CN104460098B - Liquid crystal display method and liquid crystal display - Google Patents
Liquid crystal display method and liquid crystal display Download PDFInfo
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- CN104460098B CN104460098B CN201310432174.0A CN201310432174A CN104460098B CN 104460098 B CN104460098 B CN 104460098B CN 201310432174 A CN201310432174 A CN 201310432174A CN 104460098 B CN104460098 B CN 104460098B
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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
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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
- G02F1/133528—Polarisers
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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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
Abstract
Disclose a kind of liquid crystal display method and liquid crystal display.The liquid crystal display method includes：Backlight is generated using ultraviolet light or the blue light of near ultraviolet；Utilize the first polarizer so that the polarised light with the first polarization direction penetrates in the backlight；Apply control voltage to liquid crystal layer so that the polarization direction of the polarised light with the first polarization direction deflects；Utilize the second polarizer so that the polarized light component with the second polarization direction in the polarised light after the deflection of polarization direction penetrates；And utilize the bombardment fluorescent film of the polarised light with the second polarization direction through the second polarizer so that fluorescent film generates visible ray, so that viewer watches.Since ultraviolet light or the blue light of near ultraviolet have relatively narrow wave-length coverage compared with white light, the optical device in liquid crystal display can show good optical homogeneity.
Description
Technical field
The present invention relates to technical field of liquid crystal display, and relate more specifically to a kind of liquid crystal display method and liquid crystal display
Equipment.
Background technology
Liquid crystal display has revolutionary advantage compared with traditional CRT shows equipment in volume.It is however, another
On the one hand, available liquid crystal shows that the color displays performance of equipment but shows the color displays performance of equipment not as good as traditional CRT.
Traditional CRT shows equipment by beam bombardment light-emitting phosphor, this belongs to Autoluminescence display technology, tool
Have colour gamut is big, visual angle is big, under big visual angle colour cast very little advantage.And traditional CRT show these advantages of equipment exactly into
The shortcoming of equipment is shown for available liquid crystal.
For available liquid crystal shows equipment, for backlight mostly using white light LEDs, white-light spectrum ingredient covers visible ray
All wavelengths.So wide wavelength is all one and challenges, such as polaroid, liquid for all devices related with wavelength
Crystalline substance etc., this is because the optical characteristics of birefringent material is all related with the wavelength of the light by the birefringent material.It is logical
Often, wavelength components are more complicated, and the optical homogeneity of the device related with wavelength is poorer.For example, polarizer may be to different waves
Long polarization degree is different, and liquid crystal layer is under same driving voltage to the polarization direction degree of deflection of the light of different wave length
It is different.Thus, available liquid crystal shows equipment in display to the light of different wave length（Correspondingly, to the light of different colours）Have one
A little inconsistencies.On the other hand, available liquid crystal shows that equipment realizes colored display using colour filter, and it reduce light-uses
Rate causes the light outgoing degradation of liquid crystal display, colour cast serious.
Therefore, it is necessary to a kind of liquid crystal display method and liquid crystal displays, can improve the color offset phenomenon of liquid crystal display.
Invention content
In order to solve the above technical problem, the present invention provides a kind of liquid crystal display method and liquid crystal displays, lead to
It crosses by the use of ultraviolet light or the blue light of near ultraviolet as backlight, deflection of the liquid crystal layer to the backlight is controlled by pixel voltage, most
It is shone afterwards using the blue light bombardment fluorescent material of ultraviolet light or near ultraviolet through liquid crystal layer and the second polarizer.Due to ultraviolet
Light or the blue light of near ultraviolet have relatively narrow wave-length coverage, therefore the optics device in liquid crystal display compared with white light
Part can show good optical homogeneity.
According to an aspect of the invention, there is provided a kind of liquid crystal display method, including：Using ultraviolet light or near ultraviolet
Blue light generates backlight；Utilize the first polarizer so that the polarised light with the first polarization direction penetrates in the backlight；To liquid
Crystal layer applies control voltage so that the polarization direction of the polarised light with the first polarization direction deflects；Utilize second
Polarizer so that the polarized light component with the second polarization direction in the polarised light after the deflection of polarization direction penetrates；With
And utilize the bombardment fluorescent film of the polarised light with the second polarization direction through the second polarizer so that fluorescent film generation can
Light is seen, so that viewer watches.
Preferably, in the liquid crystal display method, the visible ray that the fluorescent film generates is the first primary lights, the second base
Coloured light and third primary lights.On the fluorescent film picture is accordingly divided with the pixel region of the liquid crystal layer and subpixel area
Plain region and subpixel area, each pixel region include three subpixel areas, each pixel region on the fluorescent film
The first fluorescent material is coated in the first sub-pixel area domain in domain, the second sub-pixel of each pixel region on the fluorescent film
The second fluorescent material is coated in region, third is coated in the third subpixel area of each pixel region on the fluorescent film
Fluorescent material.First fluorescent material generates the first primary lights, and the second fluorescent material generates the second primary lights, the production of third fluorescent material
Raw third primary lights, the image watched for viewer is synthesized by the first primary lights, the second primary lights and third primary lights.
