CN103900795B - A kind of device and method for testing transparent display screen transparent effect - Google Patents
A kind of device and method for testing transparent display screen transparent effect Download PDFInfo
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- CN103900795B CN103900795B CN201410058384.2A CN201410058384A CN103900795B CN 103900795 B CN103900795 B CN 103900795B CN 201410058384 A CN201410058384 A CN 201410058384A CN 103900795 B CN103900795 B CN 103900795B
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Abstract
The present invention discloses a kind of device and method for testing transparent display screen transparent effect, is related to technical field of liquid crystal display.The invention provides a kind of equipment for testing transparent display screen transparent effect, including：Optical measuring device and object of reference, the optical measuring device can object of reference described in direct measurement brightness, or measure through the transparent display screen brightness of the object of reference.The method for the test transparent display screen transparent effect that the present invention is provided includes：Choose object of reference；Use the contrast C R of object of reference described in optical measuring device direct measurement1；The contrast C R of the object of reference is measured through transparent display screen using the optical measuring device2；The transparent effect parameter T of the transparent display screen is calculated, calculation formula is：The transparent effect of the transparent display screen is judged according to the transparent effect parameter T, the transparent effect parameter T is higher, and the transparent effect of the transparent display screen is better.
Description
Technical field
The present invention relates to Transparence Display technical field, more particularly to a kind of equipment for testing transparent display screen transparent effect and
Method.
Background technology
At present, with the development of Display Technique, Transparence Display technology has been got over as a kind of emerging Display Technique
Carry out more concerns, transparent display screen is in display image, and user can see the article placed thereafter through transparent display screen,
Transparent effect is better, then the object behind transparent display screen that user sees through transparent display screen is more clear, therefore to saturating
The test of the transparent effect of obvious display screen is particularly important.
Because the structure of transparent display screen is different from traditional display screen, it is used to weigh there is presently no unified method of testing
Measure transparent display screen transparent effect, so cause different vendor produce product performance parameter it is nominally inconsistent, due to nothing
Method carries out unified evaluation and test and contrast, so as to lead to not objective, real reactor product performance, more transparent display screen can not be entered
Row optimization design, and then the further development of Transparence Display technology is hindered significantly.
The content of the invention
The present invention provides a kind of device and method for testing transparent display screen transparent effect, can test the saturating of transparent display screen
Obvious results fruit.
To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：
The embodiments of the invention provide a kind of equipment for testing transparent display screen transparent effect, including：Optical measuring device
And object of reference, the optical measuring device can object of reference described in direct measurement brightness, or through the transparent display screen measurement
The brightness of the object of reference.
Specifically, the optical measuring device is luminance meter or imaging sensor.
Further, in addition to light source, when measuring the brightness of the object of reference through the transparent display screen, the light
Source is located at the transparent display screen homonymy with the object of reference.
Further, the distance of the brightness measuring device for camera and the object of reference is fixed, the light source and the reference
The distance and angle of thing are fixed.
Preferably, the light source is standard sources.
Preferably, the object of reference is Standard colour board, and the Standard colour board includes black portions and white portion.
The embodiment of the present invention additionally provides a kind of equipment test transparent display screen using described in any of the above-described technical scheme
The method of transparent effect, including：Choose object of reference；Use the contrast C R of object of reference described in optical measuring device direct measurement1；
The contrast C R of the object of reference is measured through transparent display screen using the optical measuring device2；Calculate the Transparence Display
The transparent effect parameter T of screen, calculation formula is：Judge described according to the transparent effect parameter T
The transparent effect of obvious display screen, the transparent effect parameter T is higher, and the transparent effect of the transparent display screen is better.
Further, the object of reference is Standard colour board, and the Standard colour board includes black portions and white portion, described
The contrast C R of object of reference measuring method is specially：The bright of the black portions is measured respectively using the optical measuring device
Spend LBWith the brightness L of the white portionW；According to the brightness L of the black portionsBWith the brightness L of the white portionW, calculate
The contrast C R of the object of reference, calculation formula is：
Further, it is described to measure the brightness of the black portions respectively and described white using the optical measuring device
The brightness of color part includes：Measure the bright of the brightness of the different zones of the black portions and the different zones of the white portion
Degree, and brightness curve is drawn according to each brightness value measured；Calculate the black portions brightness and the white portion it is bright
Degree, the brightness of the black portions is the average value of each brightness value of the wave trough portion of the brightness curve, the white portion
Brightness be positioned at the brightness curve peak fractions each brightness value average value.
