CN107065297A - A kind of high colour gamut display backlight process - Google Patents

A kind of high colour gamut display backlight process Download PDF

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Publication number
CN107065297A
CN107065297A CN201611121988.2A CN201611121988A CN107065297A CN 107065297 A CN107065297 A CN 107065297A CN 201611121988 A CN201611121988 A CN 201611121988A CN 107065297 A CN107065297 A CN 107065297A
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China
Prior art keywords
colour gamut
light
blue
enhancing
high colour
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Pending
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CN201611121988.2A
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Chinese (zh)
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郭少平
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Individual
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Individual
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Priority to CN201611121988.2A priority Critical patent/CN107065297A/en
Publication of CN107065297A publication Critical patent/CN107065297A/en
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133603Direct backlight with LEDs
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133609Direct backlight including means for improving the color mixing, e.g. white
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133614Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light

Abstract

The invention discloses a kind of process of high colour gamut display backlight, comprise the following steps, add green emitting phosphor allotment encapsulation in LED lamp bead blue luminescence chip and red fluorescence powder;By glue, green emitting phosphor, red fluorescence powder in proportion 67.7% 80%:19%‑30%:0.9% 2.3% ratio is allocated;By the light progress enhancing feux rouges inspired by the LED after toning, the colour gamut PROCESS FOR TREATMENT of blue and green light, gold-tinted, veiling glare are filtered;Last light is subjected to color proportioning; enhancing feux rouges, the colour gamut filtering veiling glare of blue and green light obtain the light of high colour gamut; such a technique of the present invention can up to 90% 115% color gamut value; meet the requirement of the high color gamut value of display screen industry, but it is more much lower than display screen industry OLED and RGB LED high colour gamut cost and also enhance protect eyes function.

