CN206649254U - PDLC display panels and PDLC display devices - Google Patents
PDLC display panels and PDLC display devices Download PDFInfo
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- CN206649254U CN206649254U CN201720419779.XU CN201720419779U CN206649254U CN 206649254 U CN206649254 U CN 206649254U CN 201720419779 U CN201720419779 U CN 201720419779U CN 206649254 U CN206649254 U CN 206649254U
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- pdlc display
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Abstract
The utility model discloses a kind of PDLC display panels and PDLC display devices.A kind of PDLC display panels, it includes the upper substrate being oppositely arranged and infrabasal plate, the conductive layer being separately positioned on the upside of the upper substrate downside and the infrabasal plate, the polymer dispersed liquid crystal layer between the upper substrate and infrabasal plate；Also include being separately positioned on the AR films on the upside of the upper substrate and on the downside of the infrabasal plate.The PDLC display panels plate the high upper and lower base plate of high-performance AR films by using outer surface, suppress surface reflection, reduce the light loss of substrate, improve itself transmitance, also the utilization rate of light is improved, and then the ON state transmitance of display is lifted, set AR films to improve transmitance to a greater degree compared to only unilateral, make to become apparent from through the material object that glass is seen under pellucidity.
Description
Technical field
PDLC display technology fields have been the utility model is related to, have been shown more particularly to a kind of PDLC display panels and PDLC
Showing device.
Background technology
For traditional LCD displays part, polymer-dispersed liquid crystal（PDLC）Display has lot of advantages, example
Such as be not required to polarizer, brightness is high, visual angle is wide, is not required to the advantages that liquid crystal aligning layer, therefore preparing softness, high brightness, wide viewing angle
Had broad application prospects in terms of large-area liquid crystal display.
Usually, the contrast of PDLC displays is improved mainly by increasing ON state transmitance, reducing OFF state transmitance
To realize.And reduce OFF state transmitance mainly has two approach to realize：First, the saturating of dark-state is reduced by increasing thickness
Cross rate to realize, but PDLC driving voltage increases also with the increase of thickness；2nd, improve preparation technology, obtain whole
The PDLC of body excellent performance, e.g., control droplet radius is in λ/5, and volume factor is 0.5 so that and scattering is maximum, and what this was related to
Manufacture craft is more complicated, and the focus of current PDLC researchs.And ON state transmitance is improved in addition to improving PDLC material, it is main
To be realized by increasing driving voltage.But either reducing OFF state transmitance still increases ON state transmitance, processing procedure is complicated
And cost is high, is unfavorable for industrialization, influences PDLC application.
Utility model content
Technical problem to be solved in the utility model there is provided a kind of PDLC display panels and PDLC display devices.Institute
The high upper and lower base plate that PDLC display panels plate high-performance AR films by using outer surface is stated, suppresses surface reflection, reduces substrate
Light loss, improve itself transmitance, also improve light utilization rate, and then lifted display ON state transmitance, compared to only
One side sets AR films to improve transmitance to a greater degree, makes to become apparent from through the material object that glass is seen under pellucidity.
Technical problem to be solved in the utility model is achieved by the following technical programs：
A kind of PDLC display panels, it includes the upper substrate being oppositely arranged and infrabasal plate, is separately positioned on the upper substrate
Conductive layer on the upside of downside and the infrabasal plate, the polymer dispersed liquid crystal layer between the upper substrate and infrabasal plate；Also
Including the AR films being separately positioned on the upside of the upper substrate and on the downside of the infrabasal plate.
One kind as PDLC display panels provided by the utility model is improved, the upper and lower interface light path of each AR films
Difference is 200 ~ 380nm.
One kind as PDLC display panels provided by the utility model is improved, the thickness of each AR films for 160 ~
300nm。
One kind as PDLC display panels provided by the utility model is improved, and the refractive index of each AR films is between institute
State between the refractive index of upper substrate or infrabasal plate and the refractive index of air.
One kind as PDLC display panels provided by the utility model is improved, and each AR films include at least one layer of light
Learn film.
As PDLC display panels provided by the utility model one kind improve, the optical thin film be MgF2, TiO2,
SiNx or SiOx.
One kind as PDLC display panels provided by the utility model is improved, and the PDLC display panels also include sealing
Glue, it forms a confined space with the upper substrate, infrabasal plate, for sealing the polymer dispersed liquid crystal layer.
A kind of PDLC display devices, it includes any above-mentioned PDLC display panels and positioned at the PDLC display panel
The backlight module of side.