Further, the brightness for calculating the black portions and the brightness of the white portion include：Positioned at
In each brightness value of the wave trough portion of the brightness curve, minimum brightness is used as using the 110% of the minimum value of each brightness value
Value, in each brightness value of the wave crest portions positioned at the brightness curve, using the 90% of the maximum of each brightness value as
Maximum brightness value；The average value of each brightness value positioned at wave trough portion is calculated, and calculates each brightness value for being located at wave crest portions
Average value.
Further, the illumination on the Standard colour board surface is fixed.
Test transparent display screen transparent effect device and method provided in an embodiment of the present invention, by being obtained to direct measurement
The object of reference contrast and the contrast progress computing of the object of reference obtained through the transparent display screen measurement,
The parameter for the transparent effect for characterizing the transparent display screen is drawn, and the Transparence Display is judged according to the transparent effect parameter
The transparent effect of screen, because can the transparent effect of transparent display screen through transparent display screen to be clearly visible that transparent display screen
Object below has direct influence, and can the contrast of object be to weigh can be clearly seen that the key factor of object, thus
The transparent effect of the transparent display screen can be judged by weighing influence of the transparent display screen to the contrast of the object of reference
Really, the transparent effect parameter can reflect the change of the contrast of the object of reference, so as to according to the transparent effect parameter
Judge the transparent effect of the transparent display screen, reached the purpose of the transparent effect of test transparent display screen, be conducive to institute
State transparent display screen to be evaluated and tested, the display effect for the lifting transparent display screen provides standard.
Brief description of the drawings
Fig. 1 is a kind of equipment for testing transparent display screen transparent effect of the embodiment of the present invention when being not provided with transparent display screen
Structural representation；
Fig. 2 is a kind of equipment for testing transparent display screen transparent effect of the embodiment of the present invention when setting transparent display screen
Structural representation；
Fig. 3 is a kind of flow chart for the method for testing transparent display screen transparent effect of the embodiment of the present invention；
Fig. 4 is a kind of brightness curve figure for testing the transparent method of transparent display screen of the embodiment of the present invention.
Embodiment
The device and method of test transparent display screen transparent effect a kind of to the embodiment of the present invention are carried out below in conjunction with the accompanying drawings
It is described in detail.
Referring to Figures 1 and 2, Fig. 1 is a kind of test transparent display screen transparent effect one of equipment of the embodiment of the present invention
Specific embodiment, a kind of equipment for testing transparent display screen transparent effect provided in an embodiment of the present invention, including：Optical measurement is filled
Put 2 and object of reference 1, optical measuring device 2 can direct measurement object of reference 1 contrast, or measure reference through transparent display screen 3
The contrast of thing 1.
The equipment of test transparent display screen transparent effect provided in an embodiment of the present invention, can be straight by optical measuring device 2
The contrast of measurement object of reference 1 is connect, pair of the object of reference 1 can be also measured through transparent display screen 3 by optical measuring device 2
Than degree, by the contrast of the object of reference 1 obtained to direct measurement with measuring obtained object of reference 1 through transparent display screen 3
Contrast carries out computing, draws the parameter for the transparent effect that can characterize transparent display screen 3, and can according to the transparent effect parameter
The transparent effect of transparent display screen 3 is judged, because can the transparent effect of transparent display screen to pass through transparent display screen clearly
See that the object behind transparent display screen has direct influence, and can the contrast of object be to weigh can be clearly seen that object
Key factor, thus the saturating of transparent display screen 3 can be judged by weighing influence of the transparent display screen 3 to the contrast of object of reference 1
Obvious results fruit, the transparent effect parameter can reflect the change of the contrast of object of reference 1, so as to according to the transparent effect parameter
Judge the transparent effect of transparent display screen 3, reached the purpose of the transparent effect of test transparent display screen 3, be conducive to transparent
Display screen is evaluated and tested, and the display effect for lifting transparent display screen provides standard.