Preferably, in the liquid crystal display method, the backlight has at first wave length, second wave length and third wavelength
There is intensity peak, and the intensity at other wavelength is approximately zero, the first wave length, second wave length and third wavelength belong to purple
The blue wave band of outer optical band or near ultraviolet.
Cause fluorescent film using the bombardment fluorescent film of the polarised light with the second polarization direction through the second polarizer
Visible ray is generated to include：Using at first wave length, second wave length and third wavelength with described in intensity peak with second
The first fluorescent material in the polarised light bombardment the first sub-pixel area domain of polarization direction, the second fluorescence in the second subpixel area
Third fluorescent material and first fluorescent material in material and third subpixel area is by the first wave length
The induction of light and generate first primary lights, and first fluorescent material is to the second wave length and the third wavelength
Light it is transparent；Second fluorescent material is generated second primary lights by the induction of the light of the second wave length, and
Second fluorescent material is transparent to the light of the first wave length and the third wavelength；And the third fluorescent material by
The induction of the light of the third wavelength and generate the third primary lights, and the third fluorescent material is to the first wave length
It is transparent with the light of the second wave length.
Alternatively, in the liquid crystal display method, the backlight has intensity peak in first wave strong point, and other
Intensity at wavelength is approximately zero, and the first wave length belongs to ultraviolet light wave band or the blue wave band of near ultraviolet.
First fluorescent material is generated first primary lights by the induction of the light of the first wave length；Described
Two fluorescent materials are generated second primary lights by the induction of the light of the second wave length；And the third fluorescent material
The third primary lights are generated by the induction of the light of the third wavelength.
Preferably, the liquid crystal display method further includes：Absorb the ultraviolet light or near not absorbed by the fluorescent film
The polarised light with the second polarization direction of ultraviolet blue light.
Preferably, in the liquid crystal display method, first polarization direction it is identical with second polarization direction or
First polarization direction described in person is vertical with second polarization direction.
According to a further aspect of the invention, a kind of liquid crystal display is provided, including：Backlight portion, for using ultraviolet
Light or the blue light of near ultraviolet generate backlight；First polarizer, for have in backlight that the backlight portion generates the
The polarised light of one polarization direction penetrates；Liquid crystal layer, for causing the polarization direction of the polarised light with the first polarization direction
It deflects；Second polarizer, for there is second polarization direction in the polarised light after polarization direction is caused to deflect
Polarized light component penetrates；And fluorescent film, for there is polarizing for the second polarization direction through the second polarizer by described
The bombardment of light and generate visible ray, for viewer watch.
Preferably, in the liquid crystal display, with the pixel region and subpixel area of the liquid crystal layer accordingly,
Pixel region and subpixel area are correspondingly divided on the fluorescent film, each pixel region includes three subpixel areas,
The first fluorescent material is coated in the first sub-pixel area domain of each pixel region on the fluorescent film, on the fluorescent film
Each pixel region the second subpixel area in coat the second fluorescent material, each pixel region on the fluorescent film
Third subpixel area in coat third fluorescent material.
The visible ray that the fluorescent film generates is the first primary lights, the second primary lights and third primary lights, and first is glimmering
Luminescent material generates the first primary lights, and the second fluorescent material generates the second primary lights, and third fluorescent material generates third primary lights, leads to
The first primary lights, the second primary lights and third primary lights are crossed to synthesize the image watched for viewer.
Preferably, in the liquid crystal display, the backlight that the backlight portion generates is in first wave length, second wave length
With there is intensity peak at third wavelength, and the intensity at other wavelength is approximately zero, the first wave length, second wave length and
Third wavelength belongs to ultraviolet light wave band or the blue wave band of near ultraviolet,
When the light of the first wave length bombards first fluorescent material, first fluorescent material generates described first
Primary lights, and first fluorescent material is transparent to the light of the second wave length and the third wavelength；In second wave
When long light bombards second fluorescent material, second fluorescent material generates second primary lights, and described second
Fluorescent material is transparent to the light of the first wave length and the third wavelength；And the light bombardment described the in the third wavelength
During three fluorescent materials, the third fluorescent material generates the third primary lights, and the third fluorescent material is to described the
One wavelength and the light of the second wave length are transparent.
Alternatively, in the liquid crystal display, the backlight that the backlight portion generates has by force in first wave strong point
Peak value is spent, and the intensity at other wavelength is approximately zero, the first wave length belongs to the indigo plant of ultraviolet light wave band or near ultraviolet
Optical band.
When the light of the first wave length bombards first fluorescent material, first fluorescent material generates described first
Primary lights；When the light of the second wave length bombards second fluorescent material, second fluorescent material generates described second
Primary lights；And when the light of the third wavelength bombards the third fluorescent material, described in the third fluorescent material generation
Third primary lights.
