CN108986674A - LED display with eye-protecting function - Google Patents
LED display with eye-protecting function Download PDFInfo
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- CN108986674A CN108986674A CN201810701245.5A CN201810701245A CN108986674A CN 108986674 A CN108986674 A CN 108986674A CN 201810701245 A CN201810701245 A CN 201810701245A CN 108986674 A CN108986674 A CN 108986674A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
Abstract
The present invention relates to a kind of LED display with eye-protecting function, the LED display screens by the following method: carrying out optical safety test to target LED display respectively, is tested with eye working efficiency and tested with eye comfort, obtains every test result；Comprehensive analysis is carried out to every test result, obtains analysis result；The LED display with eye-protecting function is filtered out according to the analysis result.
Description
Technical field
The present invention relates to field of LED display, more particularly to the LED display with eye-protecting function.
Background technique
With the development of science and technology, LED shows that class product is more more and more universal, it is widely used in various instructions, display, dress
The fields such as decorations, backlight, general lighting and urban landscape.Under normal conditions, the light of LED hair only has " RGB " this 3 kinds of colors, this 3
The LED of kind color, it is mostly important with " blue-ray LED " between 400nm to 500nm, it is also the most basic.And it is used in the eyes of people
The tissue for receiving light is called retina, if 400-500nm blue wave band brightness in light source are excessively high, eyes look at light straight for a long time
It is may cause behind source with asthenopia, more serious person will cause the photochemical damage of retina；Further, since the originals such as material, design
Cause, different types of LED product are also different to fatigue strength caused by eyes.
And currently, a kind of not yet be directed to the reliable classification method of LED display, to classify to LED display, and
Identify the LED display with eye-protecting function.
Summary of the invention
The present invention is intended to provide the LED display with eye-protecting function, set forth above to solve the problems, such as.
A kind of LED display with eye-protecting function is provided in the embodiment of the present invention, the LED display is by such as
Lower method screens to obtain:
Optical safety test is carried out to target LED display respectively, is tested with eye working efficiency and is surveyed with eye comfort
Examination, obtains every test result；
Comprehensive analysis is carried out to every test result, obtains analysis result；
The LED display with eye-protecting function is filtered out according to the analysis result.
Preferably, the comprehensive analysis is to be added every test result, obtains total score, as analysis knot
Fruit；Analyzing result to be greater than 90% LED display of full marks is the LED display with eye-protecting function.
Preferably, the optical safety test, the test result tested with eye working efficiency and tested with eye comfort
Accounting is respectively as follows: 45%, 30%, 25% in analysis result.
The technical solution that the embodiment of the present invention provides can include the following benefits:
Technical solution of the present invention screens LED display with qualitative method by using quantitative, so that passing through
The LED display of screening has eye-protecting function.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.It should be understood that above general description and following detailed description are only
Be it is exemplary and explanatory, the present invention can not be limited.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings, but the embodiment in attached drawing is not constituted to any limit of the invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is the flow chart of screening technique described in embodiment of the present invention.
Fig. 2 be described in embodiment of the present invention with eye working efficiency test in reading content with reference to figure.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
Technical solution of the present invention provide a combination of qualitative and quantitative analysis to LED show class product carry out evaluation point
The method of grade, it is intended to reflect LED product to the risk of eye health and the height of safety in utilization to a certain extent.
A kind of LED display with eye-protecting function of the embodiment of the present invention, in conjunction with Fig. 1, the LED display is by such as
Lower method screens to obtain:
Optical safety test is carried out to target LED display respectively, is tested with eye working efficiency and is surveyed with eye comfort
Examination, obtains every test result；
Comprehensive analysis is carried out to every test result, obtains analysis result；
The LED display with eye-protecting function is filtered out according to the analysis result.
Preferably, the comprehensive analysis is to be added every test result, obtains total score, as analysis knot
Fruit；Analyzing result to be greater than 90% LED display of full marks is the LED display with eye-protecting function.
Preferably, the optical safety test, the test result tested with eye working efficiency and tested with eye comfort
Accounting is respectively as follows: 45%, 30%, 25% in analysis result.