In order that the result of test is more accurate, optical measuring device 2 can select luminance meter or imaging sensor.Due to bright
Degree meter or imaging sensor can be measured to the different zones on object of reference 1, thus measurement result can more comprehensively reflect
The contrast of object of reference 1, more accurately, so as to be conducive to more accurately judging the transparent effect of transparent display screen.Optical measurement
The optional luminance meter of device 2 or imaging sensor, but this is not limited only to, optical measuring device 2 listed above is only to this
What inventive embodiments were carried out illustrates rather than limit.
By the embodiment of the present invention provided test transparent display screen transparent effect equipment test process need exist
Carried out under certain illumination condition, but the intensity of illumination of natural light is difficult to keep stable, so that test result is influenceed, therefore, in order to
Make test result more accurate, the equipment for the test transparent display screen transparent effect that the embodiment of the present invention is provided may also include light
Source 4, in test process, is that object of reference 1 provides stabilization, sufficient illumination by light source 4, is measured using optical measuring device 2
During the contrast of object of reference 1, stable, sufficient illumination is conducive to the measurement of optical measuring device 2, meanwhile, for the ease of reference
Thing 1 receives the illumination of light source 4, and light source 4 and object of reference 1 can be arranged to the homonymy of transparent display screen 3, can improve 4 pairs of ginsengs of light source
According to the lighting effect of thing 1, consequently facilitating the measurement of optical measuring device 2.Thus, the result of test can be made more accurate.
Because the distance of optical measuring device 2 and object of reference 1 can influence to measure object of reference 1 using optical measuring device 2
Contrast, therefore, in order to more accurately test the transparent effect of transparent display screen 3, can make optical measuring device 2 and object of reference
1 distance is fixed, and after the contrast using the direct measurement object of reference 1 of optical measuring device 2, can be placed transparent display screen 3
The contrast of object of reference 1 is measured between optical measuring device 2 and object of reference 1 and through transparent display screen 3, so as to avoid light
The fixed influence to measurement result of the distance between measurement apparatus 2 and object of reference 1 is learned, is conducive to accurately judging Transparence Display
Shield the influence of the contrast of 3 pairs of objects of reference 1, so that the transparent effect of transparent display screen 3 is more accurately tested, simultaneously as
The distance and angle of light source 4 and object of reference 1 can influence the illumination inside the table of object of reference 1, so as to influence to fill using optical measurement
The measurement of 2 pairs of contrasts of object of reference 1 is put, therefore, the distance and angle of light source 4 and object of reference 1 can be made to fix, it is to avoid light source 4
Influence with the distance and angle of object of reference 1 to measurement result, is conducive to accurately judging transparent display screen 3 to object of reference 1
The influence of contrast, so as to more accurately test the transparent effect of transparent display screen 3.
Light source 4 can select ordinary light source or standard sources, but because the illumination that ordinary light source is provided is difficult to meet unification
Standard, influence test result accuracy, and standard sources be typically compliant with international standard there is provided illumination more stablize and easily adjust
Section, therefore, the preferable standard sources of light source 4, such as D65 standard sources carry out light as a result of standard sources to object of reference 1
According to, be conducive to using test result be used as lifting transparent display screen transparent effect standard.
Object of reference 1 can be liquid crystal display or the Standard colour board including black portions and white portion, use the liquid
Crystal display as during measurement of the object of reference 1 to carry out the contrast of object of reference 1, it is necessary to which the liquid crystal display is set respectively
For black field picture and white field picture；During the measurement for the contrast that object of reference 1 is carried out using the Standard colour board, the measurable mark
The black portions of quasi- colour table and the contrast of white portion are the contrast that can obtain reference substance 1, due to liquid crystal display being set
It is that measurement process is complicated, it is necessary to exclusively carry out regulation when being set to black field picture and white field picture, and the black field of liquid crystal display is drawn
Face and white field picture are influenceed by liquid crystal display display effect itself, it is difficult to reach the black and white of standard, it is therefore preferable that
Standard colour board including black portions and white portion is used as object of reference 1.
