CN104698682A - Module and liquid crystal display device - Google Patents
Module and liquid crystal display device Download PDFInfo
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- CN104698682A CN104698682A CN201510122409.5A CN201510122409A CN104698682A CN 104698682 A CN104698682 A CN 104698682A CN 201510122409 A CN201510122409 A CN 201510122409A CN 104698682 A CN104698682 A CN 104698682A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL 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
- G02F1/00—Devices 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
- G02F1/01—Devices 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
- G02F1/13—Devices 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL 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
- G02F1/00—Devices 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
- G02F1/01—Devices 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
- G02F1/13—Devices 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL 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
- G02F1/00—Devices 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
- G02F1/01—Devices 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
- G02F1/13—Devices 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Polarising Elements (AREA)
Abstract
The invention provides a module which comprises a light source, an excitation layer, a reflector, a quarter phase retarder and a liquid crystal panel, wherein the reflector is opposite to the light-incoming face of the excitation layer, the quarter phase retarder is disposed on the light-outgoing side of the excitation layer, and the liquid crystal panel is disposed on the light-outgoing side of the quarter phase retarder. Due to the fact that the excitation layer contains quantum dot materials, the excitation layer can receive motivation light transmitted by the light source and generates excitation light, and the motivation light and the excitation light are mixed into white backlight. Due to the fact that composition contains optical rotation compounds and the reflector and the quarter phase retarder are disposed in the module, the while backlight generated by the module can be converted into white backlight with specific polarization directions, the light output by the lower polarization film below the liquid crystal panel and the light output by the quarter phase retarder are identical in polarization direction, the backlight generated in the module can be used for image display, and module brightness is increased.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of module and liquid crystal indicator.
Background technology
Along with the progress of technology, high colour gamut becomes the important need of liquid crystal indicator, and for improving the performance colour gamut of LCD TV, high colour gamut backlight technology is just becoming the emphasis of research in industry.The backlighting scheme that can realize high colour gamut in industry is at present: use blue-light excited quanta point material to produce white light, its colour gamut shown can reach more than 100%NTSC.
As shown in Figure 1, composition graphs 2 is known for the scheme of prior art, and module comprises backboard 101, reflector plate 102, light source 103, diffuser plate 104, quantum dot diaphragm 105, blooming piece 106, liquid crystal panel 107.Light source 103 to be arranged on backboard 101 and to lean out from the through hole that reflector plate 102 is arranged, the exciting light that light source 103 sends enters quantum dot diaphragm 105 by diffuser plate 104, quanta point material is provided with in quantum dot diaphragm 105, quanta point material can produce exciting light after being excited, exciting light and above-mentioned exciting light can be mixed to form white backlight, make module can be used as image display.
Incidence surface due to liquid crystal panel is provided with lower polaroid, and above-mentioned white backlight is natural light, therefore only having conforms to the lower polaroid polarization direction of liquid crystal panel send out white backlight can by lower polaroid to be used as image display, the white backlight being 90 degree of angles with the polarization direction of polaroid can be absorbed by above-mentioned lower polaroid, cause the loss of backlight, make module brightness on the low side.
Summary of the invention
The structure providing a kind of module of the present invention, at generation white backlight simultaneously, can improve the utilization factor of backlight, makes more backlight can be used as image display.
The invention provides a kind of module, light source, for generation of exciting light; Excitation layer, excitation layer comprises: the active compound of tool, quanta point material, described excitation layer also generates the white backlight with circular polarization characteristics for receiving described exciting light, wherein, and the active compound of described tool and the blended setting of described quanta point material; Reflector plate, is oppositely arranged with the incident side of described excitation layer, for reflecting the reflected light reflected by described excitation layer, and enters described excitation layer after making described reflected light produce 1/2nd phase transitions; / 4th phase delay chips, are arranged on the light emission side of described excitation layer, for receiving the white backlight with circular polarization characteristics that described excitation layer produces, and are translated into the white backlight with linear polarization characteristic; Liquid crystal panel, be arranged on the light emission side of described 1/4th phase delay chips, described liquid crystal panel is for having the white backlight of linear polarization characteristic described in receiving, to show image, wherein, the lower polaroid of described liquid crystal panel has identical polarization direction with the described white backlight with linear polarization characteristic.