Preferably, the liquid crystal display further includes：Absorbing film is arranged between the fluorescent film and viewer, is used
In the polarised light with the second polarization direction for the blue light for absorbing the ultraviolet light not absorbed by the fluorescent film or near ultraviolet.
Preferably, in the liquid crystal display, first polarization direction it is identical with second polarization direction or
First polarization direction described in person is vertical with second polarization direction.
Preferably, in the liquid crystal display, the fluorescent film is made as transparent, the liquid crystal layer and institute
State the first and second polarizers be also made as it is transparent, and the light guide plate be also made as it is transparent so that realize saturating
Significantly show.
Preferably, it is further included in the liquid crystal display：Third polarizer, for causing the backlight portion generation
The polarised light with third polarization direction penetrates in backlight；Another liquid crystal layer, it is described with third polarization direction for causing
The polarization direction of polarised light deflects；4th polarizer, for causing the tool in the polarised light after the deflection of polarization direction
The polarized light component for having the 4th polarization direction penetrates；And another fluorescent film, for being had by described through the 4th polarizer
Have the bombardment of the polarised light of the 4th polarization direction and generate visible ray, for viewer watch, wherein, first polarizer and
The third polarizer is located at the opposite sides of the backlight portion respectively.
Liquid crystal display method and liquid crystal display according to embodiments of the present invention, by using ultraviolet light or near ultraviolet
Blue light sends out visible ray as backlight and by using backlight bombardment fluorescent material, can improve the light of liquid crystal display
Consistency is learned, reduces the color offset phenomenon of liquid crystal display, and improve the efficiency of light energy utilization.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that being understood by implementing the present invention.The purpose of the present invention and other advantages can be by specification, rights
Specifically noted structure is realized and is obtained in claim and attached drawing.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Example is applied together for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 schematically illustrates the optical device stacking figure of the liquid crystal display of the prior art；
Fig. 2 schematically illustrates the optical device stacking figure of liquid crystal display according to embodiments of the present invention；
Fig. 3 schematically illustrates the flow chart of liquid crystal display method according to embodiments of the present invention；
Fig. 4 schematically illustrates the block diagram of liquid crystal display according to a first embodiment of the present invention；And
Fig. 5 schematically illustrates the block diagram of liquid crystal display according to a second embodiment of the present invention.
Specific embodiment
It will be described in detail with reference to the accompanying drawings each embodiment according to the present invention.Here it is to be noted that it in the accompanying drawings,
Identical reference numeral, which is assigned, substantially has the component part of same or like structure and function, and will omit about it
Repeated description.
As shown in Figure 1, it is schematically shown that the optical device of the liquid crystal display of the prior art stacks figure.
White LED is disposed in the side of light guide plate（For example, can be left side, right side, upside, arbitrary group of downside
It closes）, and generate white light as backlight.The white light that White LED is sent out is become uniform white light by light guide plate.In other words,
Light guide plate and White LED provide white light as backlight together as area source.
White light is incident on lower polarizer, and the white light only with the first polarization direction can penetrate lower polarizer.Then,
By applying control voltage to liquid crystal layer so that through the lower polarizer the white light with the first polarization direction it is inclined
The direction that shakes deflects.That is, the polarization direction through the white light of liquid crystal layer is to have deflected one on the basis of the first polarization direction
Determine the polarization direction of angle.Next, the white light through liquid crystal layer is incident on upper polarizer, only with the second polarization direction
White light can penetrate upper polarizer, second polarization direction can be identical or vertical with first polarization direction.Through
The intensity/brightness of the white light of the upper polarizer is by the control voltage control.
Finally, through on the white light of the upper polarizer to R or G or B colour filters to be presented on corresponding sub-pixel
Go out the colourama of corresponding bright.One pixel generally includes R, G, B sub-pixel, therefore, pixel can by combine its R,
G, B sub-pixels are sent out light and show synthesis light.
However, in the liquid crystal display device as shown in fig. 1, since white-light spectrum ingredient covers all waves of visible ray
It is long, and such as optical characteristics of the device of polarizer, liquid crystal etc is all related with optical wavelength, light wave long component is more complicated, optics
Consistency is poorer.For example, same polarizer is different for the polarization degree of different wave length, same liquid crystal layer is in same driving electricity
Pressure is also different to the degree of deflection of different wave length.Therefore, there may be colour casts to show for conventional liquid crystal display apparatus as shown in Figure 1
As.
As shown in Figure 2, it is schematically shown that the optical device of liquid crystal display according to embodiments of the present invention stacks
Figure.
Ultraviolet LED or blue led are disposed in the side of light guide plate（For example, can be left side, right side, upside, downside
Arbitrary combination）, and ultraviolet light or the blue light of near ultraviolet are correspondingly generated as backlight.Light guide plate by ultraviolet LED or
The ultraviolet light or the blue light of near ultraviolet that person's blue led is sent out become uniform light.In other words, with conventional liquid crystal display apparatus class
Seemingly, either blue led provides the blue light of ultraviolet light or near ultraviolet as the back of the body together as area source for light guide plate and ultraviolet LED
Light.