Reference picture 3, the embodiment of the present invention additionally provides a kind of method for testing transparent display screen transparent effect, including：
S1, selection object of reference 1；
S2, the contrast C R using the direct measurement object of reference 1 of optical measuring device 21, i.e., in optical measuring device 1 and ginseng
According to any barrier thing being not provided between thing 2 including transparent display screen, object of reference is directly measured by optical measuring device 2
1 contrast；
S3, the setting transparent display screen 3 between optical measuring device 1 and object of reference 2, and it is saturating using optical measuring device 2
Cross the contrast C R that transparent display screen 3 measures object of reference 12；
S4, the transparent effect parameter T for calculating transparent display screen 3, calculation formula is：
S5, the transparent effect for judging according to transparent effect parameter T transparent display screen 3, transparent effect parameter T are higher, transparent
The transparent effect of display screen 3 is better.
The method for the test transparent display screen transparent effect that the present embodiment is provided, can be by the ginseng that is obtained to direct measurement
Contrast and the contrast progress computing of the object of reference 1 obtained through the measurement of transparent display screen 3 according to thing 1, show that sign is transparent
The parameter of the transparent effect of display screen 3, and judge according to the transparent effect parameter transparent effect of transparent display screen 3, due to
Can the transparent effect of transparent display screen through transparent display screen to be clearly visible that the object behind transparent display screen has directly
Influence, and can the contrast of object be to weigh can be clearly seen that the key factor of object, thus can be transparent aobvious by weighing
Influence of the display screen to the contrast of object of reference judges the transparent effect of transparent display screen, and the transparent effect parameter can reflect reference
The change of the contrast of thing, specifically it, transparent aobvious in the object of reference after transparent display screen is observed through transparent display screen
Display screen would generally weaken to the contrast of object of reference, and the contrast for the object of reference that direct measurement is obtained would generally be than through saturating
The contrast for the object of reference that obvious display screen measurement is obtained is big, and therefore, the transparent effect parameter is higher, i.e. transparent effect parameter is got over
Close to 100%, transparent display screen is smaller to the Weaken degree of the contrast of object of reference, and the transparent effect of transparent display screen is better,
So as to judge the transparent effect of transparent display screen 3 according to transparent effect parameter, the transparent effect of test transparent display screen 3 has been reached
The purpose of fruit, is conducive to evaluating and testing transparent display screen, and the display effect for lifting transparent display screen provides standard.
Object of reference 1 can be liquid crystal display or the Standard colour board including black portions and white portion, use liquid crystal
Show device as being drawn during measurement of the object of reference 1 to carry out the contrast of object of reference 1, it is necessary to which liquid crystal display is respectively set into black field
Face and white field picture, but liquid crystal display is set to black field picture and white field picture needs specially to adjust liquid crystal display
Section, makes measurement process complicated, and influenceed by liquid crystal display display effect itself, the black field picture and Bai Chang of liquid crystal display
Picture is difficult to the black and white for reaching standard, the accuracy of influence contrast test, and Standard colour board is simple in construction, and standard
Colour table black portions and white portion are reference colour, are conducive to improving the accuracy of contrast test, it is therefore preferable that including black
The Standard colour board of color part and white portion includes black portions and white portion as object of reference Standard colour board, meanwhile, reference
The contrast C R of thing 1 measuring method may include：
Measure the brightness L of black portions respectively using optical measuring device 2BWith the brightness L of white portionW；
According to the brightness L of black portionsBWith the brightness L of white portionW, calculate the contrast C R of object of reference 1, calculation formula
For：
Specifically, reference picture 1, when being not provided with transparent display screen between optical measuring device 2 and object of reference 1, is surveyed respectively
Measure the brightness L that object of reference 1 is the black portions of Standard colour boardB1With the brightness L of white portionW1, and calculate now referring to thing
1 contrastWhen transparent display screen 3 is set between optical measuring device 2 and object of reference 1, surveyed using optics
Device 2 is measured, the brightness L for the black portions for being Standard colour board is measured according to thing 1 respectively through transparent display screen 3B2With white portion
Brightness LW2, and calculate the contrast now referring to thing 1
Due to being influenceed by factors such as manufacturing process, measurement error and environmental disturbances, the Standard colour board obtained by measurement
The brightness of the different zones of black portions may be different, and the brightness of the different zones of white portion may also be different, therefore, in order to
The accuracy of measurement result is improved, the brightness and the brightness of white portion of black portions is measured respectively using optical measuring device 2
It can be realized by the following method, including：
Brightness and white portion using the different zones of the black portions of the measurement object of reference 1 of optical measuring device 2 are not
Brightness curve is drawn with the brightness in region, and according to each brightness value measured, reference picture 1, Fig. 2 and Fig. 4, Fig. 4 are brightness curve
Figure, the abscissa of brightness curve is each measurement point of the Standard colour board and distance of the origin on the x directions in Fig. 1 or Fig. 2, is indulged
Coordinate is the brightness value of each measurement point；
The brightness of black portions and the brightness of white portion are calculated respectively, and the brightness of black portions is the trough of brightness curve
The average value of partial each brightness value, the brightness of white portion is being averaged for each brightness value of the peak fractions positioned at brightness curve
Value.
