CN108877690A - Reduce luminescence display method, apparatus, computer and the storage medium of blue light injury - Google Patents
Reduce luminescence display method, apparatus, computer and the storage medium of blue light injury Download PDFInfo
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- CN108877690A CN108877690A CN201810671609.XA CN201810671609A CN108877690A CN 108877690 A CN108877690 A CN 108877690A CN 201810671609 A CN201810671609 A CN 201810671609A CN 108877690 A CN108877690 A CN 108877690A
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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
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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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
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
Abstract
This application involves luminescence display method, system, computer equipment and the storage mediums of a kind of reduction blue light injury.Method includes that control the first LED and the 2nd LED carries out luminescence display respectively；The blue light of blue light and the sending of the 2nd LED to the sending of the first LED is corrected respectively, so that position of the color of the blue light of the sending of the first LED on colour gamut coordinate is overlapped with position of the color of the blue light of the sending of the 2nd LED on colour gamut coordinate.When display screen shows picture, the first LED that blue light wavelength is 460nm~465nm is respectively adopted and the 2nd LED that blue light wavelength is 435nm~440nm carries out luminescence display, the blue light wavelength of first LED is longer, effectively avoid damaging retina, 2nd LED enables to the luminous total radiation energy of display screen lower, reduces and damages to the photochemistry of retina, is corrected by the luminescent color to the first LED and the 2nd LED, metamerism matching is realized, so that display effect is more preferably.
Description
Technical field
This application involves luminescence display technical field, more particularly to a kind of reduction blue light injury luminescence display method,
Device, computer and storage medium.
Background technique
The display screen of electronic equipment most at present is all made of LED backlight, and these electronic equipments are taken by blue light
It realizes and illuminates with warm colour phosphorus powder.Therefore, these electronic equipments will generate blue light in luminescence display.
The wavelength of visible light is shorter, and the momentum and energy of photon are bigger, just has bigger probability to destroy chemical bond, inspires
More free radicals cause the damage in more molecular biology levels；Crystalline lens in human eye can absorb almost all purple
Outside line and the overwhelming majority shortwave blue violet light (also exactly why we can't see ultraviolet light for this, blue violet light Y value depending on the rate of taking effect very
Low reason), ultraviolet light can cause cataract, and shorter wavelengths of extreme ultraviolet can burn cornea, but can not almost arrive at view
Nethike embrane.And the blue violet light of extremely least a portion of 380-410nm can arrive at retina, but since ratio is too small, to the light of retina
The blue light not as good as 410-450nm is damaged, the blue light illumination of 410-450nm can be generated free radicals to retina, and these free radicals
It will lead to retinal pigment epithelium decline, pigment epithelial cell can not regenerate, the number of the pigment epithelial cell in life of people
Amount is constantly being reduced, and the decline of epithelial cell will lead to retinal rod and cone cell lacks nutrient so as to cause vision impairment.Due to
The exposure of blue light ingredient in natural light and artificial light source, these damages are generally existing, but usually not serious, a small amount of and distribution
Pigment epithelial cell decline can be filled up by closing on cell movement, to realize the compensatory of physiological function.These damages are in morning
Stage phase, which is clinically often difficult to detect by, comes；And the accumulation damaged will lead to Age-related macular pigmental degeneration, central vision
Decline, the visual field, which are reduced, night vision is difficult, colour vision is weak loses until total blindness.
Therefore, how to prevent electronic equipment to shine damage of the blue light to human body generated, the problem of at urgent need to resolve.
In today that science and technology is increasingly flourishing, blue light can be prevented by " soft, hard " two kinds of technologies.It is wherein " soft " anti-
Blue light is exactly to reduce the software approach such as blue light strength with anti-blue light glasses, anti-blue light overlay film, software to realize anti-blue light, and filter effect
For fruit also only between 30%-70%, there is no effectively solve blue light harm.And the mode of " hard " anti-blue light then refers to by hard
Part processing filters out pathogenic blue light, reduces harm of the blue light for human eye with this.
Low blue light/anti-blue light the display screen publicized extensively on the market at present is to prevent blue light to people by hardware technology
It is injured caused by eye health, is slightly increasing GaN (gallium nitride)-LED (Light Emitting Diode, light emitting diode)
The ingredient of InGaN (indium gallium nitride) and InN (indium nitride) in chip further decreases its semiconductor forbidden bandwidth, extends and shines
Peak wavelength；Greatly reduce 450nm shortwave below " nocuousness " blue light ingredient with this.
In order to reduce night use display screen for sleep quality and physically and mentally healthy adverse effect, manufacturer has not
With " the anti-blue light mode/Night " of title, the means of these anti-blue lights, which mostly use greatly, actively reduces blue channel in screen
Opening degree, the total amount of blue light is reduced, in this way, will lead to display effect yellowing.Furthermore it is also possible to pass through primary design colour temperature
Low display screen module, reduces the total amount of blue light, thus reduce the harm of blue light bring, or, do not do blue channel, pixel
Only with red and green two kinds of channels, these above-mentioned ways undoubtedly all will lead to the picture yellowing of display, lead to the aobvious of screen
Show ineffective.
Summary of the invention
Based on this, it is necessary to which luminescence display method, apparatus, computer and the storage for providing a kind of reduction blue light injury are situated between
Matter.
A kind of luminescence display method reducing blue light injury, the method includes：
It controls the first LED and the 2nd LED carries out luminescence display respectively；
The blue light of blue light and the sending of the 2nd LED to the sending of the first LED is corrected respectively, so that institute
State the color of the blue light of position of the color of the blue light of the sending of the first LED on colour gamut coordinate and the sending of the 2nd LED
Position on the colour gamut coordinate is overlapped.
The blue light wavelength of the first LED is 460nm~465nm in one of the embodiments, the 2nd LED's
Blue light wavelength is 435nm~440nm,
The blue light of the sending to the first LED and the blue light difference of the sending of the 2nd LED are corrected
Step is specially：
Based on three-dimensional color look-up table, respectively to the sending of the blue light and the 2nd LED of the sending of the first LED
Blue light is corrected respectively.