Lower polarizer, liquid crystal layer, upper polarizer and fluorescent film have been sequentially arranged on light guide plate.
Ultraviolet light or the blue light of near ultraviolet are incident on lower polarizer, ultraviolet light only with the first polarization direction or
The blue light of person's near ultraviolet can penetrate lower polarizer.Then, by applying control voltage to liquid crystal layer so that through described lower inclined
The shake polarization direction of the ultraviolet light with the first polarization direction of piece or the blue light of near ultraviolet deflects.That is, through
The polarization direction of the ultraviolet light of liquid crystal layer or the blue light of near ultraviolet is to have deflected certain angle on the basis of the first polarization direction
The polarization direction of degree.Next, the blue light of the ultraviolet light or near ultraviolet through liquid crystal layer is incident on upper polarizer, only have
There are the ultraviolet light of the second polarization direction or the blue light of near ultraviolet that can penetrate upper polarizer, second polarization direction can be with
First polarization direction is identical or vertical.The intensity of the blue light of ultraviolet light or near ultraviolet through the upper polarizer/bright
Degree is by the control voltage control.
Finally, it on the ultraviolet light through the upper polarizer or the blue light illumination to fluorescent film of near ultraviolet, is applied with bombarding
The fluorescent material overlayed on fluorescent film generates visible ray.
The embodiment of the present invention is specifically described below in conjunction with Fig. 3, Fig. 4 and Fig. 5.
As shown in figure 3, schematically illustrate the flow chart of liquid crystal display method 300 according to embodiments of the present invention.
Liquid crystal display method 300 according to embodiments of the present invention starts in step S301.
In step S310, backlight is generated using ultraviolet light or the blue light of near ultraviolet.It is led as shown in Fig. 2, may be used
Either blue led generates the backlight of the blue light of ultraviolet light or near ultraviolet together as area source for tabula rasa and ultraviolet LED.It substitutes
Ground, the point light source groups that light guide plate and other any blue lights that can generate ultraviolet light or near ultraviolet may be used are closed together as face
Light source, to generate the backlight of the blue light of ultraviolet light or near ultraviolet.Alternatively, other, which may be used, any can be used as area source
To generate the configuration of the backlight of the blue light of ultraviolet light or near ultraviolet.
In step S320, the first polarizer is utilized so that the polarised light with the first polarization direction penetrates in the backlight.
In step S330, apply control voltage to liquid crystal layer so that the polarised light with the first polarization direction it is inclined
The direction that shakes deflects.
In step S340, the second polarizer is utilized so that have second in the polarised light after the deflection of polarization direction
The polarized light component of polarization direction penetrates.
Operation in step S320-S340 is similar to the corresponding operating in available liquid crystal display methods, and details are not described herein.
In step S350, fluorescence is bombarded using the polarised light with the second polarization direction through the second polarizer
Film so that fluorescent film generates visible ray, so that viewer watches.
Then, in step S399, liquid crystal display method 300 according to embodiments of the present invention terminates.
In addition, although being not shown in figure 3, liquid crystal display method 300 according to embodiments of the present invention step S350 it
After can also include another step：Absorb the tool of the ultraviolet light not absorbed by the fluorescent film or the blue light of near ultraviolet
There is the polarised light of the second polarization direction.
In the following, the operation of the step S350 in liquid crystal display method 300 according to embodiments of the present invention will be described in detail.
Accordingly divided with the pixel region of the liquid crystal layer and subpixel area on the fluorescent film pixel region and
Subpixel area, each pixel region include three subpixel areas, and each subpixel area can include one or more sons
Pixel coats the first fluorescent material in the first sub-pixel area domain of each pixel region on the fluorescent film, described glimmering
The second fluorescent material is coated in second subpixel area of each pixel region on light film, each picture on the fluorescent film
Third fluorescent material is coated in the third subpixel area in plain region.
First fluorescent material generates the first primary lights, and the second fluorescent material generates the second primary lights, the production of third fluorescent material
Raw third primary lights.Specifically, the polarised light with the second polarization direction through the second polarizer bombards the first fluorescence
Material generates the first primary lights, and the polarised light with the second polarization direction through the second polarizer bombards the second phosphor
Material generates the second primary lights, the bombardment third fluorescent material of the polarised light with the second polarization direction through the second polarizer
Generate third primary lights.
The image watched for viewer is synthesized by the first primary lights, the second primary lights and third primary lights.Specifically,
For each pixel region, by generated in the first primary lights for being generated in the first sub-pixel area, the second subpixel area
The third primary lights that are generated in two primary lights and third subpixel area synthesize the pixel light of the pixel region.