Present invention also offers a kind of liquid crystal indicator, comprise above-mentioned module.
The invention provides a kind of module, comprise: light source, excitation layer, reflector plate, 1/4th phase delay chips, liquid crystal panel, wherein, the incidence surface of sheet emitting and excitation layer is oppositely arranged, / 4th phase delay chips are arranged on the light emission side of excitation layer, and liquid crystal panel is arranged on the light emission side of 1/4th phase delay chips.Light source produces exciting light can enter the quanta point material generation exciting light that excitation layer excites the inside, exciting light and exciting light can be mixed into white backlight, simultaneously because excitation layer comprises the active compound of tool, the light of outgoing from optically active compounds is former polarized light, so in excitation layer, there is the white backlight of identical optically-active state can be transmitted through 1/4th phase delay chips from excitation layer with the active compound of tool, otherwise, can be reflected and be transmitted to reflector plate, can secondary reflection be there is in the light being reflected back toward reflector plate at reflector plate place, in secondary reflection process, the transformation of 1/2nd phase places can be there is in the above-mentioned light being reflected back toward reflecting piece, thus it is identical with the optically-active state of the active compound of the tool in excitation layer, therefore 1/4th phase delay chips can be transmitted through from excitation layer, from be provided with optically active substance excitation layer export white backlight for having the circularly polarized light of certain optically-active state (such as: dextrorotation or left-handed), / 4th phase delay chips can change the above-mentioned white backlight with circular polarization characteristics the white backlight with linear polarization characteristic into, because the lower polaroid of liquid crystal panel has identical polarization direction with the described white backlight with linear polarization characteristic, therefore the white backlight with linear polarization characteristic of 1/4th phase delay chip outgoing can enter liquid crystal panel and shows for image.Thus, in technical scheme provided by the invention, the white backlight of being excited to produce can enter liquid crystal panel and show for image, makes module have higher display brightness.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of module of the prior art;
Fig. 2 is the zoomed-in view that Fig. 1 plants a-quadrant;
Fig. 3 is the structural representation of the module in embodiment one;
Fig. 4 is the zoomed-in view that Fig. 3 plants B region;
Fig. 5 is the structural representation of the module in embodiment two;
Fig. 6 is the zoomed-in view that Fig. 5 plants C region;
Fig. 7 is the structural representation of the module in embodiment three;
Fig. 8 is the zoomed-in view that Fig. 7 plants D region.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it will be appreciated that, term " on ", the orientation of the instruction such as D score or position relationship be based on method shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In an embodiment of the present invention, provide a kind of module, this module is provided with: light source, for generation of exciting light; Excitation layer, excitation layer comprises: the active compound of tool, quanta point material, described excitation layer also generates the white backlight with circular polarization characteristics for receiving described exciting light, wherein, and the active compound of described tool and the blended setting of described quanta point material; Reflector plate, is oppositely arranged with the incident side of described excitation layer, for reflecting the reflected light reflected by described excitation layer, and makes described reflected light produce 1/2nd phase transitions; / 4th phase delay chips, are arranged on the light emission side of described excitation layer, for receiving the white backlight with circular polarization characteristics that described excitation layer produces, and are translated into the white backlight with linear polarization characteristic; Liquid crystal panel, be arranged on the light emission side of described 1/4th phase delay chips, described liquid crystal panel is for having the white backlight of linear polarization characteristic described in receiving, to show image, wherein, the lower polaroid of described liquid crystal panel has identical polarization direction with the described white backlight with linear polarization characteristic.
Light source is that the light that light source sends is exciting light, and exciting light refers to the light for excitation quantum point material by the light source that the driving of drive current emits beam in module.
