CN207799291U - A kind of high colour gamut illuminating module - Google Patents

A kind of high colour gamut illuminating module Download PDF

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Publication number
CN207799291U
CN207799291U CN201820080361.5U CN201820080361U CN207799291U CN 207799291 U CN207799291 U CN 207799291U CN 201820080361 U CN201820080361 U CN 201820080361U CN 207799291 U CN207799291 U CN 207799291U
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China
Prior art keywords
green
illuminating module
colour gamut
quantum dot
high colour
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CN201820080361.5U
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Chinese (zh)
Inventor
肖蔓达
明天
李沛
何睦
刘纪宏
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Wuhan Huacai photoelectric Co.,Ltd.
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Wuhan Baoli Liangcai Technology Co Ltd
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Abstract

The utility model provides a kind of high colour gamut illuminating module, and the high colour gamut illuminating module includes:Blue light source, Red phosphor layer and green light conversion film, the Red phosphor layer are set between the blue light source and the light path of the green light conversion film.The illuminating module of the utility model, not by the way of feux rouges and green light quantum point mixing, but the form for using green light conversion film and red light fluorescent powder layer to be acted on respectively the blue light that blue light source is sent out, and, red light fluorescent powder layer is arranged between green light conversion film and blue light source, since illuminating module is during luminous, the light that luminescence chip is sent out can be repeatedly round-trip between each film layer, and absorption of the red light fluorescent powder layer to the absorption of green light much smaller than traditional red quantum dot to green light, so the illuminating module of the utility model has high-luminous-efficiency, high colour gamut, the feature that performance is stablized.