First example
In this example, the backlight has an intensity peak at first wave length, second wave length and third wavelength, and described the
One wavelength, second wave length and third wavelength belong to ultraviolet light wave band or the blue wave band of near ultraviolet.Preferably, the backlight exists
Nearby intensity reduces rapidly first wave length, and intensity reduces rapidly near second wave length, and in third wavelength, not only intensity drops rapidly
It is low, and intensity is approximately zero at other wavelength.
In this example, in step S350, specifically, have using at first wave length, second wave length and third wavelength
There are the first fluorescent material in the polarised light bombardment the first sub-pixel area domain with the second polarization direction of intensity peak, the
The third fluorescent material in the second fluorescent material and third subpixel area in two subpixel areas.
First fluorescent material is generated first primary lights by the induction of the light of the first wave length, and institute
It is transparent to the light of the second wave length and the third wavelength to state the first fluorescent material；Second fluorescent material is by described
The induction of the light of two wavelength and generate second primary lights, and second fluorescent material is to the first wave length and described
The light of third wavelength is transparent；And the third fluorescent material is generated the third by the induction of the light of the third wavelength
Primary lights, and the third fluorescent material is transparent to the light of the first wave length and the second wave length.
Accordingly, for each pixel region, pass through the first primary lights for being generated in the first sub-pixel area, the second sub-pixel area
The third primary lights that are generated in the second primary lights and third subpixel area that are generated in domain synthesize the pixel of the pixel region
Light.
Second example
In this example, the backlight has intensity peak in first wave strong point, and the first wave length belongs to ultraviolet light wave
The blue wave band of section or near ultraviolet.Preferably, backlight intensity near first wave length reduces rapidly, and in other waves
Strong point intensity is approximately zero.
In this example, in step S350, specifically, using first wave strong point with described in intensity peak with
Second in the first fluorescent material, the second subpixel area in the polarised light bombardment the first sub-pixel area domain of second polarization direction
Third fluorescent material in fluorescent material and third subpixel area.
First fluorescent material is generated first primary lights by the induction of the light of the first wave length；Described
Two fluorescent materials are generated second primary lights by the induction of the light of the second wave length；And the third fluorescent material
The third primary lights are generated by the induction of the light of the third wavelength.
Accordingly, for each pixel region, pass through the first primary lights for being generated in the first sub-pixel area, the second sub-pixel area
The third primary lights that are generated in the second primary lights and third subpixel area that are generated in domain synthesize the pixel of the pixel region
Light.
As shown in figure 4, schematically illustrate the block diagram of liquid crystal display 400 according to a first embodiment of the present invention.
It is inclined that liquid crystal display 400 according to a first embodiment of the present invention includes the backlight portion 410, first sequentially arranged
Shake piece 420, liquid crystal layer 430, the second polarizer 440 and fluorescent film 450.
The backlight portion 410 generates backlight using ultraviolet light or the blue light of near ultraviolet.As shown in Fig. 2, it may be used
Either blue led generates the backlight of the blue light of ultraviolet light or near ultraviolet together as area source for light guide plate and ultraviolet LED.It replaces
Dai Di, may be used light guide plate and other any blue lights that can generate ultraviolet light or near ultraviolet point light source groups close together as
Area source, to generate the backlight of the blue light of ultraviolet light or near ultraviolet.Alternatively, other, which may be used, any can be used as face light
Source generates the configuration of the backlight of the blue light of ultraviolet light or near ultraviolet.
The backlight generated from the backlight portion, the i.e. blue light of ultraviolet light or near ultraviolet are incident on first polarizer
On 420, first polarizer 420 is so that the polarised light with the first polarization direction is saturating in the backlight that the backlight portion generates
It crosses.
Through the polarised light with the first polarization direction of first polarizer 420, i.e., with the first polarization direction
Ultraviolet light or the blue light of near ultraviolet are incident on the liquid crystal layer 430.
Apply control voltage to the liquid crystal layer 430 so that being incident on the described of the liquid crystal layer 430 has the first polarization
The polarization direction of the ultraviolet light in direction or the blue light of near ultraviolet deflects, thus the ultraviolet light through the liquid crystal layer 430 or
The polarization direction of the blue light of near ultraviolet is has the polarization direction of certain deflection angle on the basis of first polarization direction
（Hereinafter referred to as deflect polarization direction）.There is the ultraviolet light of the deflection polarization direction or nearly purple through the liquid crystal layer 430
Outer blue light is incident on second polarizer 440.
Second polarizer 440 in the polarised light after the deflection of polarization direction so that have the second polarization direction
Polarized light component penetrate, i.e., so that be incident on second polarizer 440 have it is described polarization polarization direction ultraviolet light or
It is penetrated in the blue light of near ultraviolet along the polarized light component of the second polarization direction.As a result, with the second polarization direction ultraviolet light or
The blue light of near ultraviolet is incident on fluorescent film 450.Second polarization direction and first polarization direction are identical or different.It is excellent
Selection of land, second polarization direction and first polarization direction are identical or vertical.