It in one of the embodiments, further include step：
The light emission luminance of first LED and the 2nd LED is adjusted, so that the saturation degree of the blue light issued is
Default saturation degree.
The light emission luminance to the first LED and the 2nd LED is adjusted in one of the embodiments,
So that the saturation degree of the blue light issued includes the step of being default saturation degree：
Based on content-adaptive backlight control techniques, the light emission luminance of the first LED and the 2nd LED is moved
State adjustment, so that the saturation degree of the blue light issued is default saturation degree.
It is specific to carry out light-emission display step respectively by control the first LED and the 2nd LED in one of the embodiments,
For：
Display pattern is obtained, the first LED and the 2nd LED is controlled according to the display pattern and carries out luminescence display respectively, institute
Stating display pattern includes day mode and Night, wherein under the day mode, controls the first LED and is sent out
Light is shown；Under the Night, controls the 2nd LED and carry out luminescence display.
The sending of the blue light and the 2nd LED of the sending to the first LED in one of the embodiments,
Blue light is corrected respectively, so that position of the color of the blue light of the sending of the first LED on colour gamut coordinate and described the
Colour gamut coordinate of the color of the blue light of the sending of two LED in the step of position on the colour gamut coordinate is overlapped is CIE1976
Colour gamut coordinate.
The chip of the 2nd LED is the gallium-nitride blue chip based on gallium nitride base board in one of the embodiments,
And the multi-quantum pit structure and/or electronic barrier layer of the 2nd LED carries out heavy doping in indium gallium nitride and indium nitride.
A kind of luminous display unit reducing blue light injury, described device include：
Light emitting module carries out luminescence display for controlling the first LED and the 2nd LED respectively；
Blue light correction module, the blue light point of the sending of the blue light and the 2nd LED for the sending to the first LED
It is not corrected, so that position of the color of the blue light of the sending of the first LED on colour gamut coordinate is with the 2nd LED's
Position of the color of the blue light of sending on the colour gamut coordinate is overlapped.
A kind of computer equipment can be run on a memory and on a processor including memory, processor and storage
Computer program, the processor realize following steps when executing the computer program：
It controls the first LED and the 2nd LED carries out luminescence display respectively；
The blue light of blue light and the sending of the 2nd LED to the sending of the first LED is corrected respectively, so that institute
State the color of the blue light of position of the color of the blue light of the sending of the first LED on colour gamut coordinate and the sending of the 2nd LED
Position on the colour gamut coordinate is overlapped.
A kind of computer readable storage medium, is stored thereon with computer program, and the computer program is held by processor
Following steps are realized when row：
It controls the first LED and the 2nd LED carries out luminescence display respectively；
The blue light of blue light and the sending of the 2nd LED to the sending of the first LED is corrected respectively, so that institute
State the color of the blue light of position of the color of the blue light of the sending of the first LED on colour gamut coordinate and the sending of the 2nd LED
Position on the colour gamut coordinate is overlapped.
Luminescence display method, apparatus, computer and the storage medium of above-mentioned reduction blue light injury show picture in display screen
When, be respectively adopted the first LED that blue light wavelength is 460nm~465nm and the 2nd LED that blue light wavelength is 435nm~440nm into
The blue light wavelength of row luminescence display, the first LED is longer, can effectively avoid damaging retina, and the 2nd LED can make
Display screen luminous total radiation energy it is lower, reduce and the photochemistry of retina damaged, in addition, by the first LED and
The luminescent color of 2nd LED is corrected, and metamerism matching is realized, so that display effect is more preferably.
Detailed description of the invention
Fig. 1 is the flow diagram for reducing the luminescence display method of blue light injury in one embodiment；
Fig. 2 is the structural block diagram for reducing the luminous display unit of blue light injury in one embodiment；
Fig. 3 is the internal structure chart of computer equipment in one embodiment；
Fig. 4 A is the switching schematic diagram of Night and day mode in one embodiment；
Fig. 4 B is Night and the blue light wavelength of day mode and luminous intensity relationship schematic diagram in one embodiment；
Fig. 5 is the electrical block diagram of the backlight LED of the display screen of one embodiment；
Fig. 6 A is the colour gamut coordinate diagram that MacAdam ellipse is shown in the CIE1976 of one embodiment with 10 times of sizes；
Fig. 6 B is the blue light of the blue light and the first LED of the first LED in the colour gamut coordinate diagram of the CIE1976 of one embodiment
Coordinate points adjust schematic diagram；
Fig. 7 is the logic diagram of the biological clock metamerism of one embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
It is noted that the luminescence display method that the reduction blue light in the application injures be applicable to actively shine or
Passively luminous display screen, the display screen include but is not limited to the display screen of mobile terminal, computer display display screen with
And the display screen of TV, the mobile terminal include but is not limited to mobile phone, tablet computer, electric palm assistant and wearable movement
Equipment (such as electronic watch), the first LED (Light EmittingDiode, light emitting diode) and the 2nd LED are above equipment
Display screen light source, for example, the LED be passive light source, for another example, the LED be active light source, i.e. the LED be OLED
(OrganicLight-Emitting Diode, Organic Light Emitting Diode).
By the luminescence display method for reducing blue light injury of the application, the blue light of display screen can be effectively reduced to human body
Retina damage, be conducive to the health of human body.In following example, applied in this way using LED as backlight
It is further elaborated for LCD (Liquid Crystal Display, the liquid crystal display) display screen in source.
In one embodiment, as shown in Figure 1, providing a kind of luminescence display method of reduction blue light injury, including：
Step 102, control the first LED and the 2nd LED carries out luminescence display respectively.