Excitation layer comprises: the active compound of tool, quanta point material, and quantum material is for excited target optical excitation and produces the material of exciting light.The active compound of tool refers to it can is the compound having specific molecular arrangement mode and only allow the ght transmission of specific optically-active state (such as: left-handed or dextrorotation), and the compound with optically-active characteristic can be: the composition of chipal compounds and liquid crystal.Also can be cholesteric liquid crystal, can also be the composition of chipal compounds and cholesteric liquid crystal.The compound of optical activity and quanta point material are blended settings in the inventive solutions, this arrangement mode exciting advantageously in quanta point material, and the compound optically-active characteristic better utilizing optical activity.
At the compound with optically-active characteristic be: in the embodiment of the composition of chipal compounds and liquid crystal, excitation layer comprises: the composition of the blended formation of liquid crystal, chipal compounds, quanta point material, in the composition, comprise: the liquid crystal of 10-80 weight portion, the chipal compounds of 15-85 weight portion, the quanta point material of 3-120 weight portion.The scope of above-mentioned each component is the combination of each component that can realize white backlight, and the difference of each component ratio can cause white backlight with acceptable colour cast.
Above-mentioned module, comprise: light source, excitation layer, reflector plate, 1/4th phase delay chips, liquid crystal panel, wherein, the incidence surface of sheet emitting and excitation layer is oppositely arranged, / 4th phase delay chips are arranged on the light emission side of excitation layer, and liquid crystal panel is arranged on the light emission side of 1/4th phase delay chips.Light source produces exciting light can enter the quanta point material generation exciting light that excitation layer excites the inside, exciting light and exciting light can be mixed into white backlight, simultaneously because excitation layer comprises the active compound of tool, the light of outgoing from optically active compounds is former polarized light, so in excitation layer, there is the white backlight of identical optically-active state can be transmitted through 1/4th phase delay chips from excitation layer with the active compound of tool, otherwise, can be reflected and be transmitted to reflector plate, can secondary reflection be there is in the light being reflected back toward reflector plate at reflector plate place, in secondary reflection process, the transformation of 1/2nd phase places can be there is in the above-mentioned light being reflected back toward reflecting piece, thus it is identical with the optically-active state of the active compound of the tool in excitation layer, therefore 1/4th phase delay chips can be transmitted through from excitation layer, from be provided with optically active substance excitation layer export white backlight for having the circularly polarized light of certain optically-active state (such as: dextrorotation or left-handed), / 4th phase delay chips can change the above-mentioned white backlight with circular polarization characteristics the white backlight with linear polarization characteristic into, because the lower polaroid of liquid crystal panel has identical polarization direction with the described white backlight with linear polarization characteristic, therefore the white backlight with linear polarization characteristic of 1/4th phase delay chip outgoing can enter liquid crystal panel and shows for image.Thus, in technical scheme provided by the invention, the white backlight of being excited to produce all can enter liquid crystal panel and show for image, makes module have higher display brightness.
Embodiment one
As shown in Figure 3, the present embodiment provides a kind of straight-down negative module, composition graphs 4 is known, this module is disposed with backboard 201 from bottom to top, the reflector plate 202 be arranged on backboard, be arranged on backboard 201 and the light source 203, the diffuser plate 204 that lean out from reflector plate 202, be provided with a mixed light space between diffuser plate 204 and reflector plate 202, optical substrate 205, excitation layer 206,1/4th phase delay chip 207, blooming piece 208 is disposed with, liquid crystal panel 209 in the light emission side of diffuser plate 204.Wherein, with the lower polaroid of liquid crystal panel 209, there is identical polarization direction by the light of 1/4th phase delay chip 207 outgoing.
Light source 203 is for sending exciting light, and exciting light is by entering excitation layer after diffuser plate 204, optical substrate 205 in the present embodiment, and the quanta point material in excitation layer is excited to generate exciting light.Exciting light and exciting light can be mixed into white backlight.
