A kind of reflecting type liquid crystal display panel and preparation method thereof, display device
Technical field
The invention belongs to field of display technology, and in particular to a kind of reflecting type liquid crystal display panel and preparation method thereof, aobvious
Showing device.
Background technique
According to the set-up mode of the type of used light source and light source, liquid crystal display can be divided into transmissive liquid crystal display
Device, semi permeable type liquid crystal display and reflective liquid-crystal display.For reflective liquid-crystal display, pass through reflection environment
Light, or reflection are set to the light that the light source in front of display panel issues to show picture.Reflection LCD due to
Its low-power consumption, high aperture, without advantages such as backlights, in e-book, the fields such as electronic tag have biggish market latent
Power.
At least there are the following problems in the prior art for inventor's discovery: the problems such as reflection type LCD is partially yellow there are picture at present.
Problem partially yellow for picture existing for Reflective liquid crystal displays, currently used solution have: 1. adjust color film (CF) color blocking.
But this kind of method is limited by blue light resistance material and cost, and manufacturing process limitation is larger, and regulating effect is unobvious;2.
The dye granule of absorbable yellow visible light is added in the pressure-sensitive plastic structure of upper polaroid.This method dialogue picture visually has
Certain effect, but whole exitance is reduced, and improve the cost of polaroid, make product be difficult to have on the market
Competitiveness.
Summary of the invention
There is picture Huang partially for existing reflection type LCD in the present invention, provide a kind of Reflective liquid crystal displays face
Plate and preparation method thereof, display device.
Solving technical solution used by present invention problem is:
A kind of reflecting type liquid crystal display panel including two opposed substrates, and is set to the first substrate and described
Liquid crystal layer between the second substrate, the second substrate are equipped with reflector, are provided with polaroid and phase on the first substrate
Position delay piece;Wherein the first substrate or the second substrate are equipped with lug boss close to the side of the liquid crystal layer, so that liquid
Thickness of liquid crystal layer of the crystal layer at the position that the thickness for being equipped with the position of lug boss is different from not set lug boss.
It optionally, is first substrate close to the substrate of incident side, the substrate far from incident side is the second substrate, described convex
The portion of rising is set to first substrate close to the side of liquid crystal layer.
Optionally, the lug boss includes multiple towards liquid crystal layer protrusion outstanding, and the protrusion is by transparent material structure
At.
Optionally, a sub-pixel is correspondingly provided with multiple protrusions.
Optionally, color film is equipped between the first substrate and the protrusion.
Optionally, on the direction perpendicular to the substrate, between the corresponding raised and the second substrate of the sub-pixel
Size be d, the phase-delay quantity Re=△ n*d of the corresponding liquid crystal layer of the sub-pixel, wherein the liquid crystal layer includes liquid crystal
Molecule, △ n are the specific refractivity between the long axis and short axle of liquid crystal molecule.
Optionally, the lug boss is set to the second substrate close to the side of liquid crystal layer, and the reflector is set to lug boss
Between liquid crystal layer.
Optionally, the first substrate is equipped with polaroid away from the side of liquid crystal layer.
Optionally, the phase delay chip includes 1/2 wave plate and quarter wave plate.
The present invention also provides a kind of display devices, including above-mentioned reflecting type liquid crystal display panel, and are set to described anti-
Penetrate the light source of formula liquid crystal display panel light emission side.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the reflecting type liquid crystal display panel of the embodiment of the present invention 1;
Fig. 2 is the structural schematic diagram of the reflecting type liquid crystal display panel of the embodiment of the present invention 2;
Fig. 3 is the setting structure top view of a sub-pixel protrusions of the embodiment of the present invention 2;
Fig. 4 is the setting structure top view of another sub-pixel protrusions of the embodiment of the present invention 2;
Fig. 5 is the structural schematic diagram of the reflecting type liquid crystal display panel of the embodiment of the present invention 2;
Fig. 6 is the structural schematic diagram of the reflecting type liquid crystal display panel another kind of the embodiment of the present invention 2;
Fig. 7 is another structural schematic diagram of the reflecting type liquid crystal display panel of the embodiment of the present invention 2;
Fig. 8 is that the reflecting type liquid crystal display panel light of the embodiment of the present invention 2 propagates schematic diagram;
Fig. 9 is outgoing of the different delays amount of the liquid crystal layer generation of the display panel of the embodiment of the present invention 2 to high band light
Rate relationship;
Figure 10 is the different delays amount of the liquid crystal layer generation of the display panel of the embodiment of the present invention 2 to low band light exitance
Relationship;
Figure 11 is the different delays amount of the liquid crystal layer generation of the display panel of the embodiment of the present invention 2 to all band light exitance
Relationship;
Wherein, appended drawing reference are as follows: 1, first substrate;2, the second substrate;3, liquid crystal layer;4, reflector;5, lug boss;51,
Protrusion;6, sub-pixel;7, polaroid;8, phase delay chip;81,1/2 wave plate;82, quarter wave plate.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Present invention is further described in detail for formula.