Influenceed by factors such as manufacturing process, measurement error and environmental disturbances, measure the black portions of obtained object of reference 1
Minimum value in each brightness value may be that the maximum in the extremum much smaller than other brightness values, each brightness value of white portion can
Can be the extremum much larger than other brightness values, can be by each of black portions in order to further improve the accuracy of measurement result
The 110% of the minimum value of brightness value is as minimum luminance value, then calculates the average value of each brightness value positioned at wave trough portion, will be white
The 90% of the maximum of each brightness value of color part is as maximum brightness value, then calculates the flat of each brightness value positioned at wave crest portions
Average.Thus, it is possible to carry out certain amendment to the brightness value obtained by measurement, it is to avoid the appearance of extremum, so that further
Improve the accuracy of measurement result.
Reference is measured due to the contrast using the direct measurement object of reference 1 of optical measuring device 2 and through transparent display screen 3
The contrast of thing 1 is required to carry out the Standard colour board certain illumination, and the surface illuminance of the Standard colour board is directly affected
Measurement result, if the surface illuminance of the Standard colour board is not fixed value, had influenceed the factor of contrast of transparent display screen 3 both
Also include the surface illuminance of the Standard colour board including transparent display screen 3, cause to be difficult to accurately to test out 3 pairs of ginsengs of transparent display screen
According to the influence of the contrast of thing 1, so that influence to test the accuracy of transparent display screen transparent effect, therefore, can be by the standard
The illumination on colour table surface is set to fixed value, for example, the surface illuminance of the Standard colour board is set as into 500Lux.
When measuring the contrast of object of reference 1 through transparent display screen 3 using optical measuring device 2, transparent display screen 3
GTG may be configured as any GTG in the middle of L0~L255, because the brightness of transparent display screen is higher, be seen through transparent display screen
The object behind transparent display screen observed is easier, and bottom is got in the brightness of transparent display screen, through transparent display screen it was observed that
Object behind transparent display screen is more difficult, therefore, and object of reference 1 is measured when passing through transparent display screen 3 using optical measuring device 2
Contrast when, the GTG of transparent display screen 3 is preferably set to L255, thus facilitate through transparent display screen 3 measurement ginseng
According to the contrast of thing 1.
It should be noted that not only when testing the transparent effect of same transparent display screen, can be by the Standard colour board table
The illumination in face is set to fixed value, also can be by the Standard colour board surface when testing the transparent effect of different transparent display screens
Illumination be set to fixed value, consequently facilitating the transparent effect of different transparent display screens is compared and evaluated.
When measuring the contrast of object of reference 1 through transparent display screen 3 using optical measuring device 2, transparent display screen 3 makes
Color can be red, green or blueness., can be by different Transparence Displays when testing the transparent effect of different transparent display screens
Screen is set to identical color, consequently facilitating the transparent effect of different transparent display screens is compared and evaluated.