Particularly, excitation layer is the composition of liquid crystal, right-handed chirality compound, red quantum point, green quantum dot, therefore in the white backlight mixed at exciting light and exciting light, the light meeting dextrorotation characteristic can shine 1/4th phase delay chips, and be converted to linearly polarized light by 1/4th phase delay chips, and then pass through the lower polaroid of liquid crystal panel 209, for realizing the display of image; The light not meeting dextrorotation characteristic can be reflected onto reflector plate 202, and there is secondary reflection at reflector plate 202 place, in secondary reflection, light can produce the transformation of 1/2nd phase places, become right-handed rotation, therefore this some light also transmissive go out excitation layer 206, and be converted to linearly polarized light by 1/4th phase delay chips, and then by the lower polaroid of liquid crystal panel 209, for realizing the display of image, improve the brightness of module.
In the present embodiment, diffuser plate 204 and optical substrate 205 can unite two into one.
Light source 203 is blue led in the present embodiment, and excitation layer comprises liquid crystal, right-handed chirality compound, quanta point material, and specifically, excitation layer also comprises ultra-violet curing agent and ultraviolet absorber, and quanta point material comprises red quantum point and green quantum dot.The component of excitation layer can be: the liquid crystal of 10-80 weight portion, the chipal compounds of 15-85 weight portion, the red quantum point of 3-60 weight portion, the green quantum dot of 3-60 weight portion; Can also comprise: the ultra-violet curing agent of 3-45 weight portion, the ultraviolet absorber of 3-40 part.Each component is in the present embodiment as shown in table 1.
Table 1 (unit: weight portion)
| Combination one | Combination two | Combination three | Combination four | |
| Liquid crystal | 10 | 10 | 80 | 30 |
| Right-handed chirality compound | 15 | 15 | 85 | 30 |
| Red quantum point | 2 | 3 | 60 | 10 |
| Green quantum dot | 1 | 3 | 60 | 15 |
| Ultraviolet absorber | - | 3 | 45 | 10 |
| Ultra-violet curing agent | - | 3 | 40 | 5 |
As known from Table 1, the assembled scheme of the excitation layer in the present embodiment has multiple, and wherein, combination one is: the component of excitation layer comprises the liquid crystal of 10 weight portions, the chipal compounds of 15 weight portions, the red quantum point of 2 weight portions, the green quantum dot of 1 weight portion.
Combination two is: the component of excitation layer comprises the liquid crystal of 10 weight portions, the chipal compounds of 15 weight portions, the red quantum point of 3 weight portions, the green quantum dot of 3 weight portions, the ultra-violet curing agent of 3 weight portions, the ultraviolet absorber of 3 weight portions.
Combination three is wherein: the component of excitation layer comprises the liquid crystal of 80 weight portions, the chipal compounds of 85 weight portions, the red quantum point of 60 weight portions, the green quantum dot of 60 weight portions, the ultra-violet curing agent of 45 weight portions, the ultraviolet absorber of 40 weight portions.
Preferred combination four is: the liquid crystal comprising 30 weight portions, the chipal compounds of 30 weight portions, the red quantum point of 10 weight portions, the green quantum dot of 15 weight portions, the ultra-violet curing agent of 10 weight portions, the ultraviolet absorber of 5 weight portions.
Specifically, in one embodiment, preferably liquid crystal can be cholesteric liquid crystal, preferably, for SLC-1717, chipal compounds is R1011, and red quantum point is CdSe, InP (7nm) particle, green quantum dot is CdSe, InP (3nm) ultraviolet absorber is I651, and ultra-violet curing agent is four group crosslinking chemicals.Those skilled in the art are known: the particle diameter of red quantum point is about 7nm, preferred 7nm; The particle diameter of green quantum dot is about 2-4nm, preferred 3nm.
Embodiment two
As shown in Figure 5, the present embodiment provides a kind of side entering type module, composition graphs 6 is known, and this module comprises backboard 301, is arranged on the reflector plate 302 on backboard, backboard 301 is provided with the flanging upwards turned down, described light source 303 is arranged on inside described flanging, and the top of reflector plate 302 is provided with light guide plate 304, and a side of light guide plate 304 and light source 303 are oppositely arranged, to receive the exciting light that light source sends, and above-mentioned exciting light is transferred to optical substrate 305.The top of light guide plate 304 is provided with optical substrate 305, the top of optical substrate 305 is disposed with excitation layer 306,1/4th phase delay chip 307, blooming piece 308, liquid crystal panel 309.Wherein, with the lower polaroid of liquid crystal panel 309, there is identical polarization direction by the light of 1/4th phase delay chip 307 outgoing.