One kind as PDLC display devices provided by the utility model is improved, in addition to is located at the PDLC display panels
The contact panel of opposite side.
As PDLC display devices provided by the utility model one kind improve, the contact panel be OGS, GF, GFF or
GG touch-screens.
The utility model has the advantages that：
The PDLC display panels plate the high upper and lower base plate of high-performance AR films by using outer surface, and it is anti-to suppress surface
Penetrate, reduce the light loss of substrate, improve itself transmitance, also improve the utilization rate of light, and then the ON state for lifting display passes through
Rate, set AR films to improve transmitance to a greater degree compared to only unilateral, make the reality seen under pellucidity through glass
Thing becomes apparent from.
Increase the reflectivity of ultraviolet light wave band.Adjustment thickness causes upper and lower interface optical path difference to be equal to ultraviolet wavelength, causes
Ultraviolet light, which interferes, mutually to be grown, and strengthens the reflectivity of ultraviolet light, reduces the transmitance of ultraviolet light.Ultraviolet light can solidify PDLC,
If PDLC devices are persistently acted on by ultraviolet light during use, then can have a strong impact on PDLC activity, drop
The life-span of low device.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model PDLC display panels；
Fig. 2 is that the utility model has the glass of AR films and the transmission spectrum of alkali-free white glass, and upper bar curve is with AR films
Glass, lower bar curve is alkali-free white glass；
Fig. 3 is that the utility model has the glass of AR films and the reflectance spectrum of alkali-free white glass, and upper bar curve is the white glass of alkali-free
Glass, lower bar curve are the glass with AR films；
Fig. 4 is a kind of schematic flow sheet of embodiment of the utility model PDLC display panel manufacture methods；
Fig. 5 is the schematic flow sheet of the another embodiment of the utility model PDLC display panel manufacture methods；
Fig. 6 is the structural representation of the utility model PDLC display devices.
Embodiment
The utility model is described in detail with reference to embodiment, embodiment is only of the present utility model preferred real
Mode is applied, is not to restriction of the present utility model.
As shown in figure 1, the utility model provides a kind of PDLC display panels 1, it includes the upper substrate 11 being oppositely arranged
With infrabasal plate 12, it is separately positioned on the conductive layer 13 of the downside of the upper substrate 11 and the upside of the infrabasal plate 12, on described
Polymer dispersed liquid crystal layer 15 between substrate 11 and infrabasal plate 12；Also include being separately positioned on the upside of upper substrate 11 and institute
State the AR films 14 of the downside of infrabasal plate 12.Each AR films 14 include at least one layer of optical thin film, can be one or more layers light
Learn film so that in visible light wave range, substrate（Upper substrate 11 or infrabasal plate 12）There is a higher transmitance, the optical thin film is excellent
Select but be not limited to MgF2, TiO2, SiNx or SiOx；The refractive index of each AR films 14 is between the upper substrate 11 or lower base
Between the refractive index of plate 12 and the refractive index of air.
It is further improved, increases the reflectivity of ultraviolet light wave band.Adjustment AR thickness causes upper and lower interface optical path difference to be equal to
Ultraviolet wavelength, the upper and lower interface optical path difference of each AR films 14 is 200 ~ 380nm, the thickness about 160 ~ 300nm of AR films 14, is caused
Interfere ultraviolet light mutually to grow, strengthen the reflectivity of ultraviolet light, reduce the transmitance of ultraviolet light.Ultraviolet light can consolidate PDLC
Change, if PDLC devices are persistently acted on by ultraviolet light during use, then PDLC activity can be had a strong impact on,
Reduce the life-span of device.
It is further improved, the PDLC display panels 1 also include fluid sealant 16, itself and the upper substrate 11, infrabasal plate
12 form a confined space, for sealing the polymer dispersed liquid crystal layer 15.Usually, the PDLC display panels 1 pass through
Driving voltage conversion driving polymer dispersed liquid crystal layer 15 material, which reverses, realizes display function.
The upper substrate 11 or infrabasal plate 12 are preferred but are not limited to glass substrate.Surface is provided with to the glass of AR films 14
Reflectance spectrum and transmission spectrum are carried out with alkali-free white glass to contrast, as shown in Figure 2,3, due to the influence of other film layers in practical structures,
Using ON state transmitance after the glass substrate of AR films 14 3% ~ 10% is improved than alkali-free white glass.
