CN204439978U - A kind of liquid crystal module and liquid crystal indicator adopting quantum dot - Google Patents
A kind of liquid crystal module and liquid crystal indicator adopting quantum dot Download PDFInfo
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- CN204439978U CN204439978U CN201520159330.5U CN201520159330U CN204439978U CN 204439978 U CN204439978 U CN 204439978U CN 201520159330 U CN201520159330 U CN 201520159330U CN 204439978 U CN204439978 U CN 204439978U
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Abstract
The utility model proposes a kind of liquid crystal module and the liquid crystal indicator that adopt quantum dot, the problem that in the module being provided with quantum dot blooming piece, display brightness is low can be solved in prior art.Described liquid crystal module comprises back light system, quantum dot optics diaphragm system and liquid crystal panel, back light system comprises light source and reflector plate, quantum dot optics diaphragm system comprises the first water oxygen barrier layer, quantum dot layer, the second water oxygen barrier layer, the active liquid crystal layer of tool and quarter wave plate, and liquid crystal layer is between the second water oxygen barrier layer and quarter wave plate.The utility model adopts the liquid crystal module of quantum dot can realize high colour gamut, and owing to having set up the active liquid crystal layer of tool and quarter wave plate, can also realize brightening effect.
Description
Technical field
The utility model relates to field of liquid crystal display, has to relate to one and can realize high colour gamut, and can increase the quantum dot blooming piece of brightness and be provided with the liquid crystal module of this blooming piece.
Background technology
Colour gamut is a kind of method of encoding to color, also refers to the summation of the color that a technological system can produce.Common LCD liquid crystal display, with under CIE 1931 color space standard (being founded in 1931 by International Commission on Illumination (CIE)), its colour gamut only has about 72%, in order to realize the higher colour gamut of LCD liquid crystal display, use the quantum dot film of technology of quantum dots, colour gamut can be brought up to more than 85%, make color representation more saturated true to nature, Picture Showing more has visual impact.
In prior art, as shown in Figure 1, it comprises the water oxygen barrier layer 200 in incident side, the water oxygen barrier layer 300 in light emission side and the quantum dot layer 100 between water oxygen barrier layer 200,300 to quantum dot film sketch, namely by thin-film package quantum dot.Adopt the liquid crystal module of this quantum dot blooming piece, back light system, quantum dot blooming piece and liquid crystal panel is comprised successively along light direction, blue led light source is adopted for back light system, after blue light enters quantum dot blooming piece, inspire red green light and then red green light and blue light and be mixed into white backlight, realize high colour gamut, white backlight, by after the lower polaroid of liquid crystal panel, changes linearly polarized light into and shows for image.In prior art, this quantum dot film is provided with between liquid crystal panel and blue light back light system, because quantum dot layer and two-layer water oxygen barrier layer all have specific light transmission rate, can not make whole white backlights through, the lower polaroid of liquid crystal panel itself only allows the white backlight (accounting for 50% of mixed light total amount) of a polarization direction by becoming linearly polarized light simultaneously, liquid crystal panel display brightness so can be made to weaken, although namely the liquid crystal module of prior art can realize high colour gamut, but exist simultaneously and reduce liquid crystal panel display brightness, make Consumer's Experience not good.
The liquid crystal film group of quantum dot blooming piece is adopted in prior art described above, quantum dot blooming piece excites the white backlight of generation to be natural light, be provided with one deck polaroid (the lower polaroid namely comprised in liquid crystal panel) below liquid crystal panel body in liquid crystal panel simultaneously, its line polarisation that can pass through for making natural light change liquid crystal panel into, to realize liquid crystal display.Namely in prior art, the liquid crystal panel of liquid crystal film group is made up of upper polarizer, lower polaroid and the substrate of layer glass up and down between upper and lower polaroid, ITO transparency conducting layer, thin film transistor (TFT), body of liquid crystal, colored filter.
In addition, learn according to current chiral liquid-crystal compounds (being added with the liquid crystal material of chipal compounds with certain proportion) and the research of liquid crystal material, chiral liquid crystal compounds and cholesteric liquid crystal have extremely strong optical activity, namely make light rotate (to the left or to the right) angle in the opposite direction.
Based on upper, chiral liquid crystal compounds or cholesteric liquid crystal can be applied in the liquid crystal module of employing quantum dot blooming piece, design one can realize high colour gamut, liquid crystal module and the liquid crystal indicator of liquid crystal panel display brightness can be increased again, improve Consumer's Experience, become technical task urgently to be resolved hurrily.
Summary of the invention
The utility model proposes a kind of liquid crystal module and the liquid crystal indicator that adopt quantum dot, prior art quantum dot blooming piece can be solved and realize high colour gamut but the problem of liquid crystal panel display brightness can be weakened.