Light source 303 is for sending exciting light, and exciting light enters light guide plate 304 by the incidence surface of light guide plate, and is transmitted through excitation layer 306 further by optical substrate 305, and excitation layer 306 is excited to produce exciting light.Exciting light and exciting light can be mixed into white backlight.
Particularly, excitation layer is cholesteric liquid crystal, right-handed chirality compound, the composition of red quantum point, therefore in the white backlight mixed at exciting light and exciting light, the light meeting dextrorotation characteristic can shine 1/4th phase delay chips, and be converted to linearly polarized light by 1/4th phase delay chips, and then pass through the lower polaroid of liquid crystal panel 309, for realizing the display of image, the light not meeting dextrorotation characteristic can be reflected onto reflector plate 302, and there is secondary reflection at reflector plate 302 place, in secondary reflection, light can produce the transformation of 1/2nd phase places, become right-handed rotation, therefore this some light also transmissive go out excitation layer 306, and be converted to linearly polarized light by 1/4th phase delay chips, and then pass through the lower polaroid of liquid crystal panel 309, for realizing the display of image, improve the brightness of module.
In the present embodiment, light guide plate 304 and optical substrate 305 can unite two into one.
In the present embodiment, light source 303 is blue led and green OLED, and excitation layer comprises cholesteric liquid crystal, right-handed chirality compound, quanta point material, and specifically, excitation layer also comprises ultra-violet curing agent and ultraviolet absorber, and quanta point material comprises red quantum point.The component of described excitation layer 306 is the liquid crystal of 10-80 weight portion, the chipal compounds of 15-85 weight portion, the red quantum point of 3-120 weight portion; Can comprise in addition: the ultra-violet curing agent of 3-45 weight portion, the ultraviolet absorber of 3-40 part.Each component is in the present embodiment as shown in table 2.
Table 2 (unit: weight portion)
| Combination one | Combination two | Combination three | Combination four | |
| Cholesteric liquid crystal | 40 | 10 | 80 | 30 |
| Right-handed chirality compound | 50 | 15 | 85 | 30 |
| Red quantum point | 60 | 3 | 80 | 45 |
| Ultraviolet absorber | - | 3 | 45 | 10 |
| Ultra-violet curing agent | - | 3 | 40 | 5 |
As shown in Table 2, the assembled scheme of the excitation layer in the present embodiment has multiple, and wherein, combination one is: excitation layer comprises: the cholesteric liquid crystal of 40 weight portions, the right-handed chirality compound of 50 weight portions, the red quantum point of 60 weight portions;
Combination two is: the cholesteric liquid crystal of 10 weight portions, the right-handed chirality compound of 15 weight portions, the red quantum point of 3 weight portions, the ultra-violet curing agent of 3 weight portions, the ultraviolet absorber of 3 weight portions;
Combination three is: the cholesteric liquid crystal of 80 weight portions, the right-handed chirality compound of 85 weight portions, the red quantum point of 80 weight portions, the ultra-violet curing agent of 45 weight portions, the ultraviolet absorber of 40 weight portions;
Preferred combination four is: the cholesteric liquid crystal of 30 weight portions, the right-handed chirality compound of 30 weight portions, the red quantum point of 45 weight portions, the ultra-violet curing agent of 10 weight portions, the ultraviolet absorber of 5 weight portions.