Specifically, optical safety test includes following five tests: colour rendering index test, colour temperature test, brightness are equal
Evenness test, spectral component test and stroboscopic test, wherein score A is to be added above-mentioned five tests score；And
And above-mentioned items accounting in score A is respectively 2/9,1/9,1/9,2/9,3/9.
Specifically, it is described with eye working efficiency test are as follows: the reading efficiency of test target LED display with refer to display screen
The difference of reading efficiency.
Wherein, the reading efficiency are as follows: using figure adjustment as reading content, by new roman font, 12 pounds of reading
Content is shown on the screen of display screen, and experimenter needs according to the reference number of previous row, judge the latter number whether with
It is identical, search per minute number to number as its reading rate, correctly searched in 2 hours number pair summation than upper
Number should be looked into as its accuracy, reading rate × accuracy=reading efficiency.
Specifically, this includes visual fatigue subjective assessment, distant vision detection, adjusting force detection with the test of eye comfort.
Wherein, in the test result with the test of eye comfort, the visual fatigue subjective assessment, distant vision detection, adjusting force
The accounting of detection is respectively 40%, 40%, 20%.
Embodiment
A kind of LED display with eye-protecting function, in conjunction with Fig. 1, the LED display screens by the following method
It arrives:
Optical safety test, score A are carried out to target LED display；
Being tested with eye working efficiency when using target LED display, score B；
Use being tested before and after target LED display with eye comfort, score C；
Score A, B, C addition are denoted as total score D, wherein D is as described greater than 90% LED display of full marks to be had
The LED display of eye-protecting function.
Wherein, optical safety test, the test result tested with eye working efficiency and tested with eye comfort are being divided
Accounting is respectively as follows: 45%, 30%, 25% in analysis result；That is, if the full marks of score A are 45 points, score B with 100 points for full marks
Full marks be 30 points, the full marks of score C are 25 points, and above-mentioned score A, B, C are to be rounded to one decimal place, and D is greater than
90 points of LED display is the LED display with eye-protecting function.
In technical scheme, by with the relevant display screen optical parameter of asthenopia, with eye working efficiency and use
Eye comfort is evaluated, and specifically defines that accounting of each section in analysis result can by validation trial
Accurately, reflect to the maximum extent and use asthenopia, and then obtain the LED display with eye-protecting function.
Above-mentioned three kinds of tests are detailed below:
It is tested about optical safety:
Optical safety test includes following five tests: colour rendering index test, colour temperature test, luminance uniformity are surveyed
Examination, spectral component test and stroboscopic test, wherein score A is to be added above-mentioned five tests score；Also, this reality
It applies in example and sets, above-mentioned items accounting in score A is respectively 2/9,1/9,1/9,2/9,3/9.
Specifically, test item includes color using the colour rendering index of spectroradio illumination photometer test target product transmitting light
Temperature, colour rendering index Ra (R1-R15), intensity of illumination, peak wavelength etc..
Wherein, colour rendering index is tested, colour rendering index is able to reflect display screen for the coloration ability of object, it is contemplated that
For reading and writing operation desk lamps, national standard Ra >=82 in the present embodiment, set following colour rendering index standards of grading:
82~85-6 points of colour rendering index, 86~90-8 points of colour rendering index, 91~100-10 points of colour rendering index；Colour developing refers to
60 or less-0 point of number, 61~70-2 points of colour rendering index, 71~81-4 points of colour rendering index.
Colour temperature is tested, colour temperature is in light optics for defining a physical quantity of light source colour.It is i.e. that some is black
Body is heated to a temperature, and when the color of the light of transmitting is identical as the color for the light that some light source is emitted, this black matrix adds
The temperature of heat is referred to as the colour temperature of the light source, abbreviation colour temperature；In the present embodiment, following color temperature index number evaluation criterion is set:
5 points of 3500~5000K-, 4 points of 5000~6500K-, 3 points of 6500~8000K-, 2 points of 8000~10000K-,
1 point of 10000K~14000K-, 0 point of 14000K or more-.