Description

A kind of high colour gamut display backlight process
Technical field
The present invention relates to a kind of process, in particular, it is related to a kind of high colour gamut display backlight process.
Background technology
Mobile phone, flat panel backlight are the essential components of mobile phone, panel display screen, and the sector generally uses 010 or 020 LED.The high colour gamut of display screen requires that color gamut value professional standard reaches more than 90%, but common LED backlit display colour gamut Value 63%-75%;Common LED strengthens filtering technique using colour gamut(The technology of South Korea, filter out gold-tinted and veiling glare)Display screen Color gamut value can reach 72%-85%;LED is blue luminescence chip, typically also needs to further be mixed colours with fluorescent material. Usual LED is to carry out light modulation toning using blue luminescence chip and yellow or orange fluorescent powder, but colour gamut strengthens filterer Skill causes the low color gamut value of brightness of display screen low because that can filter the light of yellow.It can reach that high colour gamut requirement only has in the market OLED and RGBLED techniques, but OLED technique manufacturing costs are very high, manufacturing process difficulty is big.RGBLED can not ensure large quantities of The uniformity of amount, it is impracticable.And the very low easy colour cast of mode color gamut value mixed colours using common led, strengthened by colour gamut and filtered Technique does not reach the requirement of high colour gamut still.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of high colour gamut display backlight technique side Method.
To achieve the above object, the invention provides following technical scheme:A kind of technique side of high colour gamut display backlight Method, it is characterised in that:Comprise the following steps,
S1:Add green emitting phosphor allotment encapsulation in LED lamp bead blue luminescence chip and red fluorescence powder;
S2:By glue, green emitting phosphor, red fluorescence powder 67.7%-80% in proportion:19%-30%:0.9%-2.3% ratio is entered Row allotment;
S3:The light inspired by the LED after toning is subjected to enhancing feux rouges, blue and green light colour gamut PROCESS FOR TREATMENT, Huang is filtered Light, veiling glare;
S4:Last light is subjected to color proportioning, enhancing feux rouges, blue and green light colour gamut filtering veiling glare obtain the light of high colour gamut Line.
The obtained light of the present invention, its LED X values are 0.241-0.31, and Y value is 0.235-0.31, and color temperature value is 6000-11000K;It is common to adjust the XY values reached to be 0.28-0.295 with yellow fluorescent material, but most preferably 0.288-0.2873.
Preferably, the glue quantity in S2 steps:Red fluorescence powder consumption:The ratio between green emitting phosphor consumption is 70%-75% :24%-28%:1%-2%.
Preferably, in S3 steps enhancing feux rouges, blue and green light colour gamut technique are that colour gamut strengthens filtering technique.
Preferably, the obtained light color gamut value in S4 steps is 90%-115%.
Present invention tool has the advantage that:Such a technique of the present invention can reach 90%-115% color gamut value, meet display screen line The requirement of the high color gamut value of industry, but it is more much lower than display screen industry OLED and RGB LED high colour gamut cost and also enhance Protect eyes function, colour gamut enhancing filtering process technique can realize on the upper and lower bright enhancement film of diffusion barrier, on upper bright enhancement film, up and down Add lustre on composite membrane including in the down polaroid of display screen, colour gamut enhancing filtering process technique can also be separately made individual color Domain enhancing filter membrane is used, such as be clipped between diffusion barrier and lower bright enhancement film, between lower bright enhancement film and upper bright enhancement film or Above upper bright enhancement film.
Embodiment
Embodiment one
A kind of process of high colour gamut display backlight of the present embodiment, comprises the following steps,
S1:Add green emitting phosphor allotment encapsulation in LED lamp bead blue luminescence chip and red fluorescence powder;
S2:By glue, green emitting phosphor, red fluorescence powder in proportion 79%:20%:1% ratio is allocated;
S3:The light inspired by the LED after toning is subjected to enhancing feux rouges, blue and green light colour gamut PROCESS FOR TREATMENT, Huang is filtered Light, veiling glare;
S4:Last light is subjected to color proportioning, enhancing feux rouges, blue and green light colour gamut filtering veiling glare obtain the light of high colour gamut Line.
It is explained for all parts of the present embodiment:
1)Enhancing feux rouges, blue and green light colour gamut technique in S3 steps strengthen filtering technique for colour gamut;
2)Obtained light color gamut value in S4 steps is 100%.
Embodiment two
A kind of process of high colour gamut display backlight of the present embodiment, comprises the following steps,
S1:Add green emitting phosphor allotment encapsulation in LED lamp bead blue luminescence chip and red fluorescence powder;
S2:By glue, green emitting phosphor, red fluorescence powder in proportion 67.7%: 30%:2.3% ratio is allocated;
S3:The light inspired by the LED after toning is subjected to enhancing feux rouges, blue and green light colour gamut PROCESS FOR TREATMENT, Huang is filtered Light, veiling glare;
S4:Last light is subjected to color proportioning, enhancing feux rouges, blue and green light colour gamut filtering veiling glare obtain the light of high colour gamut Line.
Enhancing feux rouges, blue and green light colour gamut technique in S3 steps strengthen filtering technique for colour gamut.
Obtained light color gamut value in S4 steps is 115%
Embodiment three
A kind of process of high colour gamut display backlight of the present embodiment, comprises the following steps,
S1:Add green emitting phosphor allotment encapsulation in LED lamp bead blue luminescence chip and red fluorescence powder;
S2:By glue, green emitting phosphor, red fluorescence powder in proportion 73.5%:25%:1.5% ratio is allocated;
S3:The light inspired by the LED after toning is subjected to enhancing feux rouges, blue and green light colour gamut PROCESS FOR TREATMENT, Huang is filtered Light, veiling glare;
S4:Last light is subjected to color proportioning, enhancing feux rouges, blue and green light colour gamut filtering veiling glare obtain the light of high colour gamut Line.
It is explained for all parts of the present embodiment:
Enhancing feux rouges, blue and green light colour gamut technique in S3 steps strengthen filtering technique for colour gamut,
Obtained light color gamut value in S4 steps is 110%.
Such a technique of the present embodiment can reach 90%-115% color gamut value, meet the requirement of the high color gamut value of display screen industry, But it is more much lower than display screen industry OLED and RGB LED high colour gamut cost and also enhance protect eyes function, colour gamut Enhancing filtering process technique can realize on the upper and lower bright enhancement film of diffusion barrier, on upper bright enhancement film, add lustre to up and down on composite membrane including In the down polaroid of display screen, colour gamut enhancing filtering process technique can also be separately made individual colour gamut enhancing filter membrane and enter to exercise With being such as clipped between diffusion barrier and lower bright enhancement film, between lower bright enhancement film and upper bright enhancement film or above upper bright enhancement film.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (5)