In order to reach above-mentioned technical purpose, the technical scheme of the quantum dot optics diaphragm system that the utility model proposes is, a kind of liquid crystal module adopting quantum dot, along light direction, comprise back light system successively, quantum dot optics diaphragm system and liquid crystal panel, described back light system comprises light source and reflector plate, described quantum dot optics diaphragm system comprises quantum dot layer, be positioned at the first water oxygen barrier layer of quantum dot layer incident side, be positioned at the second water oxygen barrier layer of quantum dot layer light emission side, be positioned at the active liquid crystal layer of tool and the quarter wave plate of described second water oxygen barrier layer light emission side, described liquid crystal layer is between described second water oxygen barrier layer and described quarter wave plate, wherein, described reflector plate and described first water oxygen barrier layer are oppositely arranged.
The utility model also proposed a kind of liquid crystal indicator, comprises above-mentioned liquid crystal module.
Compared with prior art, the utility model has the following advantages and good effect: the utility model adopts the liquid crystal module of quantum can realize high colour gamut, simultaneously because its quantum dot optics diaphragm system has set up the active liquid crystal layer of tool and quarter wave plate, and the first water oxygen barrier layer in reflector plate and described quantum dot diaphragm system is oppositely arranged, the light that in back light system, light source sends and quantum dot layer excite the light sent, after entering the active liquid crystal layer of tool, the light changing corresponding rotation direction into (if namely optical activity is the liquid crystal layer of dextrorotation, changes right-handed rotation into; Optical activity is left-handed liquid crystal layer, changes left-handed rotation into), then by quarter wave plate, the linearly polarized light that the lower polaroid transferring liquid crystal panel to can pass through, enters liquid crystal panel; Do not change the light of the contrary rotation direction of corresponding rotation direction into, cannot be reflected to reflector plate by it by liquid crystal layer, reflect in the generation of reflector plate place and produce the transformation of 1/2nd phase places, thus be converted to the light of corresponding rotation direction, linearly polarized light is transferred to again by quarter wave plate, and then by the lower polaroid of liquid crystal layer, because the backlight ejected can enter liquid crystal panel completely, thus can achieve brightening effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art quantum dot blooming piece;
The structural representation of quantum dot optics diaphragm system of Fig. 2 for adopting in the utility model embodiment liquid crystal module;
Fig. 3 is the structural representation of the utility model liquid crystal module embodiment;
Fig. 4 is the utility model liquid crystal module opticpath figure.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in more detail.
With reference to Fig. 2 and Fig. 3, the present embodiment adopts the liquid crystal module of quantum dot, along light direction, comprise back light system 1 successively, quantum dot optics diaphragm system 2 and liquid crystal panel 3, back light system 1 comprises light source 1.1 and reflector plate 1.2, quantum dot optics diaphragm system 2 comprises quantum dot layer 2.1, be positioned at the first water oxygen barrier layer 2.2 of quantum dot layer 2.1 incident side, be positioned at the second water oxygen barrier layer 2.3 of quantum dot layer 2.1 light emission side, be positioned at the active liquid crystal layer 2.4 of tool and the quarter wave plate 2.5 of the second water oxygen barrier layer 2.3 light emission side, liquid crystal layer 2.4 is between the second water oxygen barrier layer 2.3 and quarter wave plate 2.5, reflector plate 1.2 and the first water oxygen barrier layer 2.2 are oppositely arranged.
Particularly, the light source 1.1 of back light system 1 for generation of the light source of excitation quantum point layer, preferred blue light back light system, its reflector plate 1.2 can select prior art typical reflection sheet, and liquid crystal panel 3 can select normal liquid crystal panel; The effect of the first water oxygen barrier layer 2.2, second water oxygen barrier layer 2.3 is exclusion of water oxygen, improve diaphragm overall performance, quantum dot layer 2.1 produces exciting light for being excited, the light that exciting light can send with light source is mixed into white backlight, preferred use redness and green quantum dot, improve diaphragm colour gamut, the first water oxygen barrier layer 2.2, quantum dot layer 2.1, second water oxygen barrier layer 2.3 three can embody with the form of quantum dot diaphragm.The active liquid crystal layer 2.4 of tool can be the chiral liquid crystal compounds layer of dextrorotation optical activity or the cholesteric crystal layer of dextrorotation optical activity, or the chiral liquid crystal compounds layer of left-handed optical activity or the cholesteric crystal layer of left-handed optical activity.Wherein, chiral liquid crystal compounds layer for described in prior art by liquid crystal material and the mixing cured according to a certain percentage compound of chipal compounds, liquid crystal material can be common cholesteric liquid crystal or nematic liquid crystal etc., and purity preferably requires more than 99.7%; Chipal compounds, can select R1011, and purity preferably more than 99.5%, certainly, also can select other left-handed chipal compounds adjuvants.Liquid crystal layer 2.1 can be fitted with the second water oxygen barrier layer 2.3 and be designed, and also can be separated setting.