Embodiment 1:
The present embodiment provides a kind of reflecting type liquid crystal display panels, as shown in Figure 1, including opposed first substrate 1 and the
Two substrates 2, and the liquid crystal layer 3 between first substrate 1 and the second substrate 2, wherein the second substrate 2 is equipped with reflector 4,
Polaroid 7 and phase delay chip 8 are provided on first substrate 1;Wherein, first substrate 1 or the second substrate 2 are close to the liquid crystal layer
Side be equipped with lug boss 5 so that liquid crystal layer be equipped with lug boss 5 position thickness be different from not set lug boss position
The thickness of liquid crystal layer at place.
The reflecting type liquid crystal display panel of the present embodiment adjusts the thickness of the liquid crystal layer 3 of different location by setting lug boss 5
Degree, such incident light by phase delay chip 8 switch to circularly polarized light after being polarized by polarizing film 7, reenter and be incident upon liquid crystal layer, due to son
Corresponding 3 thickness of liquid crystal layer of pixel is different, therefore the liquid crystal layer of different-thickness has different phase delay to the light of different wave length
Amount carries out scheduled phase compensation, i.e., certain wavelength so as to the light to the different-waveband range in incident light of selectivity
Incident circularly polarized light is emitted still in the form of circularly polarized light after liquid crystal layer 3, reflector 4 reflect, and other wavelength incidents
Circularly polarized light may become elliptically polarized light by liquid crystal layer, exitance is relatively low.It is equivalent to and utilizes different-thickness
Liquid crystal layer 3, selective reflects different wave length incident light, reflects the incident light of certain wavelength band, to reach
Adjust the purpose of display effect.
Embodiment 2:
The present embodiment provides a kind of reflecting type liquid crystal display panels, as shown in Fig. 2, including the first substrate close to incident side
1 and the second substrate 2 far from incident side, and the liquid crystal layer 3 between two substrates;Wherein the second substrate 2 is equipped with anti-
Emitter 4 is equipped with polaroid 7 and phase delay chip 8 away from the side of liquid crystal layer on first substrate 1;Wherein, first substrate 1 is close
The side of another substrate is equipped with lug boss 5, so that liquid crystal layer is different from not set protrusion in the thickness for being equipped with the position of lug boss 5
Thickness of liquid crystal layer at the position in portion.
It is shown in attached drawing 2 disclosed in the present embodiment, opposed first substrate 1 is provided with close to the side of the second substrate 2
Lug boss 5 limits the liquid crystal layer 3 of different location perpendicular to the size on orientation substrate using lug boss 5.That is,
The position for the sub-pixel counterpart substrate for needing to carry out phase delay increases lug boss 5, due to the presence of lug boss 5, occupies
The portion of liquid crystal layer 3, so that opposite thinning of 3 thickness of liquid crystal layer at the position with lug boss 5.It needs to illustrate
It is the substrate that uneven surface can be directly used, is also possible to increase lug boss 5 in flat substrate surface, the two exists
The principle for changing 3 thickness of liquid crystal layer is similar.
The present embodiment does not limit the specific setting position of lug boss 5, can be set in first substrate 1 or the second substrate 2
On any one substrate.
As the optional embodiment of one of the present embodiment, the lug boss 5 includes multiple outstanding towards liquid crystal layer 3
Protrusion 51, described raised 51 is made of transparent material.