Description

A kind of high colour gamut illuminating module
Technical field
The utility model is related to optics display fields, and in particular to a kind of high colour gamut illuminating module.
Background technology
Liquid crystal display is widely used in the fields such as TV, computer, mobile phone, game station.Traditional LCD is shown The white light that device is sent out mostlys come from the white LED backlight source in backlight module, this white light is sent out by LED blue chips Blue light, green emitting phosphor absorbs green light, red fluorescence powder that some blue light sends out and absorbs the red that sends out of some blue light Light three coloured light is mixed to get.However common green emitting phosphor, red light emitting phosphor spectrum show that half-peak breadth is wider, coloration is not It is enough pure and relatively low by luminous efficiency after liquid crystal.It is difficult to obtain high colour gamut, the display effect of high brightness.
In recent years, by CdS quantum dots substitute fluorescent powder be applied to backlight module obtain high colour gamut, high brightness side Method becomes the research emphasis in industry.Under the excitation of external light source, the CdS quantum dots of different-grain diameter can be sent out not The characteristic light of co-wavelength.And quantum dot has the feature of luminous efficiency height, glow peak half-peak width, generally mixes with green quantum Point and red quantum dot cure in glue obtains red green quantum dot diaphragm, and collocation uses blue-ray LED that can be obtained as backlight To the displaying scheme of higher colour gamut.However, using such scheme, the green quantum dot in red green quantum dot diaphragm absorbs blue light hair The green light gone out can be absorbed by red quantum dot, reduce green quantum dot luminous efficiency, be shone to reduce whole backlight module Efficiency.Meanwhile also can be different with the reliability of red quantum dot because of green quantum dot, cause follow-up green decaying fast or red Decay fast, generate larger color point shifts, influences the backlight module colour developing service life.
Therefore, existing this hybrid-type illuminating module based on red green quantum dot there is a problem of certain.
Utility model content
For the above-mentioned problems in the prior art, the utility model provides a kind of immiscible box-like illuminating module, The blue light that blue light source is sent out is carried out respectively using green quantum dot diaphragm (or green emitting phosphor film) and red light fluorescent powder layer Effect, also, red light fluorescent powder layer is arranged between green quantum dot diaphragm and blue light source, since red light fluorescent powder layer is right Absorption of the absorption of green light much smaller than traditional red quantum dot to green light, so the illuminating module of the utility model has high shine The feature that efficiency, high colour gamut, performance are stablized.
The technical solution that the utility model solves above-mentioned technical problem is as follows:
A kind of high colour gamut illuminating module, which is characterized in that the high colour gamut illuminating module includes:
Blue light source, Red phosphor layer and green light conversion film, the Red phosphor layer are set to the blue light light Between source and the light path of the green light conversion film, the green light conversion film includes the first basement membrane, green glow conversion layer and the second basement membrane, The green glow conversion layer is placed between first basement membrane and the second basement membrane.
Preferably, the green light conversion film is green quantum dot film or green emitting phosphor film, the green glow conversion layer are Green quantum dot layer or green phosphor layer.
Preferably, the blue light source is the blue light LED light source with blue chip.
Preferably, the Red phosphor layer is encapsulated in the form of packaging plastic in front of the blue light LED light source.
Preferably, the thickness of the green quantum dot layer is 10~150 μm, and first basement membrane is that have mist degree or without mist degree Water oxygen Obstruct membrane, thickness are 10~200 μm, and second basement membrane is that have mist degree or without mist degree water oxygen Obstruct membrane, thickness is 10~ 200μm。
Preferably, the illuminating module further includes light guide plate, and the blue light source and the Red phosphor layer are stacked Positioned at the side or rear of the light guide plate, the light emission direction of the blue light source is towards the light guide plate, the green quantum Point film is located in front of the light guide plate.
Preferably, the illuminating module further includes diffusion barrier, and the diffusion barrier is set in front of the green quantum dot film.
Preferably, the illuminating module further includes brightness enhancement film, and the brightness enhancement film is set in front of the green quantum dot film.
Preferably, the Red phosphor layer is KSF phosphor powder layers.
Technique effect
Compared with prior art, the illuminating module of the utility model is due to using green quantum dot diaphragm and red light fluorescent powder The form that layer respectively acts on the blue light that blue light source is sent out, also, red light fluorescent powder layer is arranged in green quantum dot Between diaphragm and blue light source, since illuminating module is during luminous, the light that luminescence chip is sent out can be in each film layer Between repeatedly round-trip, and absorption of the red light fluorescent powder layer to the absorption of green light much smaller than traditional red quantum dot to green light, so The illuminating module of the utility model has the characteristics that high-luminous-efficiency, high colour gamut, performance are stablized.
In addition, in preferred implementation, the utility model utilizes the green quantum dot layer collocation KSF fluorescence of half-peak width Bisque (half-peak breadth is most narrow in current all stable commercial red embedded photoluminescent materials), can provide optimum for display pannel Red-green-blue light, NTSC standard color extend to 110% or more, AdobeRGB colour gamuts covering 99% or more, become The perfect limit of nearly color displays.Green quantum dot film can adjust barrier film layer or quantum dot layer thickness simultaneously, flexibly control Integral thickness is suitable for different size backlight modules, is widely used.And the green quantum dot film of conventional red is compared, this collocation can carry The stability of high module whole lighting efficiency and quantum dot light emitting efficiency is increased module service life, and is substituted using KSF Red quantum dot acts on, and the comparable green quantum dot film of conventional red saves 20% or more cost.