Specifically, the first LED includes multiple LED light, and the first LED is alternatively referred to as the first LED light group, the 2nd LED packet
Multiple LED light are included, the 2nd LED is alternatively referred to as the second LED light group.The wavelength for the blue light that LED light in first LED issues is
The wavelength for the blue light that LED light in 460nm~465nm, the 2nd LED issues is 435nm~440nm.Specifically, the first LED is suitable
For in the daytime, since the wavelength of its blue light is longer, can effectively avoid damaging retina, and the indigo plant of this first LED
Optical wavelength is close to natural light, in such manner, it is possible to increase the secretion of Human Cortex's alcohol and inhibit the secretion of epiphysin, makes one more smart
Refreshing vigor, therefore be conducive to the health of human body.
And the peak wavelength of the blue light of the 2nd LED is shorter, the 2nd LED is suitable for the lower applied fields of ambient brightness such as night
Scape can evade the sphere of action of C (λ) department occasion rhythm and pace of moving things action function as far as possible, and 80~100min's (minute) is low before night sleeps
It is used in lightness environment, enables to the luminous total radiation energy of display screen lower, the photochemistry of retina is damaged very
It is low, to reduce or remit influence of the night use to biological clock and sleep quality.
In the present embodiment, display screen includes two groups of LED, and one group is the first LED, and another group is the 2nd LED.In the present embodiment
Display screen display be based on CircadianBlueShift (conversion of biological clock blue light wavelength) technology, can effectively reduce to people
The damage of stereoscopic nethike embrane meets the biological clock work and rest rule of human body.
Step 104, school is carried out respectively to the blue light of the sending of the blue light and the 2nd LED of the sending of the first LED
Just, so that the indigo plant of the sending of position of the color of the blue light of the sending of the first LED on colour gamut coordinate and the 2nd LED
Position of the color of light on the colour gamut coordinate is overlapped.
In this step, the color of the blue light of the sending of color and the 2nd LED to the blue light of the sending of the first LED respectively into
Row correction, so that the sending of position of the color of the blue light of the sending of the first LED on colour gamut coordinate and the 2nd LED
Position of the color of blue light on the colour gamut coordinate is overlapped, that is to say, that so that the color of the blue light of the sending of the first LED exists
Coordinate value phase of the color of coordinate value on colour gamut coordinate and the blue light of the sending of the 2nd LED on the colour gamut coordinate
Deng, and make the indigo plant of the sending of coordinate value of the color on colour gamut coordinate and the 2nd LED of the blue light of the sending of the first LED
Coordinate value of the color of light on the colour gamut coordinate is default blue color coordinates value, wherein the default blue color coordinates value is (x, y)
=(0.15,0.06).
Specifically, colour gamut coordinate is also referred to as color gamut space, due to wavelength be 460nm~465nm blue light and wavelength be
The color of the blue light of 435nm~440nm showed is different, and the coordinate value on colour gamut coordinate is different, this species diversity exists
In the colour gamut coordinate of CIE (Commission Internationale de L'Eclairage, International Commission on Illumination) 1931
Less, but in CIE1976 (u ', v '), the coordinate value of the two differs greatly, more obviously.The blue light of 460nm~465nm
It is partial to dark green, and the blue light of 435nm~440nm is partial to aubergine.Therefore, in this step, to 460nm~465nm's
The color of the blue light of the color and 435nm~440nm of blue light is corrected, so that coordinate value of the two in colour gamut coordinate
It is identical, and the coordinate value of the two is made to be (x, y)=(0.15,0.06).
It is noted that CIE1931 (x, y) and CIE1976 (u ', v ') it is two identical color gamut spaces, it is more like
The bilingual of same content is all completely demonstrated by the complete color gamut space of the visible light of the naked eyes of human body.For at present more
The gamut standards mostly formulated based on CIE1931, such as AdobeRGB：R (0.64,0.33) G (0.21,0.71), B (0.15,0.06),
DCI-P3：R (0.68,0.32), G (0.21,0.71), B (0.15,0.06), these chromaticity coordinates are all whole in the space CIE1931
Number, and being converted to CIE1976 (u ', v ') with numerical expression is exactly very long decimal or circulating decimal, such as R (x=0.68, y=
0.32) it also can be expressed as R (u '=0.496350365, v '=0.525547445).
In view of the compressed very little of CIE1931 color gamut space blue region, indigo plant involved in this patent can not be accurately expressed
Therefore the color correcting algorithms that the difference and this patent of color chromaticity coordinates are related to use in each embodiment in the application
CIE1976 expression, corresponding chromaticity coordinates is all scaled next.Therefore, metamerism matching is realized in each embodiment, is exactly made
The color rendering effect that visually see is consistent, and unrelated in which color gamut space, the i.e. mark that can formerly have of the metamerism
Quasi- each color gamut space can be achieved.
In one embodiment, the blue light of the sending of the blue light and the 2nd LED of the sending to the first LED
It is corrected respectively, so that position of the color of the blue light of the sending of the first LED on colour gamut coordinate and the 2nd LED
Sending blue light color on the colour gamut coordinate position be overlapped the step of in colour gamut coordinate be CIE1976 colour gamut sit
Mark.
Due under the colour gamut coordinate of CIE1976, the color of the blue light of 460nm~465nm and the indigo plant of 435nm~440nm
The coordinate value of the color of light differs greatly, that is to say, that the sending of the color and the 2nd LED of the blue light of the sending of the first LED
The color of blue light differs greatly under the colour gamut coordinate of CIE1976, therefore, CIE1976 colour gamut coordinate is based on, to described first
The blue light of the sending of LED and the blue light of the sending of the 2nd LED are corrected respectively, so that the sending of the first LED
The color of position of the color of blue light on CIE1976 colour gamut coordinate and the blue light of the sending of the 2nd LED is described
Position on CIE1976 colour gamut coordinate is overlapped.