1. a kind of process of high colour gamut display backlight, it is characterised in that:Comprise the following steps,
S1:Add green emitting phosphor allotment encapsulation in LED lamp bead blue luminescence chip and red fluorescence powder;
S2:By glue, green emitting phosphor, red fluorescence powder 67.7%-80% in proportion:19%-30%:0.9%-2.3% ratio is entered Row allotment.
2.S3:By the light progress enhancing feux rouges inspired by the LED after toning, the colour gamut PROCESS FOR TREATMENT of blue and green light, filter Fall gold-tinted, veiling glare;
S4:Last light is subjected to color proportioning, enhancing feux rouges, the colour gamut filtering veiling glare of blue and green light obtain high colour gamut Light.
3. a kind of process of high colour gamut display backlight according to claim 1, it is characterised in that:The S2 steps In glue:Green emitting phosphor:Red fluorescence powder ratio is 70%-75%:24%-28%:1%-2%.
4. a kind of high colour gamut display backlight process according to claim 1, it is characterised in that:In the S3 steps Enhancing feux rouges, blue and green light colour gamut technique for colour gamut strengthen filtering technique.
5. a kind of high colour gamut display backlight process according to claim 1, it is characterised in that:In the S4 steps Obtained light color gamut value be 90%-115%.
CN201611121988.2A 2016-12-08 2016-12-08 A kind of high colour gamut display backlight process Pending CN107065297A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110399620A (en) * 2018-04-24 2019-11-01 江西鸿利光电有限公司 A method of fluorescent glue proportion calculates suitable for LED encapsulation

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CN101699154A (en) * 2009-10-15 2010-04-28 深圳雷曼光电科技股份有限公司 LED white lamp and encapsulation method thereof
CN204083998U (en) * 2014-08-06 2015-01-07 厦门天马微电子有限公司 Side entrance back module and display unit
JP2015087527A (en) * 2013-10-30 2015-05-07 大日本印刷株式会社 High color gamut liquid crystal display device
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CN105137651A (en) * 2015-06-30 2015-12-09 武汉华星光电技术有限公司 Backlight module group and LCD
CN105355760A (en) * 2014-11-11 2016-02-24 易美芯光(北京)科技有限公司 Light emitting diode (LED) device characterized by wide color gamut display
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CN105529388A (en) * 2016-01-25 2016-04-27 深圳市聚飞光电股份有限公司 Implementation method for high-color-gamut white LED (Light Emitting Diode) using red phosphor
CN105702839A (en) * 2016-01-25 2016-06-22 深圳市聚飞光电股份有限公司 Method for preparing high-color-gamut white-light LED through employing green-light fluorescent powder
CN105810674A (en) * 2016-04-29 2016-07-27 广东晶科电子股份有限公司 Light emitting diode (LED) luminous device and backlight module employing same
CN106098907A (en) * 2016-06-13 2016-11-09 深圳市玲涛光电科技有限公司 High colour gamut phosphor combination, white light LEDs and preparation method thereof

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CN101699154A (en) * 2009-10-15 2010-04-28 深圳雷曼光电科技股份有限公司 LED white lamp and encapsulation method thereof
JP2015087527A (en) * 2013-10-30 2015-05-07 大日本印刷株式会社 High color gamut liquid crystal display device
CN204083998U (en) * 2014-08-06 2015-01-07 厦门天马微电子有限公司 Side entrance back module and display unit
CN105355760A (en) * 2014-11-11 2016-02-24 易美芯光(北京)科技有限公司 Light emitting diode (LED) device characterized by wide color gamut display
CN104810357A (en) * 2015-04-02 2015-07-29 信利半导体有限公司 Display, backlight module and LED light source device
CN105137651A (en) * 2015-06-30 2015-12-09 武汉华星光电技术有限公司 Backlight module group and LCD
CN105372873A (en) * 2015-11-10 2016-03-02 青岛海信电器股份有限公司 Backlight module and display device
CN105529388A (en) * 2016-01-25 2016-04-27 深圳市聚飞光电股份有限公司 Implementation method for high-color-gamut white LED (Light Emitting Diode) using red phosphor
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CN105810674A (en) * 2016-04-29 2016-07-27 广东晶科电子股份有限公司 Light emitting diode (LED) luminous device and backlight module employing same
CN106098907A (en) * 2016-06-13 2016-11-09 深圳市玲涛光电科技有限公司 High colour gamut phosphor combination, white light LEDs and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110399620A (en) * 2018-04-24 2019-11-01 江西鸿利光电有限公司 A method of fluorescent glue proportion calculates suitable for LED encapsulation

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