Description of the drawings
Fig. 1 is the structure chart of the illuminating module in the utility model one embodiment
Fig. 2 is green emitting phosphor+common red fluorescence powder backlit display spectrum
Fig. 3 is green emitting phosphor+KSF fluorescent powder backlit display spectrum
Fig. 4 is green quantum dot+KSF fluorescent powders backlit display spectrum
Fig. 5 is green quantum dot+red quantum dot backlit display spectrum
Specific implementation mode
Hereinafter, the utility model is described in further detail in conjunction with the drawings and the specific embodiments, illustrated embodiment is only For explaining the utility model, it is not intended to limit the technical scope of the utility model.
Embodiment 1
Illuminating module in the utility model embodiment 1 is as shown in fig. 1 comprising, blue light source, red fluorescence powder Layer, light guide plate, green quantum dot layer, diffusion barrier, brightness enhancement film and liquid crystal display panel.Illuminating module in the present embodiment uses side Lighting system, blue light source are placed in light guide plate side, and Red phosphor layer is set to immediately ahead of blue light source, it is preferable that red Phosphor powder layer is fabricated to the form of LED packaging plastics, is directly encapsulated into blue light source surface.
Certainly, it should be appreciated by those skilled in the art that blue light source and Red phosphor layer can also be entered using back The mode of light.That is, blue light source and Red phosphor layer are arranged below light guide plate.Green quantum dot film is located on light guide plate Layer.In addition, it is contemplated that the actual needs of light source, brightness enhancement film can be arranged 2 layers in module, or can also add other structures.
In addition, it is necessary to explanation, although giving a kind of specific light guide plate, green quantum dot in the utility model The overlapped sequential of layer, diffusion barrier, brightness enhancement film and liquid crystal display panel, still, those skilled in the art can be as needed to above-mentioned The sequence of each layer is adjusted, or even the group wherein other than red light fluorescent powder layer and green quantum dot film is reduced after increasing Part.
The concrete structure of the members in the utility model is described below.
Green quantum dot film includes the first basement membrane, green quantum dot layer and the second basement membrane, and green quantum dot layer thickness is 100 μm, wherein comprising green quantum dot, green quantum dot wavelength is 530nm, half-peak breadth 22nm, green 360 μ of quantum dot film overall thickness m.It should be noted that it should be clear to a person skilled in the art that how to prepare green quantum dot layer, used by green quantum Point layer can also be different from the present embodiment, and the improvement of the utility model is for the restriction of structure feature rather than amount between each layer The preparation of son point layer.
Blue chip in the present embodiment is the blue chip that wavelength of transmitted light is 430nm~470nm.
Preferably, Red phosphor layer uses KSF Red phosphor layers.The KSF Red phosphor layers can directly note it is attached Above LED blue chips, or it is covered in above LED blue chips in the form of packaging plastic.
LED blue chips that can be by note with KSF Red phosphor layers are welded by 24 cun of liquid crystal display lamp bar drawings At lamp bar and it is mounted on display backlight side.Structure assembles liquid crystal display as shown in Figure 1, and connects external control circuit. Point bright display, color dot, brightness under white, red, green, blue picture using CA-310 color analysis instruments test display, And calculate color gamut value.
Embodiment 2
In the present embodiment, the essential structure of illuminating module is substantially the same manner as Example 1 comprising:Blue light source, red are glimmering Light bisque, light guide plate, diffusion barrier, brightness enhancement film and liquid crystal display panel.Only in the present embodiment, using green quantum dot layer It is to be substituted using green phosphor layer.
The color dot of backlit display in contrast test the present embodiment and embodiment 1, brightness, and calculate color gamut value.Such as figure It is the display spectrum under two kinds of backlights shown in 2/3.Table 1 show test data.Green quantum as can be seen from Table 1 The backlit display of point collocation KSF-LED has significant increase in colour gamut, brightness.
The display color dot tested under the different backlights of table 1, brightness, colour gamut
" common red, green fluorescence powder backlit display " refers to that red green fluorescence powder is coated on blue chip in table 1, with this Backlit display of the kind lamp bead as backlight configurations;" red, green quantum dot backlit display " refers to red green quantum dot mixing Quantum dot film is made, is placed in the display constructed in backlight module;" green emitting phosphor+KSF fluorescent powders backlit display " refers to It is the display using the illuminating module in the utility model embodiment 2 as light source;" green quantum dot+KSF fluorescent powder backlights Display " refers to the display as light source using the illuminating module in the utility model embodiment 1.
The above results show through illuminating module provided by the utility model in terms of the stability of colour gamut, brightness and light There is preferable promotion.Green quantum dot in module and KSF fluorescent powders because of properties such as its own half-peak width, luminous efficiency height, Display can be provided close to perfect visual experience.Green light that green quantum dot is sent out is avoided simultaneously by red light absorption, is led The shortcomings of luminous efficiency of cause reduces, stability of photoluminescence reduces.
Although the principles of the present invention are described in detail in the preferred embodiment above in conjunction with the utility model, It should be appreciated by those skilled in the art that above-described embodiment is only the explanation to the exemplary implementation of the utility model, and The non-restriction to the utility model scope.Details in embodiment does not constitute the limitation to the scope of the utility model, Without departing substantially from the utility model spirit and scope in the case of, any equivalent transformation based on technical solutions of the utility model, letter Single replacement etc. is obvious to be changed, and is all fallen within scope of protection of the utility model.