The present inventor is by testing the glass for being coated with AR films, it can be found that AR films are stronger having 360 ~ 390nm
Purple light absorbs, ultraviolet light light transmittance ~ 50% of 365nm wavelength, and the uv transmittance of 400nm wavelength can reach 97%.Therefore,
In the manufacturing process of PDLC display panels, AR films and the order of ultraviolet light solidification have considerable influence, Ke Yigen to final product quality
Manufacture method is selected to the transmitance of AR films according to the ultraviolet light of different wave length.
As a kind of preferred embodiment, as shown in figure 4, the manufacture method of the PDLC display panels, it is mainly first
AR films are formed, then carry out sealing and curing, specifically include following steps：
One upper substrate and an infrabasal plate are provided；
Respectively conductive layer is formed in the side of the upper substrate and infrabasal plate；
Respectively AR films are formed in the opposite side of the upper substrate and infrabasal plate；
On the upper substrate with conductive layer and/or infrabasal plate side applying paste and relative to fitting into box；
Photocuring is carried out to fluid sealant using 400nm length ultraviolets light and is fixed into box；
Cutting, which is carried out, by the line of cut of pre-formed small pieces display panel obtains several PDLC display panel semi-finished product；
In filling polymer dispersed liquid crystal layer to box, and ultraviolet light is carried out to polymer dispersed liquid crystal layer（It is it is preferred that but unlimited
It is set to 365nm）Polymer network structure is formed by curing, obtains PDLC display panels.
Preferably, AR films thickness about 160 ~ 300nm is controlled, the upper and lower interface optical path difference for making its AR film is 200 ~ 380nm, is increased
The reflectivity of strong ultraviolet light, reduce the transmitance of ultraviolet light.
As another preferred embodiment, as shown in figure 5, the manufacture method of the PDLC display panels, it is mainly
Sealing and curing is first carried out, AR films are re-formed after sliver, specifically include following steps：
One upper substrate and an infrabasal plate are provided；
Respectively conductive layer is formed in the side of the upper substrate and infrabasal plate；
On the upper substrate with conductive layer and/or infrabasal plate side applying paste and relative to fitting into box；
Photocuring is carried out to fluid sealant using 365nm length ultraviolets light and is fixed into box；
Cutting, which is carried out, by the line of cut of pre-formed small pieces display panel obtains several PDLC display panel semi-finished product；
Successively AR films are formed in the upper substrate of each PDLC display panels semi-finished product and the opposite side of infrabasal plate；
In filling polymer dispersed liquid crystal layer to box, and ultraviolet light is carried out to polymer dispersed liquid crystal layer（It is it is preferred that but unlimited
It is set to 365nm）Polymer network structure is formed by curing, obtains PDLC display panels.
Preferably, AR films thickness about 160 ~ 300nm is controlled, the upper and lower interface optical path difference for making its AR film is 200 ~ 380nm, is increased
The reflectivity of strong ultraviolet light, reduce the transmitance of ultraviolet light.
It should be noted that the upper substrate and infrabasal plate are preferably glass, but it is not limited to this.Positioned at the upper substrate
With the conductive layer of infrabasal plate can according to the different patterned conductive layer of actual conditions design, the utility model do not have to it is special will
Ask, nor improvement of the present utility model, therefore will not be described in detail herein.The utility model is to fluid sealant, polymer dispersed liquid crystal layer
Ultraviolet light solidification light accumulated amount and hardening time do not have a particular/special requirement, when can use conventional light accumulated amount and solidification
Between, it will not be described in detail herein.
In the specific embodiment according to PDLC display panels of the present utility model, the material of conductive layer includes tin indium oxide
（ITO）Or indium zinc oxide（IZO）.
It is worth noting that, it is one layer of light that the forming method of the AR films, which can be deposition process, the AR films such as evaporation,
Learn the optical thin film of film or multilayer different refractivity.Those skilled in the art can adjust according to selected optical film materials
Thickness make it that the upper and lower interface optical path difference of AR films is equal to ultraviolet wavelength, the upper and lower interface optical path differences of the AR films is about 200 ~
380nm.The forming method of the AR films and the method for controlling thickness are prior art, be will not be described in detail herein.
The utility model has no particular limits to used polymer dispersed liquid crystal layer, can be directly using existing poly-
Compound dispersing liquid crystal layer.
As shown in fig. 6, the utility model additionally provides a kind of PDLC display devices, it includes above-mentioned PDLC display panels
1 and the backlight module 2 positioned at the side of PDLC display panels 1.Preferably, it is in addition to another positioned at the PDLC display panels
The contact panel 3 of side.