That is, lug boss 5 is set on substrate in the form of protrusion 51, and on perpendicular to orientation substrate, raised ruler
Very little is d0 (not indicating in attached drawing), and the liquid crystal layer 3 at the position of not set protrusion is with a thickness of d1, then in the position of setting protrusion
The liquid crystal layer 3 at place is with a thickness of d1-d0.Specifically, going out light in order to not influence display panel, protrusion is made of transparent material.
The quantity for not limiting protrusion in the present embodiment, as shown in figure 3, can be according to need in 6 region of sub-pixel
One protrusion is only set, can also be with as shown in figure 4, be arranged multiple raised 51 in 6 region of sub-pixel, protrusion
51 quantity and raised area (area refers to the frontal projected area for being raised to substrate) can be according to scheduled retardations
It is changed.Specifically, multiple protrusions are in sub-pixel region when multiple protrusions are arranged in a sub-pixel region
Inside it is uniformly distributed.
The specific size for not limiting protrusion in the present embodiment, can be changed according to actual needs, optionally, hang down
Directly on the direction of the substrate, the size of the corresponding protrusion of the sub-pixel of different colours is different.
It is designed that is, phase-delay quantity can according to need, usually using various sizes of protrusion, so that
The liquid crystal layer 3 of different-thickness carries out phase compensation to the light of predetermined band range.
In one embodiment, the phase delay chip includes 1/2 wave plate and quarter wave plate.Specifically, quarter wave plate is compared
It is arranged in 1/2 wave plate closer to first substrate 1.
As shown in figure 8, incident light by 1/2 wave plate, quarter wave plate switchs to circularly polarized light after being polarized by polarizing film 7, re-shoot
To liquid crystal layer, the circularly polarized light of certain wavelength incident is still gone out in the form of circularly polarized light after liquid crystal layer 3, reflector 4 reflect
It penetrates, and the circularly polarized light of other wavelength incidents may become elliptically polarized light by liquid crystal layer, exitance is relatively low.In order to
The exitance for improving specific wavelength is adjusted the thickness of liquid crystal layer and then is adjusted different inclined by the lug boss being arranged in the application
The optical path difference of the light component in vibration direction, so that elliptically polarized light is adjusted to circularly polarized light when reaching reflector 4.
In one embodiment, on the direction perpendicular to the substrate, corresponding raised and the second base of the sub-pixel
Size between plate 2 is d, the phase-delay quantity Re=△ n*d of the corresponding liquid crystal layer 3 of the sub-pixel, wherein the liquid crystal layer
3 include liquid crystal molecule, and △ n is the specific refractivity between the long axis and short axle of liquid crystal molecule.
Be illustrated by taking attached drawing 5 as an example, 1/2 wave plate, quarter wave plate be usually the intermediate frequency wave band that is directed in visible light into
Row design.As can be seen that 3 thickness of liquid crystal layer (alternatively referred to as box is thick) higher, phase of liquid crystal layer 3 of the mark band of position d1
Retardation Re=Δ n*d1 is larger, larger to the exitance of the low-frequency band light of incident light at the position, attached in conjunction with Fig. 9: 650nm
The light (such as feux rouges) of nearly wave band the position of retardation Re=300 have higher exitance (in Fig. 9-11 exitance refer to by
The ratio of display panel emergent light and incident light).Referring to the light (such as blue light) of Figure 10: 450nm neighbouring wave band in retardation Re
=200 neighbouring positions have higher exitance.Accordingly it can be calculated that its corresponding thickness of liquid crystal layer d2.As it can be seen that 450nm
The phase-delay quantity Re=Δ n*d2 of liquid crystal needed for light is smaller, and required box thickness is lower, and the liquid crystal layer 3 of the position is to the low of incident light
The amount of area of 180~220nm is arranged in band of light selective reflecting, optimal delay amount, has very to the light of wave band near 450nm
High exitance.The accounting of control d1 and d2 in single pixel, so that it may which the ratio for adjusting different-waveband wavelength in reflected light reaches
To the effect for adjusting display color.
In the prior art, 3 thickness of liquid crystal layer of each position is certain, in this way, the liquid crystal layer 3 of its each position is to all band
Visible light (380~780nm) exitance and contrast it is all very high, difference is smaller, can not play adjustment display effect work
With.And the reflecting type liquid crystal display panel of the present embodiment is by adjusting the thickness of the liquid crystal layer 3 of different subpixel position, so that sub
The corresponding liquid crystal layer 3 of pixel has out of phase retardation, to make a reservation for the light of the different-waveband range in incident light
Phase compensation, be equivalent to the incident light of selective reflecting different wave length, the incident light of certain wavelength band carried out anti-
It penetrates, to achieve the purpose that adjust display effect.