With reference to Fig. 4, for the optical activity of liquid crystal layer 2.4 for dextrorotation (being called for short dextrorotation liquid crystal layer), adopt the present embodiment liquid crystal module, realize high colour gamut and the principle of work of blast is: first, quantum dot layer 2.1 excites generation exciting light by the light source 1.1 of back light system 1, the light that exciting light and light source send can be mixed into white backlight, so that realize high colour gamut; Then, the white backlight of quantum dot layer 2.1 outgoing enters dextrorotation liquid crystal layer 2.4, change right-handed rotation II into, right-handed rotation II is by quarter wave plate 2.5, transfer the linearly polarized light III that liquid crystal panel 3 can receive to, enter liquid crystal panel 3, now need the light of quarter wave plate outgoing to have identical direction with the lower polaroid of liquid crystal panel; Do not change the left-handed rotation IV of right-handed rotation into, dextrorotation liquid crystal layer 2.4 cannot be passed through, by dextrorotation liquid crystal layer 2.4 back into backlight system 1, when reflector plate 1.2 reflects, produce the transformation of 1/2nd phase places, be converted to as right-handed rotation V, again by dextrorotation liquid crystal layer 2.4, linearly polarized light VI is transferred to again by quarter wave plate 2.5, enter liquid crystal panel 3, all can enter liquid crystal panel because quantum dot in this programme is excited the white backlight of rear generation and for showing image, therefore achieves brightening effect; If still there is the left-handed rotation not changing right-handed rotation into, continue repeated reflection process and be reflected into right-handed rotation, finally enter liquid crystal panel, further blast.
Further, the thickness range of liquid crystal layer 2.4 can be chosen as 20-600 μm, and now, the thickness of quantum dot layer 2.1 is 2-10 times of liquid crystal layer 2.4 thickness, preferably 5 times.
For quarter wave plate 2.5, it can chosen wavelength range be the broadband quarter wave plate of 350-750nm, also wavelength can be selected to be the Single wavelength quarter wave plate of arbitrary wavelength in 350-750nm, and such as common 550nm Single wavelength quarter wave plate or 400nm Single wavelength quarter wave plate, to reduce costs.
If through the sufficiently high words of degree of polarization of the linearly polarized light that quarter wave plate 2.5 is transformed into, then liquid crystal panel 3 can no longer arrange lower polaroid, only the light of quarter wave plate outgoing need be made to meet the polarization requirements of liquid crystal panel, namely liquid crystal panel 3 is made up of upper polarizer and upper strata glass substrate, lower floor's glass substrate, ITO transparency conducting layer, thin film transistor (TFT), liquid crystal panel body, colored filter and the glue frame be positioned at below upper polarized light, except no longer arranging lower polaroid, liquid crystal panel 3 other each layer parts above-mentioned still can carry out routine by prior art and arrange.Liquid crystal panel 3 no longer arranges lower polaroid, can simplify its structure, reduces material cost.
The present embodiment also proposed a kind of liquid crystal indicator, comprises liquid crystal module, and the concrete structure of described liquid crystal module adopts the embodiment of liquid crystal module and the description of accompanying drawing 2 to Fig. 4 of quantum dot see the utility model, do not repeat them here.
The scheme that the utility model provides is applicable to straight-down negative module simultaneously, and in the present embodiment, the side entering type structure of module can not as to restriction of the present utility model.
The above, it is only preferred embodiment of the present utility model, be not restriction the utility model being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solutions of the utility model content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (8)
1. one kind adopts the liquid crystal module of quantum dot, along light direction, comprise back light system successively, quantum dot optics diaphragm system and liquid crystal panel, described back light system comprises light source and reflector plate, it is characterized in that: described quantum dot optics diaphragm system comprises quantum dot layer, be positioned at the first water oxygen barrier layer of quantum dot layer incident side, be positioned at the second water oxygen barrier layer of quantum dot layer light emission side, be positioned at the active liquid crystal layer of tool and the quarter wave plate of described second water oxygen barrier layer light emission side, described liquid crystal layer is between described second water oxygen barrier layer and described quarter wave plate, wherein, described reflector plate and described first water oxygen barrier layer are oppositely arranged.
2. adopt the liquid crystal module of quantum dot according to claim 1, it is characterized in that: described liquid crystal layer is chiral liquid crystal compounds layer or cholesteric crystal layer.
3. adopt the liquid crystal module of quantum dot according to claim 2, it is characterized in that: the thickness range of described liquid crystal layer is 20-600 μm, the thickness of described quantum dot layer is 2-10 times of described thickness of liquid crystal layer.