It is further improved, the backlight module 2 includes transparent light guide plate and light source, and the light source transparent is led positioned at described
The side of tabula rasa.Light is entered using side, the transparent light guide plate upper and lower surface is exiting surface（Upper exiting surface and lower exiting surface）,
Exiting surface is fitted in the lower section of the PDLC display panels 1 thereon.Preferably, exiting surface is provided with micro-structural on described, makes
Its amount of light is 20 ~ 40%, then the amount of light for descending exiting surface is 60 ~ 80%, and the amount of light sum of upper exiting surface and lower exiting surface is
100%；PDLC display panels i.e. described in the less exiting surface face of amount of light, the more exiting surface of amount of light deviate from the PDLC
Display panel, can be it is better seen that PDLC screen contents, while can be more clearly seen the reality after PDLC display panels
Thing.
It is further improved, the contact panel 3 is OGS, GF, GFF or GG touch-screen.
It should be noted that carrying out microstructure design on the surface of the transparent light guide plate according to amount of light, make its satisfaction
The requirement of amount of light, this is prior art, and common knowledge is belonged to for those skilled in the art, and will not be described in detail herein micro-structural
Specific design mode.
Embodiment described above only expresses embodiment of the present utility model, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the utility model patent scope can not be interpreted as, as long as using equivalent substitution or the form of equivalent transformation institute
The technical scheme of acquisition, it all should fall within the scope of protection of the utility model.
Claims (10)
1. a kind of PDLC display panels, it is characterised in that it includes the upper substrate being oppositely arranged and infrabasal plate, is separately positioned on institute
State the conductive layer on the upside of upper substrate downside and the infrabasal plate, the polymer dispersion liquid between the upper substrate and infrabasal plate
Crystal layer；Also include being separately positioned on the AR films on the upside of the upper substrate and on the downside of the infrabasal plate.
2. PDLC display panels according to claim 1, it is characterised in that the upper and lower interface optical path difference of each AR films
For 200 ~ 380nm.
3. PDLC display panels according to claim 2, it is characterised in that the thickness of each AR films be 160 ~
300nm。
4. PDLC display panels according to claim 1, it is characterised in that the refractive index of each AR films is between described
Between the refractive index of the refractive index and air of upper substrate or infrabasal plate.
5. PDLC display panels according to claim 1, it is characterised in that each AR films include at least one layer of optics
Film.
6. PDLC display panels according to claim 5, it is characterised in that the optical thin film is MgF2, TiO2, SiNx
Or SiOx.
7. PDLC display panels according to claim 1, it is characterised in that the PDLC display panels also include sealing
Glue, it forms a confined space with the upper substrate, infrabasal plate, for sealing the polymer dispersed liquid crystal layer.
8. a kind of PDLC display devices, it is characterised in that it includes the PDLC display panels as described in claim 1 to 7 is any
And the backlight module positioned at the PDLC display panels side.
9. PDLC display devices according to claim 8, it is characterised in that also include another positioned at the PDLC display panels
The contact panel of side.
10. PDLC display devices according to claim 9, it is characterised in that the contact panel be OGS, GF, GFF or
GG touch-screens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720419779.XU CN206649254U (en) | 2017-04-20 | 2017-04-20 | PDLC display panels and PDLC display devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720419779.XU CN206649254U (en) | 2017-04-20 | 2017-04-20 | PDLC display panels and PDLC display devices |
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| Publication Number | Publication Date |
|---|---|
| CN206649254U true CN206649254U (en) | 2017-11-17 |
Family
ID=60277013
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720419779.XU Active CN206649254U (en) | 2017-04-20 | 2017-04-20 | PDLC display panels and PDLC display devices |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896561A (en) * | 2017-04-20 | 2017-06-27 | 信利半导体有限公司 | PDLC display panels and its manufacture method |
| CN109143655A (en) * | 2018-09-18 | 2019-01-04 | 中国科学院福建物质结构研究所 | A kind of intelligent dimming glass and its preparation method and application including metal organic frame film |
-
2017
- 2017-04-20 CN CN201720419779.XU patent/CN206649254U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896561A (en) * | 2017-04-20 | 2017-06-27 | 信利半导体有限公司 | PDLC display panels and its manufacture method |
| CN109143655A (en) * | 2018-09-18 | 2019-01-04 | 中国科学院福建物质结构研究所 | A kind of intelligent dimming glass and its preparation method and application including metal organic frame film |
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