Claims (9)

1. a kind of high colour gamut illuminating module, which is characterized in that the high colour gamut illuminating module includes:
Blue light source, Red phosphor layer and green light conversion film, the Red phosphor layer be set to the blue light source with Between the light path of the green light conversion film, the green light conversion film includes the first basement membrane, green glow conversion layer and the second basement membrane, described Green glow conversion layer is placed between first basement membrane and the second basement membrane.
2. high colour gamut illuminating module according to claim 1, which is characterized in that the green light conversion film is green quantum dot Either the green emitting phosphor film green glow conversion layer is green quantum dot layer or green phosphor layer to film.
3. high colour gamut illuminating module according to claim 2, which is characterized in that the blue light source is with blue chip Blue light LED light source.
4. high colour gamut illuminating module according to claim 3, which is characterized in that the Red phosphor layer is with packaging plastic Form is encapsulated in front of the blue light LED light source.
5. high colour gamut illuminating module according to claim 2, which is characterized in that the thickness of the green quantum dot layer is 10 ~150 μm, first basement membrane is that have mist degree or without mist degree water oxygen Obstruct membrane, thickness is 10~200 μm, and second basement membrane is There is mist degree or without mist degree water oxygen Obstruct membrane, thickness is 10~200 μm.
6. high colour gamut illuminating module according to claim 4, which is characterized in that the illuminating module further includes light guide plate, The blue light source and the stacked side or rear for being located at the light guide plate of the Red phosphor layer, the blue light source Light emission direction is located at towards the light guide plate, the green quantum dot film in front of the light guide plate.
7. high colour gamut illuminating module according to claim 6, which is characterized in that the illuminating module further includes diffusion barrier, The diffusion barrier is set in front of the green quantum dot film.
8. high colour gamut illuminating module according to claim 6, which is characterized in that the illuminating module further includes brightness enhancement film, The brightness enhancement film is set in front of the green quantum dot film.
9. high colour gamut illuminating module according to claim 1, which is characterized in that the Red phosphor layer is KSF fluorescence Bisque.
CN201820080361.5U 2018-01-18 2018-01-18 A kind of high colour gamut illuminating module Active CN207799291U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109270728A (en) * 2018-11-30 2019-01-25 娄底市金鑫电子科技有限公司 The high-accuracy Intelligent touch all-in-one machine of Beidou satellite navigation based on quantum glory technology
CN109739053A (en) * 2019-02-28 2019-05-10 青岛海信电器股份有限公司 A kind of backlight module and display device
CN113097368A (en) * 2021-03-26 2021-07-09 湖北三峡夷丰光电科技有限公司 Production method of red fluorescent film
CN114265232A (en) * 2021-10-15 2022-04-01 深圳市中深光电股份有限公司 Blue light eyeshield module is prevented to highlight high colour gamut
CN114578613A (en) * 2020-11-30 2022-06-03 优美特创新材料股份有限公司 Backlight module containing fluorescent powder and quantum dots
CN114973927A (en) * 2022-06-09 2022-08-30 深圳创维-Rgb电子有限公司 Backlight module and display

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109270728A (en) * 2018-11-30 2019-01-25 娄底市金鑫电子科技有限公司 The high-accuracy Intelligent touch all-in-one machine of Beidou satellite navigation based on quantum glory technology
CN109270728B (en) * 2018-11-30 2024-02-02 娄底市金鑫电子科技有限公司 Beidou satellite navigation high-precision intelligent touch integrated machine based on quantum color light technology
CN109739053A (en) * 2019-02-28 2019-05-10 青岛海信电器股份有限公司 A kind of backlight module and display device
CN114578613A (en) * 2020-11-30 2022-06-03 优美特创新材料股份有限公司 Backlight module containing fluorescent powder and quantum dots
CN113097368A (en) * 2021-03-26 2021-07-09 湖北三峡夷丰光电科技有限公司 Production method of red fluorescent film
CN114265232A (en) * 2021-10-15 2022-04-01 深圳市中深光电股份有限公司 Blue light eyeshield module is prevented to highlight high colour gamut
CN114973927A (en) * 2022-06-09 2022-08-30 深圳创维-Rgb电子有限公司 Backlight module and display

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GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20220414

Address after: No. 158, baihequan West Road, Zhashan street, Caidian District, Wuhan City, Hubei Province 430108

Patentee after: Wuhan Huacai photoelectric Co.,Ltd.

Address before: 430075 floor 5, building B6, Guanggu biological city, No. 666, Gaoxin Avenue, Donghu Development Zone, Hongshan District, Wuhan City, Hubei Province

Patentee before: WUHAN POLYQOLOR TECHNOLOGY Ltd.

TR01 Transfer of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A high-gamut luminous module

Effective date of registration: 20230209

Granted publication date: 20180831

Pledgee: Wuhan area branch of Hubei pilot free trade zone of Bank of China Ltd.

Pledgor: Wuhan Huacai photoelectric Co.,Ltd.

Registration number: Y2023420000035

PE01 Entry into force of the registration of the contract for pledge of patent right