In the description of this specification, specific features, structure, material or feature can be in any one or more realities
Apply and combined in an appropriate manner in example or example.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (4)
1. a kind of method for testing transparent display screen transparent effect, it is characterised in that including：
Choose object of reference；
Use the contrast C R of object of reference described in optical measuring device direct measurement1；
The contrast C R of the object of reference is measured through transparent display screen using the optical measuring device2；
The transparent effect parameter T of the transparent display screen is calculated, calculation formula is：
The transparent effect of the transparent display screen is judged according to the transparent effect parameter T, the transparent effect parameter T is higher,
The transparent effect of the transparent display screen is better；
The object of reference is Standard colour board, and the Standard colour board includes black portions and white portion, the contrast of the object of reference
Degree CR measuring method be specially：
Measure the brightness L of the black portions respectively using the optical measuring deviceBWith the brightness L of the white portionW；
According to the brightness L of the black portionsBWith the brightness L of the white portionW, calculate the contrast C R of the object of reference, meter
Calculating formula is：
2. the method for test transparent display screen transparent effect according to claim 1, it is characterised in that described using described
Optical measuring device measures the brightness of the black portions and the brightness of the white portion respectively to be included：
Measure the brightness of the different zones of the black portions and the brightness of the different zones of the white portion, and according to measuring
Each brightness value draw brightness curve；
The brightness of the black portions and the brightness of the white portion are calculated, the brightness of the black portions is bent for the brightness
The average value of each brightness value of the wave trough portion of line, the brightness of the white portion is the peak fractions positioned at the brightness curve
Each brightness value average value.
3. the method for test transparent display screen transparent effect according to claim 2, it is characterised in that described in the calculating
The brightness of black portions and the brightness of the white portion include：
In each brightness value of the wave trough portion positioned at the brightness curve, the 110% of the minimum value of each brightness value is made
For minimum luminance value, in each brightness value of the wave crest portions positioned at the brightness curve, by the maximum of each brightness value
90% be used as maximum brightness value；
The average value of each brightness value positioned at wave trough portion is calculated, and calculates the average value of each brightness value positioned at wave crest portions.
4. the method for test transparent display screen transparent effect according to claim 1, it is characterised in that the Standard colour board
The illumination on surface is fixed.
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Families Citing this family (6)
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| CN104165753B (en) * | 2014-08-01 | 2017-02-01 | 京东方科技集团股份有限公司 | Device and method for detecting transparent display screen |
| CN104252056B (en) * | 2014-09-18 | 2017-07-04 | 京东方科技集团股份有限公司 | The detection method and device of a kind of substrate |
| CN104931238B (en) * | 2015-05-18 | 2018-03-30 | 京东方科技集团股份有限公司 | A kind of device and method for testing translucent display substrate transparent effect |
| CN107238484B (en) * | 2016-03-28 | 2020-05-26 | 京东方科技集团股份有限公司 | Method and device for detecting definition of transparent display screen |
| CN107702893B (en) * | 2017-05-26 | 2019-09-10 | 深圳市华星光电半导体显示技术有限公司 | Measure the method and system of transparent display transparent effect |
| CN111045234B (en) * | 2019-12-30 | 2022-06-28 | 南京奥汀科技发展有限公司 | Intelligent device for monitoring display effect of transparent liquid crystal screen and detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08178855A (en) * | 1994-12-20 | 1996-07-12 | Asahi Glass Co Ltd | Method for inspecting light-transmissive object or specular object |
| CN101660968A (en) * | 2009-09-25 | 2010-03-03 | 中国科学院上海光学精密机械研究所 | Device and method for detecting optical performance of transparent part |
| CN102540521A (en) * | 2012-03-08 | 2012-07-04 | 歌尔声学股份有限公司 | System and method for testing transmittance of liquid crystal display (LCD) panel |
| CN102928442A (en) * | 2012-10-18 | 2013-02-13 | 苏州米凯尼克智能科技有限公司 | Optical detection device of transparent glass |
| CN202916071U (en) * | 2012-10-26 | 2013-05-01 | 京东方科技集团股份有限公司 | Transparent display device test device |
| CN102967443B8 (en) * | 2012-10-26 | 2016-10-05 | 京东方科技集团股份有限公司 | A kind of Transparence Display device method of testing and equipment |
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