Embodiment three
As shown in Figure 6, present embodiments provide a kind of side entering type module, composition graphs 6 is known, this module comprises backboard 401, backboard 401 is provided with the flanging 4011 upwards turned down, and the inner side of flanging 4011 is provided with reflector plate 404, and light source 403 is arranged on the inner side of above-mentioned flanging, and lean out described reflector plate 404, on described backboard, be disposed with reflector plate 402, light guide plate 408, blooming piece 409.Optical substrate 405, excitation layer 406,1/4th phase delay chip 407, liquid crystal panel 410 is provided with between the incidence surface and described light source 403 of described light guide plate 408.Optical substrate 405 between light source 403 and excitation layer 406, for carrying excitation layer 406; / 4th phase delay chips 407 are arranged between the incidence surface of excitation layer 406 and light guide plate 408, preferably, fit arrange with excitation layer 406.Wherein, with the lower polaroid of liquid crystal panel 410, there is identical polarization direction by the light of 1/4th phase delay chip 407 outgoing.
Light source 403 is for sending exciting light, and exciting light enters excitation layer 306 by optical substrate 405, and excitation layer 306 is excited to produce exciting light.Exciting light and exciting light can be mixed into white backlight.
Particularly, excitation layer is cholesteric liquid crystal, left-handed chipal compounds, the composition of green quantum dot, therefore in the white backlight mixed at exciting light and exciting light, the light meeting left-handed characteristic is converted to linearly polarized light by 1/4th phase delay chips, and shine the incidence surface of light guide plate 408, and by light guide plate 408, blooming piece 409 enters liquid crystal panel 410, and pass through the lower polaroid of liquid crystal panel 410, for realizing the display of image, the light not meeting left-handed characteristic can be reflected onto reflector plate 404, and there is secondary reflection at reflector plate 404 place, in secondary reflection, light can produce the transformation of 1/2nd phase places, become left-handed rotation, therefore this some light also transmissive go out excitation layer 406, and be converted to linearly polarized light by 1/4th phase delay chips, and then enter liquid crystal panel 410 by light guide plate 408, can by the lower polaroid of liquid crystal panel 410 in liquid crystal panel 410, for realizing the display of image, improve the brightness of module.
In the present embodiment, reflector plate 404 also can be the reflective functional layer be arranged on flanging, only need realize the reflection to the light reflected in excitation layer.
In the present embodiment, light source is blue-ray LED and red-light LED, and excitation layer comprises cholesteric liquid crystal, left-handed chipal compounds, quanta point material, and specifically, excitation layer also comprises ultra-violet curing agent and ultraviolet absorber, and quanta point material comprises green quantum dot.The component of described excitation layer 409 is: the liquid crystal of 10-80 weight portion, the chipal compounds of 15-85 weight portion, the green quantum dot of 3-120 weight portion; The ultra-violet curing agent of 3-45 weight portion can be comprised in addition, the ultraviolet absorber of 3-40 part.In the present embodiment, each component of excitation layer is as shown in table 3,
Table 3 (unit: weight portion)
| Combination one | Combination two | Combination three | Combination four | |
| Cholesteric liquid crystal | 80 | 10 | 80 | 30 |
| Left-handed chipal compounds | 85 | 15 | 85 | 30 |
| Red quantum point | 120 | 3 | 80 | 45 |
| Ultraviolet absorber | - | 3 | 45 | 10 |
| Ultra-violet curing agent | - | 3 | 40 | 5 |
As shown in Table 3, the assembled scheme of the excitation layer in the present embodiment has multiple, and wherein, combination one is: the liquid crystal of 80 weight portions, the chipal compounds of 85 weight portions, the green quantum dot of 120 weight portions.
Combination two is: the liquid crystal of 10 weight portions, the chipal compounds of 15 weight portions, the green quantum dot of 3 weight portions, the ultra-violet curing agent of 3 weight portions, the ultraviolet absorber of 3 weight portions.
Combination three is: the liquid crystal of 80 weight portions, the chipal compounds of 85 weight portions, the green quantum dot of 80 weight portions, the ultra-violet curing agent of 45 weight portions, the ultraviolet absorber of 40 weight portions.
Wherein preferably combining four is: the liquid crystal of 30 weight portions, the chipal compounds of 30 weight portions, the green quantum dot of 45 weight portions, the ultra-violet curing agent of 10 weight portions, the ultraviolet absorber of 5 weight portions.