Both in this way, be corrected by the color of the blue light of the color and the 2nd LED of the blue light to the first LED, realize
Metamerism matching.In one embodiment, it is based on the matched colour correction technology (Metameric of metamerism
Matching of color calibration), the indigo plant of the sending of color and the 2nd LED to the blue light of the sending of the first LED
The color of light is corrected respectively.
In above-described embodiment, when display screen shows picture, first that blue light wavelength is 460nm~465nm is respectively adopted
The 2nd LED that LED and blue light wavelength are 435nm~440nm carries out luminescence display, and the blue light wavelength of the first LED is longer, Neng Gouyou
Effect avoids damaging retina, and the 2nd LED enables to the luminous total radiation energy of display screen lower, reduces to view
The photochemistry of nethike embrane is damaged, in addition, being corrected by the luminescent color to the first LED and the 2nd LED, realizes metamerism
Match, so that display effect is more preferably.
It is noted that although each step in the flow chart of Fig. 1 is successively shown according to the instruction of arrow, this
A little steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly state otherwise herein, these steps
It executes there is no the limitation of stringent sequence, these steps can execute in other order.For example, step 104 can be in step
It is executed before 102, alternatively, step 102 and step 104 are performed simultaneously.
In one embodiment, the blue light wavelength of the first LED is 460nm~465nm, the blue light of the 2nd LED
Wavelength is 435nm~440nm, and the blue light of the sending of the blue light and the 2nd LED of the sending to the first LED is distinguished
The step of being corrected include：Based on three-dimensional color look-up table, respectively to the blue light and described second of the sending of the first LED
The blue light of the sending of LED is corrected respectively.
In the present embodiment, the blue light wavelength of the first LED is 460nm~465nm, the blue light wavelength of the 2nd LED
For 435nm~440nm, therefore, the blue light of the first LED and the blue light color of the 2nd LED position on colour gamut coordinate are different.Specifically
Ground, the three-dimensional color look-up table are 3D LUT, specifically, in the present embodiment, pass through the driving chip (Driver of display screen
IC it) realizes and the first LED and the 2nd LED is corrected respectively, so that the color of the blue light of the sending of the first LED is in colour gamut
Position on coordinate is overlapped with position of the color of the blue light of the sending of the 2nd LED on the colour gamut coordinate, and makes
The coordinate value of the color of the blue light of the sending of one LED is (x, y) with the coordinate value with the color of the blue light of the sending of the 2nd LED
=(0.15,0.06).
Specifically, according to the basic principle of Grassmann's law and colorimetry, P=460nm~465nm can be obtained and be biased to viridescent
The blue of color then blends a small amount of red to the blue light of the first LED, and P=435~440nm is biased to aubergine, then to second
The blue light of LED blends a small amount of green, can realize that metamerism matches.
In one embodiment, reducing the luminescence display method that blue light injures further includes：To the first LED and described
The light emission luminance of two LED is adjusted, so that the saturation degree of the blue light issued is default saturation degree.
In the present embodiment, default saturation degree is to show the saturation degree of picture.Specifically, when to the first LED's and the 2nd LED
After color is corrected, the colour gamut that will lead to the color of the first LED and the 2nd LED reduces, and leads to the saturation degree decline of blue, and
This point of (x, y) on colour gamut coordinate=(0.15,0.06) can not often be covered.Therefore, in the present embodiment, according to display picture
Saturation degree the light emission luminance of the first LED and the 2nd LED is adjusted separately so that sending out the first LED and the 2nd LED
The saturation degree that light is shown is to show the default saturation degree of picture, to avoid colour gamut caused after the color to blue light is corrected
The case where diminution, saturation degree declines.
Specifically, this step executes after step 104, for so that the saturation degree of the blue light issued is default saturation
The case where degree reduces to avoid colour gamut caused after the color to blue light is corrected, and saturation degree declines.
In one embodiment, the light emission luminance to the first LED and the 2nd LED is adjusted, so that
The saturation degree of the blue light of sending is the step of presetting saturation degree：Based on content-adaptive backlight control techniques, to described
The light emission luminance of one LED and the 2nd LED carry out dynamic adjustment, so that the saturation degree of the blue light issued is default saturation degree.
Specifically, the content-adaptive backlight control techniques (CABC, Content Adaptive
BacklightControl it) is used for the content of the picture according to display, dynamic adjustment is carried out to the brightness of backlight.It is worth mentioning
It is that traditional CABC is adjusted for backlight dynamic, to realize the effect of low-power consumption.And in the present embodiment, using double CABC,
On the basis of 3D LUT, the first LED and described 2nd LED, two groups of lamps are controlled according to the chromaticity coordinates of display picture is dynamic respectively
Light emission luminance, when showing that the blue chromaticity coordinates of extreme saturation degree occurs in picture, so that the first LED or the second LED light shine
The picture of display can satisfy the saturation degree demand of picture, by the premise for increasing unfavorable non-visual biological effect as small as possible
Under, realize " borrowing lamp point color ".
It is noted that in each embodiment, adjusting to the brightness of the first LED and the 2nd LED can be by LED's
PWM (Pulse Width Modulation, pulse width modulation) is adjusted and is realized.
In one embodiment, control the first LED and the 2nd LED carries out light-emission display step respectively and is specially：
Display pattern is obtained, the first LED and the 2nd LED is controlled according to the display pattern and carries out luminescence display respectively, institute
Stating display pattern includes day mode and Night, wherein under the day mode, controls the first LED and is sent out
Light is shown；Under the Night, controls the 2nd LED and carry out luminescence display.
In the present embodiment, according to the display pattern got, controls the first LED or the 2nd LED and carry out luminescence display.This is aobvious
Show that the acquisition of mode can be to be obtained according to the instruction of user's input, is also possible to be obtained according to the ambient brightness detected.