4. adopt the liquid crystal module of quantum dot according to claim 1, it is characterized in that: the broadband quarter wave plate of described quarter wave plate to be wavelength coverage be 350-750nm or for wavelength be the Single wavelength quarter wave plate of arbitrary wavelength in 350-750nm.
5. adopt the liquid crystal module of quantum dot according to claim 1, it is characterized in that: described liquid crystal panel is made up of upper polarizer and the upper strata glass substrate be positioned at below upper polarized light, lower floor's glass substrate, ITO transparency conducting layer, thin film transistor (TFT), body of liquid crystal, colored filter.
6. adopt the liquid crystal module of quantum dot according to claim 1, it is characterized in that: the quantum dot of described quantum dot layer is red and/or green quantum dot.
7. adopt the liquid crystal module of quantum dot according to claim 1, it is characterized in that: the described light source of described back light system is blue led light source.
8. a liquid crystal indicator, is characterized in that: comprise the liquid crystal module according to any one of claim 1 to 7.
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| CN104950518A (en) * | 2015-07-21 | 2015-09-30 | 京东方科技集团股份有限公司 | Quantum dot film, preparation method thereof, and backlight module |
| CN105068312A (en) * | 2015-08-06 | 2015-11-18 | 青岛海信电器股份有限公司 | Light conversion film, preparing method thereof and liquid crystal display module |
| CN105527753A (en) * | 2016-02-14 | 2016-04-27 | 京东方科技集团股份有限公司 | Backlight unit, display device and illumination equipment |
| CN106626574A (en) * | 2016-12-05 | 2017-05-10 | 纳晶科技股份有限公司 | Organic barrier film, quantum dot film, backlight module and light emitting device |
| WO2017080105A1 (en) * | 2015-11-11 | 2017-05-18 | 深圳市华星光电技术有限公司 | Liquid crystal display |
| CN107420856A (en) * | 2017-07-11 | 2017-12-01 | 深圳市华星光电技术有限公司 | A kind of reflector plate and preparation method thereof, backlight module |
| CN108008573A (en) * | 2017-12-27 | 2018-05-08 | 惠州市华星光电技术有限公司 | Complex optics diaphragm, backlight module and liquid crystal display |
| WO2018094732A1 (en) * | 2016-11-28 | 2018-05-31 | 深圳市柔宇科技有限公司 | Polarizer and display |
| CN108241187A (en) * | 2016-12-23 | 2018-07-03 | 苏州星烁纳米科技有限公司 | Quantum dot polaroid, liquid crystal display panel and liquid crystal display device |
| CN109581733A (en) * | 2019-01-30 | 2019-04-05 | 京东方科技集团股份有限公司 | Display base plate and its manufacturing method, display device |
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| CN111752036A (en) * | 2019-03-28 | 2020-10-09 | 北京小米移动软件有限公司 | Quantum dot film, backlight module, liquid crystal display and manufacturing method of quantum dot film |
| CN112631015A (en) * | 2020-12-25 | 2021-04-09 | 京东方科技集团股份有限公司 | Composite polarizer, method for preparing composite polarizer and display device |
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| CN105068312A (en) * | 2015-08-06 | 2015-11-18 | 青岛海信电器股份有限公司 | Light conversion film, preparing method thereof and liquid crystal display module |
| US10101520B2 (en) | 2015-08-06 | 2018-10-16 | Hisense Electric Co., Ltd. | Light conversion film and preparation method thereof, and liquid crystal display device |
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| WO2017080105A1 (en) * | 2015-11-11 | 2017-05-18 | 深圳市华星光电技术有限公司 | Liquid crystal display |
| CN105527753A (en) * | 2016-02-14 | 2016-04-27 | 京东方科技集团股份有限公司 | Backlight unit, display device and illumination equipment |
| US10394101B2 (en) | 2016-02-14 | 2019-08-27 | Boe Technology Group Co., Ltd. | Backlight module, display apparatus and illumination apparatus |
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| CN106626574A (en) * | 2016-12-05 | 2017-05-10 | 纳晶科技股份有限公司 | Organic barrier film, quantum dot film, backlight module and light emitting device |
| CN108241187B (en) * | 2016-12-23 | 2024-03-15 | 苏州星烁纳米科技有限公司 | Quantum dot polaroid, liquid crystal panel and liquid crystal display device |
| CN108241187A (en) * | 2016-12-23 | 2018-07-03 | 苏州星烁纳米科技有限公司 | Quantum dot polaroid, liquid crystal display panel and liquid crystal display device |
| CN107420856A (en) * | 2017-07-11 | 2017-12-01 | 深圳市华星光电技术有限公司 | A kind of reflector plate and preparation method thereof, backlight module |
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Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense Video Technology Co.,Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE ELECTRIC Co.,Ltd. |