The fluorescent film 450 by it is described through the second polarizer had the second polarization direction polarised light bombardment and
Visible ray is generated, so that viewer watches.
Although being not shown in Fig. 4, liquid crystal display 400 according to a first embodiment of the present invention can also include absorbing
Film, the absorbing film are disposed between the fluorescent film 450 and viewer, are not absorbed for absorbing by the fluorescent film 450
The ultraviolet light or near ultraviolet blue light the polarised light with the second polarization direction.
In the liquid crystal display 400, with the pixel region and subpixel area of the liquid crystal layer 430 accordingly,
Pixel region and subpixel area are correspondingly divided on the fluorescent film 450, each pixel region includes three sub-pixel areas
Domain, each subpixel area can include one or more sub-pixels, and first of each pixel region on the fluorescent film
The first fluorescent material is coated in subpixel area, is applied in the second subpixel area of each pixel region on the fluorescent film
The second fluorescent material is covered, third phosphor is coated in the third subpixel area of each pixel region on the fluorescent film
Material.
First fluorescent material generates the first primary lights, and the second fluorescent material generates the second primary lights, the production of third fluorescent material
Raw third primary lights.Specifically, the polarised light with the second polarization direction through the second polarizer bombards the first fluorescence
Material generates the first primary lights, and the polarised light with the second polarization direction through the second polarizer bombards the second phosphor
Material generates the second primary lights, the bombardment third fluorescent material of the polarised light with the second polarization direction through the second polarizer
Generate third primary lights.
The image watched for viewer is synthesized by the first primary lights, the second primary lights and third primary lights.Specifically,
For each pixel region, by generated in the first primary lights for being generated in the first sub-pixel area, the second subpixel area
The third primary lights that are generated in two primary lights and third subpixel area synthesize the pixel light of the pixel region.
First example
In this example, the backlight that the backlight portion 410 generates is in first wave length, second wave length and third wavelength
Place has intensity peak, and the first wave length, second wave length and third wavelength belong to ultraviolet light wave band or the blue light of near ultraviolet
Wave band.Preferably, backlight intensity near first wave length reduces rapidly, and intensity reduces rapidly near second wave length,
Not only intensity reduces rapidly third wavelength, and intensity is approximately zero at other wavelength.
Through ultraviolet light of second polarizer 440 with the second polarization direction or the blue light of near ultraviolet, i.e.,
The indigo plant of ultraviolet light with the second polarization direction or near ultraviolet at one wavelength, second wave length and third wavelength with intensity peak
Illumination is mapped on fluorescent film 450.That is, have described in intensity peak using at first wave length, second wave length and third wavelength
In the first fluorescent material, the second subpixel area in polarised light bombardment the first sub-pixel area domain with the second polarization direction
Third fluorescent material in second fluorescent material and third subpixel area.
First fluorescent material is generated first primary lights by the induction of the light of the first wave length, and institute
It is transparent to the light of the second wave length and the third wavelength to state the first fluorescent material；Second fluorescent material is by described
The induction of the light of two wavelength and generate second primary lights, and second fluorescent material is to the first wave length and described
The light of third wavelength is transparent；And the third fluorescent material is generated the third by the induction of the light of the third wavelength
Primary lights, and the third fluorescent material is transparent to the light of the first wave length and the second wave length.
Accordingly, for each pixel region, pass through the first primary lights for being generated in the first sub-pixel area, the second sub-pixel area
The third primary lights that are generated in the second primary lights and third subpixel area that are generated in domain synthesize the pixel of the pixel region
Light.
Second example
In this example, the backlight that the backlight portion 410 generates has intensity peak in first wave strong point, described
First wave length belongs to ultraviolet light wave band or the blue wave band of near ultraviolet.Preferably, backlight intensity near first wave length
It reduces rapidly, and intensity is approximately zero at other wavelength.
In this example, through ultraviolet light of second polarizer 440 with the second polarization direction or near ultraviolet
Blue light is arrived in the blue light illumination of ultraviolet light with the second polarization direction of the first wave strong point with intensity peak or near ultraviolet
On fluorescent film 450.That is, it is bombarded using in first wave strong point with the polarised light with the second polarization direction described in intensity peak
The second fluorescent material in the first fluorescent material, the second subpixel area and third sub-pixel area in the first sub-pixel area domain
Third fluorescent material in domain.
First fluorescent material is generated first primary lights by the induction of the light of the first wave length；Described
Two fluorescent materials are generated second primary lights by the induction of the light of the second wave length；And the third fluorescent material
The third primary lights are generated by the induction of the light of the third wavelength.
Accordingly, for each pixel region, pass through the first primary lights for being generated in the first sub-pixel area, the second sub-pixel area
The third primary lights that are generated in the second primary lights and third subpixel area that are generated in domain synthesize the pixel of the pixel region
Light.