One embodiment is to obtain the mode selection command of user's input, obtains display pattern according to mode selection command,
Selection carries out luminescence display with day mode or Night.Under day mode, the first LED of control is lighted to shine and be shown
Show, that is to say, that under day mode, shown with the LED of the blue light wavelength of 460nm~465nm, using longer wavelength
Blue light can evade the sphere of action of B (λ) blue light harm weighting function as far as possible, reduce due to high brightness bring global radiation
Energy, and avoid the photochemistry damage to retina；Meanwhile this blue light wavelength can increase human body skin close to natural light
The secretion of matter alcohol and the secretion for inhibiting epiphysin, make one more mental energy.
One embodiment is to detect ambient brightness, obtains display pattern according to ambient brightness, the display pattern includes day
Between mode and Night.Specifically, in the present embodiment, detection ambient brightness know current environment be in the daytime or night, from
And it corresponds to and luminescence display is carried out using day mode or Night.One embodiment is ambient brightness to be detected, according to environment
Luminance acquisition display pattern, when ambient brightness is greater than predetermined luminance, into day mode, when ambient brightness is less than or equal in advance
If when brightness, into Night, under day mode, carrying out luminescence display using the first LED；Under Night,
Luminescence display is carried out using the 2nd LED.
It under Night, is shown with the LED of the blue light wavelength of 435nm~440nm, using the indigo plant of shorter wavelength
Light can evade the sphere of action of C (λ) department occasion rhythm and pace of moving things action function as much as possible, and suitable night sleeps preceding 80~100min low
It is used in lightness environment, the usage scenario not high suitable for the demand before sleeping to brightness, using the blue light of shorter wavelength, Neng Gouyou
Effect is so that total radiation energy reduces so that minimum to the damage of the photochemistry of retina, effectively reduce or remit night use to biological clock and
The influence of sleep quality.
In one embodiment, the chip of the 2nd LED is the gallium-nitride blue chip based on gallium nitride base board, and institute
The multi-quantum pit structure and/or electronic barrier layer for stating the 2nd LED carry out heavy doping in indium gallium nitride and indium nitride.
I.e. described 2nd LED is gallium-nitride blue chip of the use based on gallium nitride base board, and in multi-quantum pit structure
And/or electronic barrier layer carries out the LED of heavy doping in indium gallium nitride and indium nitride.
In the present embodiment, the 2nd LED uses the GaN blue chip (P=405nm) based on GaN (gallium nitride) substrate, the indigo plant
Optical chip mainly applies to blu-ray drives laser head at present, also applies near ultraviolet excitation redgreenblue fluorescent powder composition
White light LEDs, compared to traditional based on Al2O3The GaN blue-light LED chip of substrate excites the white light of red green two colors fluorescent powder composition
There is LED better colour rendering and space to match photosensitiveness, be suitable for motion picture pickup light compensating lamp, Art Museum illumination and operating room without shadow
The high values light source such as lamp uses the ideal semiconductor light source in field.In the present embodiment, with quasi- by multi-quantum pit structure
(MQW, Multiple Quantum Well) and/or electronic barrier layer (EBL, Electron-Blocking Layer) carry out
The middle heavy doping of InGaN (indium gallium nitride) and InN (indium nitride), by the script 405nm of the GaN blue chip based on GaN substrate
Peak wavelength extend to 435~440nm, to realize the luminescence display of Night.
Here is a specific embodiment：
In the present embodiment, is realized based on CircadianMetamerism (biological clock metamerism) technology and reduce blue light wound
Evil, the CircadianMetamerism technology include：
1, (conversion of biological clock blue light wavelength, application field include lighting engineering and display skill to CircadianBlueShift
Art)；
2, Metameric matching of color calibration (is used for the matched display screen color of metamerism
Color correction technology) it include but is not limited to 3D LUT (three-dimensional color look-up table) and CABC (content-adaptive backlight control)/CALC
The technology of (the spontaneous photocontrol of content-adaptive) one kind.
In the present embodiment, with the semiconductor illumination technique of LED (light emitting diode), and using LED is the LCD of backlight
For (liquid crystal display), carry out description and explanation CircadianBlueShift technology；It should be understood that various use two kinds
Blue light wavelength Day-night shift come reduce respectively to retina and to biological clock adverse effect implementation be
The protection category of CircadianBlueShift.
As shown in Figure 4 A, it under Night, is shown based on low-light level, user can be effectively prevent to have a sleepless night, and in day
Between under mode, shown based on high brightness, being capable of effective eyeshield.By the adjustment to entire output colour gamut and by homochromy
Different spectrum matching, enables display screen to switch under two modes of day mode and Night, realizes the protection to user
The protection of naked eyes, and reduce to retina and biological clock is adversely affected.
The adjusting relationship of the wavelength of light and energy is as shown in Figure 4 B in CircadianBlueShift technology, and abscissa is light
Wavelength X, unit nm, ordinate be light intensity, the energy of light can also be considered as.Compared to Night, in mould in the daytime
Under formula, the wavelength of blue light is bigger, and energy intensity is higher, and under Night, the wavelength of blue light is smaller, and energy intensity is lower.
Specifically, in CircadianBlueShift technology, using different wave length under day mode and Night
Blue light carries out luminescence display.Under day mode, daily high brightness uses longer blue light peak wavelength, to evade B (λ) as far as possible
The sphere of action of blue light harm weighting function, because high brightness bring total radiation energy is big, main problem and contradiction are views
The photochemistry of nethike embrane is damaged；This blue light wavelength can increase point of Human Cortex's alcohol largely as natural light simultaneously
The secretion of epiphysin is secreted and inhibited, more mental energy is made one.
Under Night, ight low-light level uses shorter blue light peak wavelength, to evade C (λ) department occasion rhythm and pace of moving things as far as possible
The sphere of action of action function, night sleep preceding 80~100min and use in low-light level environment, or lie on a bed and make before sleeping
With display screens such as mobile phone plane plates, the demand to brightness is not high, and total radiation energy is low, to the damage of the photochemistry of retina (dosage according to
Rely, there are exposed margin of safety) it can be ignored, principal contradiction at this time is night use to be reduced or remitted to biological clock and sleep
The influence of quality.