Luminance uniformity is tested, luminance uniformity refers to the ratio between minimal illumination and average brightness on regulation surface, adopts
With the transmitting of spectroradio illumination photometer test target product or each point brightness of irradiation area, pass through luminance uniformity calculation formula meter
Its luminance uniformity is calculated, as a result closer to 1, indicates that luminance uniformity is better；In the present embodiment, sets following luminance uniformity and comment
Price card is quasi-:
0.6 or less 0 point of the uniformity, 0.6~0.7-1 point, 0.7~0.8-2 points, 0.8~0.9-3 points, 0.9~
0.95-4 points, 0.95~1-5 points.
Spectral component is tested, using fiber spectrometer in darkroom, eliminating bias light influences, to electromagnetic radiation, instead
It penetrates, the spectrum of transmitted light is acquired.Obtain includes that (acquisition range can be with for 380~780nm of visible light wave range spectral component data
It is wider).Spectrum figure, and each band spectrum peak position of analytical calculation and its intensity are drawn according to data.To a certain wave band
If blue light (400~500nm) accounts for the ratio of entire spectrum, its accounting of integral calculation can be passed through.Different samples can be arrived in adjusting
Test spectral under same intensity；To the spectrum of different samples, varying strength, normalized can be done, is compared and analyzed, this reality
It applies in example, sets following spectral component evaluation criterion:
Calculate the ratio of dominant wavelength peak value between blue light wavelength peak value and 550nm~650nm between 435~465nm, ratio
Greater than 1-0 point；1~0.8-2 points of ratio；0.79~0.6-4 points of ratio；0.59~0.45-4 points of ratio；Ratio 0.44~
0.35-6 points, 0.34~0.25-8 points of ratio；0.24~0-10 points of ratio.
Stroboscopic is tested, can be tested using stroboscope, but high-frequency stroboscopic and specific strobing frequency,
Amplitude, change in optical signal waveform then need more professional equipment to test.High deadbeat is connected by quick response photodiode
Wave device can more precisely obtain stroboscopic data, such as strobing frequency, period, fluctuation range, fluctuation depth；The present embodiment
In, set following stroboscopic evaluation criterion:
No stroboscopic obtains 15 points；There is a stroboscopic, but frequency f is greater than 3125Hz, 12 points；Frequency 1250 < f < 3125,9 points, frequency f <
1250, but fluctuation amplitude (difference of maximal and minmal value/(average value * 2)) is less than 0.01*f, and 6 points, fluctuation amplitude is less than 0.025*
F, 3 points, fluctuation amplitude be greater than 0.025*f, 0 point.
Above-mentioned colour rendering index, colour temperature, luminance uniformity, spectral component and stroboscopic can reflect display screen from a side
Optical property, the present embodiment are comprehensively considered, also, the creative score evaluation criterion for establishing each test and accounting,
By validation trial, can accurately, reflection asthenopia to the maximum extent, and then obtain that accurately there is eyeshield function
The LED display of energy, unexpected technical results have been achieved.
It is tested about with eye working efficiency:
In the present embodiment, this is tested with eye working efficiency are as follows:
Experiment uses figure adjustment as reading content (array being randomly generated), by new roman font, 12 pounds of reading
Content is shown in test screen, referring to fig. 2.Subject needs the reference number according to previous row, whether judges the latter number
It is same.The number searched per minute is to number as its reading rate.The total of the number pair correctly searched is searched in 2 hours
With than should above look into number to as its accuracy.Reading efficiency=reading rate * accuracy.In the present embodiment, following use is set
Eye working efficiency evaluation criterion:
M=| Y0-Y1 |/Y0
M < 5% obtains 30 points, and 6%-10% obtains 24 points, and 11%-15% obtains 18 points, and 16%-20% obtains 12 points, and 21-25% obtains 6
Point, > 25% obtains 0 point；Wherein, Y0 is the reading efficiency of standardized product, and Y1 is the reading efficiency of test screen.
In the present embodiment, the creative evaluation index using reading efficiency as screen asthenopia, the index is based on
Screen to the combined influences of user's eyes, can strictly according to the facts, accurately reflect screen eye fatigue used to eyes.
