherein, the upper protective film and lower protective film are formed by transparent material.
9. device according to claim 1, wherein, the photothermal transformation layer is by organic phase change material or inorganic-phase variable material
Material is formed.
10. a kind of preparation method of display screen detection device, it includes：
Polaroid is prepared using default preparation process, and upper protective film and lower protective film are formed on polaroid；
By the way of printing or evaporation, photothermal transformation layer is taken shape on polaroid.
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| CN201810030519.2A CN107942554B (en) | 2018-01-12 | 2018-01-12 | Display screen detection device |
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| CN201810030519.2A CN107942554B (en) | 2018-01-12 | 2018-01-12 | Display screen detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112802133A (en) * | 2021-04-13 | 2021-05-14 | 武汉精测电子集团股份有限公司 | Mini Led display screen unit plate ink color detection and sorting method based on machine vision |
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