In the present embodiment, as shown in figure 5, display screen has two groups of LED, the of luminescence display respectively under day mode
One LED and under Night luminescence display the 2nd LED.Multiple LED in first LED divide for top layer and set for two layers of bottom
It sets, multiple LED in the 2nd LED points are top layer and two layers of bottom setting, so that top layer includes multiple first LED and multiple second
LED, bottom include multiple first LED and multiple 2nd LED.
Specifically, under day mode：
Daylight (daily high brightness)：LED P=460nm~465nm, FWHM=18~25nm (LED
OnSapphire, InGaN/InN heavy doping).
Moonlight (ight low-light level)：LED P=435nm~440nm, FWHM=16~25nm (LEDon GaN,
InGaN/InN heavy doping)。
In the present embodiment, under day mode, the blue light wavelength of LED is 460nm~465nm, the halfwidth degree of pulse
(FWHM, Full Width at Half Maxima) is 18nm~25nm, and LED is based on sapphire substrate, using InGaN/
Heavy doping in InN.
Under Night, the blue light wavelength of LED is 435nm~440nm, and the halfwidth degree of pulse is 16nm~25nm, LED
For based on GaN substrate, using heavy doping in InGaN/InN.
The LED of Night is intended that with the GaN blue chip (P=405nm) based on GaN substrate, this indigo plant in the present embodiment
Optical chip technology is currently employed for blu-ray drives laser head, also applies near ultraviolet excitation redgreenblue fluorescent powder composition
White light LEDs, it is relatively commonly based on Al2O3The GaN blue-light LED chip of substrate excites the white light LEDs of red green two colors fluorescent powder composition,
Match photosensitiveness with better colour rendering and space, is suitable for motion picture pickup light compensating lamp, Art Museum illumination and operating room shadowless lamp etc.
High value light source uses the ideal semiconductor light source in field.
Intend the middle heavy doping by InGaN and InN in the present embodiment, the peak wavelength of its script 405nm is extended to 435
~440nm is simultaneously used.
In order to carry out color color correction, 3D-LUT colour gamut being capable of preferably backward compatible AdobeRGB and DCI-P3 two after reducing
Kind colour gamut color standard, suitable for various consumer levels and professional display products, CircadianMetamerism, this Shen
The matched colour correction technology of metamerism (please be used for using Metameric matching of color calibration
Brightness and the colour space be used as and correction target.Wherein, gamut color space is about as much as 100.4% NTSC (National
Television Standards Committee, (U.S.) National Television Standards Committee) colour gamut, covering about 89.1%
Pointer colour gamut and 43.7% the CIE1976 horseshoe diagram colour space.
The blue chromaticity coordinates that the blue light of wavelength P=435~440nm and the blue light of wavelength P=460~465nm show
Difference, this seems that difference is little in CIE1931x, the y colour space, but in CIE1976 (u ', v ') approaches uniformity colour space, it
Distance dramatically increase；In addition, the still nonideal uniform color gamut space of CIE1976, as shown in Figure 6A, by CIE1976u ', v '
In MacAdam ellipse drawn with 10 times of sizes, it is seen that the blue light of wavelength P=435~440nm and wavelength P=460~
The gap of the blue of the blue light of 465nm is larger, and P=460~465nm is biased to dark green, and P=435~440nm deviation is purplish red
Color.
3D LUT (three-dimensional color look-up table) technology：
In order to correct blue chromaticity coordinates by algorithm, realized under day mode and Night (x, y)=(0.15,
0.06) hardware 3D LUT (3Dimensions Look Up Table) technology, is used in the present embodiment, passes through display screen
Driver IC (driving chip) integration realization.
According to the basic principle of Grassmann's law and colorimetry, P=460~465nm can be obtained and be biased to dark green blue
A small amount of red should be blended, and P=435~440nm deviation aubergine should blend a small amount of green, realize metamerism matching；
As shown in fig. 7, diagram block diagram be CircadianMetamerism technical principle 3DLUT matrix, pay attention to this matrix do not include into
One step reduces and the conversion colour space is to adapt to various gamut standards, does not also include the Gamma calibration curve in conventional LUT function.
Specifically, as shown in fig. 7, external signal is input to display control signal generator, so that display screen luminescence display,
When the external signal includes vertical synchronizing signal (VSYNC), horizontal synchronizing signal (HSYNC), enable signal (ENABLE), pixel
Clock signal (PCLK) etc..Image data is converted to LUT calling to instruct with interpolation, in conjunction with double based on biological clock metamerism
The double CABC gains of the input of CABC module output and duty ratio carry out operation, and operation result exports to hardware 3D LUT module, makes
Obtaining hardware 3D LUT module can be corrected according to color of the image data to blue light, wherein image data is each pixel
Rgb value.
The image document analyzer of double CABC modules based on biological clock metamerism obtains circadian clock body clock state, image money
Expect that analyzer is distributed for analyzing color gamut, the corresponding gamut range of current picture rgb value, meter are analyzed by image document analyzer
It calculates and obtains double CABC gains and duty ratio, export to backlight control module, backlight control module is according to pulse width modulating clock
Signal and double CABC gains and duty ratio carry out the CABC output of pulse signal and Night back of day mode backlight respectively
The CABC output of pulse signal of light lamp adjusts the luminance dynamic of backlight LED to realize, so that backlight LED can adapt to show
Show the display demand of picture.
CABC (content-adaptive backlight control) technology：
After 3D LUT, colour gamut reduces, blue color saturation decline；And through design calculate can not cover (x, y)=
(0.15,0.06) this blue chromaticity coordinates, design requirement can not be reached.It is therefore desirable to which Dual is added on the basis of 3D LUT
CABC technology (traditional CABC technology is only used for backlight dynamic low power dissipation design), it is dynamic according to the chromaticity coordinates difference of display picture
Control the light emission luminance of two groups of LED light of day mode and Night；When the blue color that extreme saturation degree occurs in display picture is sat
When mark, under the premise of increasing unfavorable non-visual biological effect as small as possible, " borrowing lamp point color " is realized.