It is tested about with eye comfort:
In the present embodiment, this includes following three tests with the test of eye comfort: visual fatigue subjective assessment, distant vision detection
It is detected with adjusting force, score C is to be added above-mentioned every test score, also, set in the present embodiment, above-mentioned items
Accounting is respectively 40%, 40%, 20% in score C.
Wherein, for visual fatigue subjective assessment:
Visual fatigue is an aggregate concept, the synthesis sex expression including the perception of various eye strains and visual performance decline.
In order to obtain subject visual fatigue subjective perception, this experiment using Likert subjective assessment scale be directed to common visual fatigue symptom into
Row marking, rate range 1-7.12 kinds of common visual fatigue symptoms are used altogether.
Visual fatigue symptoms
Scoring calculation method is as follows:
Distant vision is detected: using the eyesight of international standard visual chart measurement right and left eyes.
Scoring calculation method is as follows:
| Test front and back eyesight down ratio | Score | Star |
| 0% | 10 | 5+(★★★★★☆) |
| 10-20% | 8 | 5(★★★★★) |
| 21-30% | 6 | 4(★★★★) |
| 31-40% | 4 | 3(★★★) |
| 41-50% | 2 | 2(★★) |
| > 51% | 0 | 1(★) |
Adjusting force is detected:
Eyes see reading card by the positive power lens that reversion is clapped, after can see sighting target clearly；Overturning reversion rapidly is clapped, and makes to bear
Eyeglass one is facing to eyes.It continues to see reading card, when obscuring from feeling and can see reading card clearly, then overturning inverts bat rapidly；
1 minute record number repeatedly.
Scoring calculation method is as follows:
In the embodiment of the present invention, being tested with eye working efficiency and being tested with eye comfort is subjective test, to avoid certainly
The right influence of illumination and ambient temperature and humidity to experiment, above-mentioned test carry out in darkroom.The temperature of experimental situation is controlled in 20-23
Degree Celsius, humid control is between 35% and 50%.In order to preferably simulate the work and rest habit of staff, all experiments are arranged
It is carried out between morning 9:00 to 11:00 or afternoon 2:00 to 4:00.Subject is firstly the need of filling in about view before experiment starts
Questionnaire, adjusting force and the test eyesight of fatigue；Next needs to carry out dark adaptation in 5 minutes and light adaptation in 3 minutes；Then
The figure adjustment for starting to carry out 2 hours is tested, and centre is without rest.The questionnaire tune of a visual fatigue is completed and then is carried out in experiment
It looks into, adjusting force and eyesight testing.
Influence for control change of age to experiment, subject the range of age control 25 subjects between 23 to 36 years old.
All observer's eyesights or correct vision are normal, the visual problems such as no colour blindness and anomalous trichromatism.In the entire experiment process, all subjects
Body and psychological condition keep good.Double-blind randomized clinical trial is taken in test for setting up competing product control, and subject presses
Random sequence is successively tested using two kinds of products.Subject and examiner do not know the information of two kinds of products.
By above-mentioned test, in the present embodiment, score D can be shown from objective and subjective, qualitative and quantitative aspect reaction LED
The use eye fatigue of display screen product, in turn, the size of score D can indicate the power of eye-protecting function.
The foregoing is merely preferred modes of the invention, are not intended to limit the invention, all in spirit and original of the invention
Within then, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of LED display with eye-protecting function, which is characterized in that the LED display screens by the following method
It arrives:
Optical safety test is carried out to target LED display respectively, is tested with eye working efficiency and is tested with eye comfort, is obtained
To every test result；
Comprehensive analysis is carried out to every test result, obtains analysis result；
The LED display with eye-protecting function is filtered out according to the analysis result.
2. LED display according to claim 1, which is characterized in that
The comprehensive analysis is to be added every test result, obtains total score, as analysis result；
Analyzing result to be greater than 90% LED display of full marks is the LED display with eye-protecting function.
3. LED display according to claim 2, which is characterized in that optical safety test, with eye working efficiency
Test and the test result tested with eye the comfort accounting in analysis result are respectively as follows: 45%, 30%, 25%.