In another embodiment, as shown in fig. 6, the lug boss 5 is set to the second substrate 2 close to the side of liquid crystal layer 3,
The reflector 4 is set between lug boss 5 and liquid crystal layer 3.
Reflector 4 is arranged compared to lug boss 5 closer to liquid crystal layer 3 in the present embodiment, and the propagation of 5 pairs of light of lug boss does not have
It influences, therefore the material of lug boss 5 is not defined in the present embodiment, as long as it can be protruded to liquid crystal layer 3.Lug boss 5
Specific setting quantity and size it is similar with attached drawing 3, Fig. 4, details are not described herein.
In one embodiment, color film, the coloured silk film and the protrusion are equipped between the first substrate 1 and the protrusion
It is structure as a whole.
That is, in a direction perpendicular to a substrate, the size of the color film of different colours is different or same color
Size at the different location of color film is different.It is the equal of using identical material using color film and protrusion as integral structure shape
At.The benefit designed in this way is to can simplify preparation process.
In the corresponding attached drawing of embodiment of the disclosure, it is shown that the size of each structure sheaf, thickness etc. shown in attached drawing are only
Signal.In technique realization, the projected area of each structure sheaf on substrate be may be the same or different, and can pass through etching
Technique realizes required each structure sheaf projected area;Meanwhile structure shown in attached drawing does not limit the geometry of each structure sheaf, example yet
It such as can be rectangle shown in the drawings, can also be that trapezoidal or other etchings are formed by shape, it equally can be real by etching
It is existing.
Embodiment 3:
The present embodiment provides a kind of preparation methods of the reflecting type liquid crystal display panel of above-described embodiment, including following preparation
Step:
S01, first substrate is provided;Optionally, first substrate is color membrane substrates, the color film of different location on color membrane substrates
Thickness is different, i.e., the portion of color film forms protrusion, is equivalent to the function that color film has had both lug boss.
S02, the second substrate is provided;Optionally, the second substrate is array substrate, and reflector is formed in array substrate, tool
Body, which includes the steps that forming reflector in array substrate;Sub-pixel corresponding liquid crystal layer in part is perpendicular to base
Size liquid crystal layer corresponding from other sub-pixels on plate direction is different perpendicular to the size on orientation substrate, so that part
The corresponding liquid crystal layer of pixel has the phase-delay quantity of predetermined wavelength range.
In another embodiment, can be to form lug boss on one of them substrate, wherein lug boss can with it is anti-
Emitter is formed on same substrate, and lug boss is formed compared to reflector closer to substrate, and the material of formation lug boss in this way can
To select transparent material, opaque material can also be selected, lug boss has no effect on reflector reflection light.If lug boss and anti-
Emitter is respectively formed on two substrates, then forms the material selection transparent material of lug boss.
S03, by first substrate formation liquid crystal cell opposed with the second substrate;Liquid crystal layer is formed between two substrates.Liquid crystal
The material of layer can be nematic liquid crystal, smectic liquid crystal and cholesteric liquid crystal.
In the present embodiment in several ways, so that the color film or lug boss of portion occupy the part of liquid crystal layer
Position is equivalent to the thickness for having adjusted the liquid crystal layer of different subpixel position, so that the corresponding liquid crystal layer of sub-pixel has difference
Phase-delay quantity is equivalent to so that the light to the different-waveband range in incident light carries out scheduled phase compensation using different
The liquid crystal layer of thickness, selective reflection incident light, reflects the incident light of certain wavelength band, aobvious to reach adjustment
Show the purpose of effect.
Embodiment 4:
Present embodiments provide a kind of display device comprising any one of the above reflecting type liquid crystal display panel, and
Set on the light source of the reflecting type liquid crystal display panel light emission side.The display device can be with are as follows: liquid crystal display panel, electronics
Paper, mobile phone, tablet computer, television set, display, laptop, Digital Frame, navigator etc. are any having a display function
Products or components.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.