Refer to Fig. 6 B, in the present embodiment, under day mode, the blue light of the first LED is in CIE1976 (u ', v ') standard
Position in colour gamut coordinate is coordinate points 501, and under Night, position of the blue light of the 2nd LED in colour gamut coordinate is coordinate
Point 502.That is, the blue light of the first LED and the blue light of the 2nd LED are in colour gamut coordinate before not carrying out colour correction
Position has differences.Position of the green light of LED in colour gamut coordinate be coordinate points 503, coordinate points 503 be about (0.247,
0.705), position of the feux rouges of LED in colour gamut coordinate is coordinate points 504, and coordinate points 504 are about (0.68,0.31).
By CABC (content-adaptive backlight control) technology, so that position of the blue light of the first LED in colour gamut coordinate
It is coordinate points 505 along the variation of track 531, so that position of the blue light of the 2nd LED in colour gamut coordinate changes along track 532
For coordinate points 506.
After 3D LUT, so that gamut range reduces, blue color saturation decline, in this way, making the first LED and the
The gamut range of two LED is contracted within lines 510, and by Dual CABC technology, so that, increase gamut range, so that the
The gamut range of one LED and the 2nd LED are extended within lines 520, finally make the blue light of the first LED and the indigo plant of the 2nd LED
Light is overlapped on colour gamut coordinate, and the blue light of the blue light of the first LED and the 2nd LED are coordinate points 509, the coordinate points in colour gamut coordinate
509 be coordinates of targets point.
In one embodiment, as shown in Fig. 2, providing a kind of luminous display unit of reduction blue light injury, including：Hair
Optical module 202 and blue light correction module 204, wherein：
Light emitting module 202 carries out luminescence display for controlling the first LED and the 2nd LED respectively.
Blue light correction module 204 is used for the blue light of the sending of the blue light and the 2nd LED of the sending to the first LED
It is corrected respectively, so that position of the color of the blue light of the sending of the first LED on colour gamut coordinate and the 2nd LED
Position of the color on the colour gamut coordinate of blue light of sending be overlapped.
In one embodiment, the blue light wavelength of the first LED is 460nm~465nm, the blue light of the 2nd LED
Wavelength is 435nm~440nm, and blue light correction module is also used to based on three-dimensional color look-up table, respectively to the hair of the first LED
Blue light out and the blue light of the sending of the 2nd LED are corrected respectively.
In one embodiment, the luminous display unit module for reducing blue light injury further includes brightness adjusting section, is used for
The light emission luminance of first LED and the 2nd LED is adjusted, so that the saturation degree of the blue light issued is default saturation
Degree.
In one embodiment, brightness adjusting section is also used to based on content-adaptive backlight control techniques, to described the
The light emission luminance of one LED and the 2nd LED carry out dynamic adjustment, so that the saturation degree of the blue light issued is default saturation degree.
In one embodiment, light emitting module 202 is also used to obtain display pattern, according to display pattern control first
LED and the 2nd LED carries out luminescence display respectively, and the display pattern includes day mode and Night, wherein in the day
Between under mode, control the first LED and carry out luminescence display；Under the Night, control the 2nd LED carries out luminous
Display.
In one embodiment, colour gamut coordinate is CIE1976 colour gamut coordinate.
Specific restriction about the luminous display unit for reducing blue light injury may refer to above for reduction blue light wound
The restriction of harmful luminescence display method, details are not described herein.Each mould in the luminous display unit of above-mentioned reduction blue light injury
Block can be realized fully or partially through software, hardware and combinations thereof.Above-mentioned each module can be embedded in the form of hardware or independence
In processor in computer equipment, it can also be stored in a software form in the memory in computer equipment, in order to
Processor, which calls, executes the corresponding operation of the above modules.
In one embodiment, a kind of computer equipment is provided, which can be mobile terminal, computer
Or television set, internal structure chart can be as shown in Figure 3.The computer equipment include by system bus connect processor,
Memory, network interface and database.Wherein, the processor of the computer equipment is for providing calculating and control ability.The meter
The memory for calculating machine equipment includes non-volatile memory medium, built-in storage.The non-volatile memory medium is stored with operation system
System, computer program and database.The built-in storage is operating system and computer program in non-volatile memory medium
Operation provides environment.The database of the computer equipment is used to store the luminous display data for reducing blue light injury.The computer
Equipment also has a display screen, which carries out luminescence display as light source using LED, which can be backlight LED,
It can be actively luminous OLED.The network interface of the computer equipment is used to communicate with external terminal by network connection.
A kind of luminescence display method of reduction blue light injury is realized when the computer program is executed by processor.
It will be understood by those skilled in the art that structure shown in Fig. 3, only part relevant to application scheme is tied
The block diagram of structure does not constitute the restriction for the computer equipment being applied thereon to application scheme, specific computer equipment
It may include perhaps combining certain components or with different component layouts than more or fewer components as shown in the figure.
In one embodiment, a kind of computer equipment is provided, including memory, processor and storage are on a memory
And the computer program that can be run on a processor, processor realize following steps when executing computer program：
It controls the first LED and the 2nd LED carries out luminescence display respectively；
The blue light of blue light and the sending of the 2nd LED to the sending of the first LED is corrected respectively, so that institute
State the color of the blue light of position of the color of the blue light of the sending of the first LED on colour gamut coordinate and the sending of the 2nd LED
Position on the colour gamut coordinate is overlapped.
In one embodiment, the blue light wavelength of the first LED is 460nm~465nm, the blue light of the 2nd LED
Wavelength is 435nm~440nm,
Processor also realizes following steps when executing computer program：
Based on three-dimensional color look-up table, respectively to the sending of the blue light and the 2nd LED of the sending of the first LED
Blue light is corrected respectively.