It, can be in the side opposite with first polarizer of the backlight portion 410 although being not shown in Fig. 4
Total reflection film is disposed with, for improving the utilization ratio of backlight.Therefore, in the case, the liquid crystal display 400 of Fig. 4 can
To be one side show equipment.
On the other hand, due to fluorescent material be typically it is transparent, it is transparent it is therefore possible to which fluorescent film is made.More into one
Step, liquid crystal layer, polarizer etc. can also be made as transparent.As a result, in this case, it is possible to be not provided with the total reflection
Film, so as to fulfill the transparence display of liquid crystal display.The liquid crystal display can be implemented in glasses, vehicle glass, quotient
On shop glass etc..
As shown in figure 5, schematically illustrate the block diagram of liquid crystal display 500 according to a second embodiment of the present invention.
It is inclined that liquid crystal display 500 according to a second embodiment of the present invention includes the backlight portion 510, first sequentially arranged
Shake piece 520, the first liquid crystal layer 530, the second polarizer 540 and the first fluorescent film 550, and in the opposite side of backlight portion 510
Also sequentially include third polarizer 560, the second liquid crystal layer 570, the 4th polarizer 580 and the second fluorescent film 590.
Backlight portion 510 can be with 410 similar or identical setting of backlight portion as shown in Figure 4, and details are not described herein.
First polarizer 520 and third polarizer 560 can be similar or identical with the first polarizer 420 as shown in Figure 4
Setting, the first liquid crystal layer 530 and the second liquid crystal layer 570 can with 430 similar or identical setting of liquid crystal layer as shown in Figure 4, the
Two polarizers 540 and the 4th polarizer 580 can with 440 similar or identical setting of the second polarizer as shown in Figure 4, herein not
It repeats again.
The third polarizer 560 is so that have the polarised light of third polarization direction in the backlight that the backlight portion generates
Through.4th polarizer 580 causes there is the inclined of the 4th polarization direction in the polarised light after the deflection of polarization direction
The light component that shakes penetrates.Third polarization direction and the 4th polarization direction can be identical or different.Preferably, third polarization direction and
Four polarization directions are identical or vertical.
Third polarization direction can be identical or different with the first polarization direction, and the 4th polarization direction can with the second polarization direction
With identical or different.In order to which structure design is simple, it is preferable that first polarization direction is identical with first polarization direction,
4th polarization direction is identical with second polarization direction.
First fluorescent film 550 and the second fluorescent film 590 can with 450 similar or identical setting of fluorescent film as shown in Figure 4,
Details are not described herein.
In liquid crystal display 500 shown in Fig. 5, backlight portion 510 can include the first light guide plate and the first purple
Outer LED or blue led are used to provide backlight for 520 side of the first polarizer, can also include the second light guide plate and the second purple
Outer LED or blue led are used to provide backlight for 560 side of third polarizer.In this case, it is possible in the first light guide plate and
Isolation film is arranged between two light guide plates（Two-sided total reflection film can be utilized to realize）.First ultraviolet LED or blue led and
Second ultraviolet LED or blue led can be same LED or difference LED.
Alternatively, in liquid crystal display 500 shown in Fig. 5, backlight portion 510 can only include light guide plate with
And one group of ultraviolet LED or blue led are used to provide backlight simultaneously for 520 side of the first polarizer and 560 side of third polarizer.
Preferably due to fluorescent material is typically transparent, it is transparent it is therefore possible to which fluorescent film is made.More into one
Step, liquid crystal layer, polarizer etc. can also be made as transparent.
As a result, in the case, by by the liquid crystal display 500 backlight portion 510, the first polarizer
520th, the first liquid crystal layer 530, the second polarizer 540, the first fluorescent film 550, third polarizer 560, the second liquid crystal layer 570,
Four polarizers 580 and the second fluorescent film 590 are all made as transparent, can realize that two-side transparent is shown.This can be applied to swim
It plays under application scenarios, can realize the Overlapping display of different user control role.
In addition, although not shown in Figure 5, the liquid crystal display 500 further includes the first absorbing film, described first inhales
Winder is disposed between the fluorescent film 550 and viewer, is not absorbed for absorption by the fluorescent film 550 described ultraviolet
The polarised light with the second polarization direction of light or the blue light of near ultraviolet；And the second absorbing film is further included, described second absorbs
Film is disposed between the fluorescent film 590 and viewer, for absorbing the ultraviolet light not absorbed by the fluorescent film 590
Or the polarised light with the 4th polarization direction of the blue light of near ultraviolet.
Liquid crystal display method and liquid crystal display according to embodiments of the present invention, by using ultraviolet light or near ultraviolet
Blue light as backlight, wave spectrum is very narrow, so that polarizer and liquid crystal layer is more consistent to the operation of backlight, reduces liquid
The color offset phenomenon of crystalline substance display improves the display effect of liquid crystal display.Further, by by fluorescent film, polarizer, liquid crystal layer
It is transparent etc. being made as, it can realize transparence display.Further, it is glimmering by using ultraviolet light or the bombardment of the blue light of near ultraviolet
Luminescent material shines, and the display characteristic and Autoluminescence that can cause liquid crystal display approach, and can realize what is shown close to tradition CRT
Color display effect.