The present embodiment additionally provides a kind of liquid crystal indicator, comprises above-mentioned any module.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (12)
1. a module, is characterized in that, comprises
Light source, for generation of exciting light;
Excitation layer, comprising: the active compound of tool, quanta point material, and described excitation layer also generates the white backlight with circular polarization characteristics for receiving described exciting light, wherein, and the active compound of described tool and the blended setting of described quanta point material;
Reflector plate, is oppositely arranged with the incident side of described excitation layer, for reflecting the reflected light reflected by described excitation layer, and enters described excitation layer after making described reflected light produce 1/2nd phase transitions;
/ 4th phase delay chips, are arranged on the light emission side of described excitation layer, for receiving the white backlight with circular polarization characteristics that described excitation layer produces, and are translated into the white backlight with linear polarization characteristic;
Liquid crystal panel, be arranged on the light emission side of described 1/4th phase delay chips, described liquid crystal panel is for having the white backlight of linear polarization characteristic described in receiving, to show image, wherein, the lower polaroid of described liquid crystal panel has identical polarization direction with the described white backlight with linear polarization characteristic.
2. module as claimed in claim 1, it is characterized in that, the active compound of described tool is: the composition of liquid crystal and chipal compounds.
3. module as claimed in claim 2, it is characterized in that, described excitation layer comprises: the liquid crystal of 10-80 weight portion, the chipal compounds of 15-85 weight portion, the quanta point material of 3-120 weight portion.
4. module as claimed in claim 3, it is characterized in that, described quanta point material comprises red quantum point and green quantum dot;
Described excitation layer comprises: the liquid crystal of 10-80 weight portion, the chipal compounds of 15-85 weight portion, the quanta point material of 3-60 weight portion, the green quantum dot of 3-60 weight portion, the ultra-violet curing agent of 3-45 weight portion, the ultraviolet absorber of 3-40 part.
5. module as claimed in claim 4, it is characterized in that, the component of described excitation layer is: the liquid crystal of 30 weight portions, the chipal compounds of 30 weight portions, the ultra-violet curing agent of 10 weight portions, the red quantum point of 10 weight portions, the green quantum dot of 15 weight portions, the ultraviolet absorber of 5 weight portions.
6. module as claimed in claim 3, it is characterized in that, described quanta point material is red quantum point;
The component of described excitation layer comprises: the liquid crystal of 10-80 weight portion, the chipal compounds of 15-85 weight portion, the red quantum point of 3-80 weight portion, the ultra-violet curing agent of 3-45 weight portion, the ultraviolet absorber of 3-40 part.
7. module as claimed in claim 6, it is characterized in that, the component of described excitation layer is: the liquid crystal of 30 weight portions, the chipal compounds of 30 weight portions, the ultra-violet curing agent of 10 weight portions, the red quantum point of 45 weight portions, the ultraviolet absorber of 5 weight portions.
8. module as claimed in claim 3, it is characterized in that, described quanta point material is green quantum dot;
The component of described excitation layer comprises: the liquid crystal of 10-80 weight portion, the chipal compounds of 15-85 weight portion, the green quantum dot of 3-80 weight portion, the ultra-violet curing agent of 3-45 weight portion, the ultraviolet absorber of 3-40 part.
9. module as claimed in claim 8, it is characterized in that, the component of described excitation layer is: the liquid crystal of 30 weight portions, the chipal compounds of 30 weight portions, the ultra-violet curing agent of 10 weight portions, the green quantum dot of 45 weight portions, the ultraviolet absorber of 5 weight portions.
10. module as claimed in claim 1, it is characterized in that, the active compound of described tool is: cholesteric liquid crystal.
11. modules as claimed in claim 1, it is characterized in that, described module also comprises:
Optical substrate, described optical substrate, between described reflector plate and described excitation layer, is arranged on the incident side of excitation layer, for carrying described excitation layer, and make described exciting light through.
12. 1 kinds of liquid crystal indicators, is characterized in that, comprise the module described in claim 1-11 any one.
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| CN104698682B (en) | 2017-12-22 |
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