In one embodiment, following steps are also realized when processor executes computer program：
The light emission luminance of first LED and the 2nd LED is adjusted, so that the saturation degree of the blue light issued is
Default saturation degree.
In one embodiment, following steps are also realized when processor executes computer program：
Based on content-adaptive backlight control techniques, the light emission luminance of the first LED and the 2nd LED is moved
State adjustment, so that the saturation degree of the blue light issued is default saturation degree.
In one embodiment, following steps are also realized when processor executes computer program：
Display pattern is obtained, the first LED and the 2nd LED is controlled according to the display pattern and carries out luminescence display respectively, institute
Stating display pattern includes day mode and Night, wherein under the day mode, controls the first LED and is sent out
Light is shown；Under the Night, controls the 2nd LED and carry out luminescence display.
In one embodiment, a kind of computer readable storage medium is provided, computer program is stored thereon with, is calculated
Machine program realizes following steps when being executed by processor：
It controls the first LED and the 2nd LED carries out luminescence display respectively；
The blue light of blue light and the sending of the 2nd LED to the sending of the first LED is corrected respectively, so that institute
State the color of the blue light of position of the color of the blue light of the sending of the first LED on colour gamut coordinate and the sending of the 2nd LED
Position on the colour gamut coordinate is overlapped.
In one embodiment, the blue light wavelength of the first LED is 460nm~465nm, the blue light of the 2nd LED
Wavelength is 435nm~440nm,
Following steps are also realized when computer program is executed by processor：
Based on three-dimensional color look-up table, respectively to the sending of the blue light and the 2nd LED of the sending of the first LED
Blue light is corrected respectively.
In one embodiment, following steps are also realized when computer program is executed by processor：
The light emission luminance of first LED and the 2nd LED is adjusted, so that the saturation degree of the blue light issued is
Default saturation degree.
In one embodiment, following steps are also realized when computer program is executed by processor：
Based on content-adaptive backlight control techniques, the light emission luminance of the first LED and the 2nd LED is moved
State adjustment, so that the saturation degree of the blue light issued is default saturation degree.
In one embodiment, following steps are also realized when computer program is executed by processor：
Display pattern is obtained, the first LED and the 2nd LED is controlled according to the display pattern and carries out luminescence display respectively, institute
Stating display pattern includes day mode and Night, wherein under the day mode, controls the first LED and is sent out
Light is shown；Under the Night, controls the 2nd LED and carry out luminescence display.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the computer program can be stored in a non-volatile computer
In read/write memory medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein,
To any reference of memory, storage, database or other media used in each embodiment provided herein,
Including non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM
(PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include
Random access memory (RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms,
Such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhancing
Type SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of luminescence display method for reducing blue light injury, the method includes：
It controls the first LED and the 2nd LED carries out luminescence display respectively；
The blue light of blue light and the sending of the 2nd LED to the sending of the first LED is corrected respectively, so that described
The color of the blue light of the sending of position of the color of the blue light of the sending of one LED on colour gamut coordinate and the 2nd LED is in institute
The position stated on colour gamut coordinate is overlapped.
2. the method according to claim 1, wherein the blue light wavelength of the first LED be 460nm~465nm,
The blue light wavelength of 2nd LED is 435nm~440nm,
The step of blue light of the sending of the blue light and the 2nd LED of the sending to the first LED is corrected respectively
Specially：
Based on three-dimensional color look-up table, respectively to the blue light of the sending of the blue light and the 2nd LED of the sending of the first LED
It is corrected respectively.
3. the method according to claim 1, wherein further including step：
The light emission luminance of first LED and the 2nd LED is adjusted, so that the saturation degree of the blue light issued is default
Saturation degree.
4. according to the method described in claim 3, it is characterized in that, described shine to the first LED and the 2nd LED
Brightness is adjusted, so that the saturation degree of the blue light issued includes the step of being default saturation degree：
Based on content-adaptive backlight control techniques, dynamic tune is carried out to the light emission luminance of the first LED and the 2nd LED
It is whole, so that the saturation degree of the blue light issued is default saturation degree.
5. the method according to claim 1, wherein control the first LED and the 2nd LED carry out respectively it is luminous
Show that step is specially：
Display pattern is obtained, the first LED and the 2nd LED is controlled according to the display pattern and carries out luminescence display respectively, it is described aobvious
Show that mode includes day mode and Night, wherein under the day mode, control the first LED and carry out luminous show
Show；Under the Night, controls the 2nd LED and carry out luminescence display.
6. the method according to claim 1, wherein the blue light of the sending to the first LED with it is described
The blue light of the sending of 2nd LED is corrected respectively, so that the color of the blue light of the sending of the first LED is on colour gamut coordinate
Colour gamut of the position with the color of the blue light of the sending of the 2nd LED in the step of position on the colour gamut coordinate is overlapped
Coordinate is CIE1976 colour gamut coordinate.
7. the method according to claim 1, wherein the chip of the 2nd LED is based on gallium nitride base board
Gallium-nitride blue chip, and the multi-quantum pit structure of the 2nd LED and/or electronic barrier layer carry out indium gallium nitride and indium nitride
Middle heavy doping.
8. a kind of luminous display unit for reducing blue light injury, which is characterized in that described device includes：
Light emitting module carries out luminescence display for controlling the first LED and the 2nd LED respectively；
Blue light correction module, the blue light of the sending of the blue light and the 2nd LED for the sending to the first LED respectively into
Row correction, so that the sending of the color of the blue light of the sending of the first LED position on colour gamut coordinate and the 2nd LED
Position of the color on the colour gamut coordinate of blue light be overlapped.
9. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, which is characterized in that the processor realizes any one of claims 1 to 6 institute when executing the computer program
The step of stating method.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step of method described in any one of claims 1 to 6 is realized when being executed by processor.
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