4. LED display according to claim 1, which is characterized in that the optical safety test includes: colour rendering index
Test, colour temperature test, luminance uniformity test, spectral component test and stroboscopic test.
5. LED display according to claim 4, which is characterized in that in the test result of optical safety test, institute
The accounting for stating colour rendering index test, colour temperature test, luminance uniformity test, spectral component test and stroboscopic test is respectively 2/9,
1/9、1/9、2/9、3/9。
6. LED display according to claim 1, which is characterized in that described to be tested with eye working efficiency are as follows: test target
The reading efficiency of LED display and the difference of reference display screen reading efficiency.
7. LED display according to claim 6, which is characterized in that the reading efficiency are as follows:
Using figure adjustment as reading content, new roman font, 12 pounds of reading content are shown on the screen of display screen,
Experimenter needs the reference number according to previous row, judges whether the latter number is same, and the number searched per minute is right
Number as its reading rate, read than should above look into number to as its accuracy by the summation for the number pair correctly searched in 2 hours
Reading rate × accuracy=reading efficiency.
8. LED display according to claim 1, which is characterized in that described to include visual fatigue master with the test of eye comfort
See evaluation, distant vision detection and adjusting force detection.
9. LED display according to claim 8, which is characterized in that described in the test result with the test of eye comfort
The accounting that visual fatigue subjective assessment, distant vision detection, adjusting force detect is respectively 40%, 40%, 20%.
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| CN2017111861169 | 2017-11-23 | ||
| CN201711186116 | 2017-11-23 |
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| CN108986674A true CN108986674A (en) | 2018-12-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111134613A (en) * | 2019-11-21 | 2020-05-12 | 明灏科技（北京）有限公司 | Image recognition-based orthokeratology lens fitting method and system |
| CN113010066A (en) * | 2019-12-20 | 2021-06-22 | 华为技术有限公司 | Display parameter determination method and device |
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| US5050983A (en) * | 1990-04-30 | 1991-09-24 | The Regents Of The University Of California | Visual testing method and apparatus |
| CN201166739Y (en) * | 2008-03-06 | 2008-12-17 | 黄峰彪 | Apparatus for avoiding frequency focusing of people eyeball and improving asthenopia |
| JP2015223197A (en) * | 2014-05-26 | 2015-12-14 | 株式会社トプコン | Optometry equipment control program, ophthalmologic apparatus, and optometry system |
| CN106292014A (en) * | 2016-11-04 | 2017-01-04 | 威胜集团有限公司 | A kind of method of testing of LCDs background color aberration |
| CN107277502A (en) * | 2017-08-01 | 2017-10-20 | 成都大学 | A kind of method and system for three-dimensional video-frequency visual fatigue degree of testing and assessing |
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2018
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5050983A (en) * | 1990-04-30 | 1991-09-24 | The Regents Of The University Of California | Visual testing method and apparatus |
| CN201166739Y (en) * | 2008-03-06 | 2008-12-17 | 黄峰彪 | Apparatus for avoiding frequency focusing of people eyeball and improving asthenopia |
| JP2015223197A (en) * | 2014-05-26 | 2015-12-14 | 株式会社トプコン | Optometry equipment control program, ophthalmologic apparatus, and optometry system |
| CN106292014A (en) * | 2016-11-04 | 2017-01-04 | 威胜集团有限公司 | A kind of method of testing of LCDs background color aberration |
| CN107277502A (en) * | 2017-08-01 | 2017-10-20 | 成都大学 | A kind of method and system for three-dimensional video-frequency visual fatigue degree of testing and assessing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111134613A (en) * | 2019-11-21 | 2020-05-12 | 明灏科技（北京）有限公司 | Image recognition-based orthokeratology lens fitting method and system |
| CN113010066A (en) * | 2019-12-20 | 2021-06-22 | 华为技术有限公司 | Display parameter determination method and device |
| CN113010066B (en) * | 2019-12-20 | 2022-11-11 | 华为技术有限公司 | Display parameter determination method and device |
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