Each embodiment of the present invention has been described in detail above.However, it should be appreciated by those skilled in the art that not taking off
In the case of from the principle and spirit of the invention, these embodiments can be carry out various modifications, combination or sub-portfolio, and in this way
Modification should fall within the scope of the present invention.
Claims (12)
1. a kind of liquid crystal display method, including：
Backlight is generated using ultraviolet light or the blue light of near ultraviolet；
Utilize the first polarizer so that the polarised light with the first polarization direction penetrates in the backlight；
Apply control voltage to liquid crystal layer so that the polarization direction of the polarised light with the first polarization direction deflects；
Utilize the second polarizer so that the polarised light with the second polarization direction in the polarised light after the deflection of polarization direction
Component penetrates；And
Fluorescent film is bombarded using the polarised light with the second polarization direction through the second polarizer so that fluorescent film generates
Visible ray, so that viewer watches；
Absorbing described in the ultraviolet light not absorbed by the fluorescent film or the blue light of near ultraviolet has the second polarization direction
Polarised light；
Wherein, the fluorescent film, first polarizer, second polarizer and liquid crystal layer are transparent.
2. liquid crystal display method as described in claim 1, wherein,
The visible ray that the fluorescent film generates is the first primary lights, the second primary lights and third primary lights,
On the fluorescent film pixel region and sub- picture are accordingly divided with the pixel region of the liquid crystal layer and subpixel area
Plain region, each pixel region include three subpixel areas, the first sub- picture of each pixel region on the fluorescent film
The first fluorescent material is coated in plain region, is coated in the second subpixel area of each pixel region on the fluorescent film
Two fluorescent materials coat third fluorescent material in the third subpixel area of each pixel region on the fluorescent film, with
And
First fluorescent material generates the first primary lights, and the second fluorescent material generates the second primary lights, and third fluorescent material generates the
Three primary colours light synthesizes the image watched for viewer by the first primary lights, the second primary lights and third primary lights.
3. liquid crystal display method as claimed in claim 2, wherein,
The backlight has intensity peak, and the intensity at other wavelength at first wave length, second wave length and third wavelength
It is approximately zero, the first wave length, second wave length and third wavelength belong to ultraviolet light wave band or the blue wave band of near ultraviolet,
Wherein, cause fluorescent film using the bombardment fluorescent film of the polarised light with the second polarization direction through the second polarizer
Visible ray is generated to include：
Using at first wave length, second wave length and third wavelength with described in intensity peak with the inclined of the second polarization direction
The first fluorescent material in the light that shakes bombardment the first sub-pixel area domain, the second fluorescent material and third in the second subpixel area
Third fluorescent material in subpixel area and
First fluorescent material is generated first primary lights by the induction of the light of the first wave length, and described
One fluorescent material is transparent to the light of the second wave length and the third wavelength；Second fluorescent material is by second wave
The induction of long light and generate second primary lights, and second fluorescent material is to the first wave length and the third
The light of wavelength is transparent；And the third fluorescent material is generated the third primary colours by the induction of the light of the third wavelength
Light, and the third fluorescent material is transparent to the light of the first wave length and the second wave length.
4. liquid crystal display method as claimed in claim 2, wherein,
The backlight has intensity peak in first wave strong point, and the intensity at other wavelength is approximately zero, the first wave
Length belongs to ultraviolet light wave band or the blue wave band of near ultraviolet,
Wherein, first fluorescent material is generated first primary lights by the induction of the light of the first wave length；It is described
Second fluorescent material is generated second primary lights by the induction of the light of the first wave length；And the third phosphor
Material is generated the third primary lights by the induction of the light of the first wave length.
5. liquid crystal display method as described in claim 1, wherein,
First polarization direction is identical with second polarization direction or first polarization direction and the described second polarization
Direction is vertical.
6. a kind of liquid crystal display, including：
Backlight portion, for generating backlight using the blue light of ultraviolet light or near ultraviolet；
First polarizer, for the polarised light that there is the first polarization direction in the backlight of the backlight portion generation to be caused to penetrate；
Liquid crystal layer, the polarization direction for causing the polarised light with the first polarization direction deflect；
Second polarizer, for causing the polarised light with the second polarization direction in the polarised light after the deflection of polarization direction
Component penetrates；And
Fluorescent film, for by the bombardment of the polarised light through the second polarizer with the second polarization direction and generate can
Light is seen, so that viewer watches；
Absorbing film is arranged between the fluorescent film and viewer, is not absorbed for absorption by the fluorescent film described ultraviolet
The polarised light with the second polarization direction of light or the blue light of near ultraviolet；
Wherein, the fluorescent film, first polarizer, second polarizer and liquid crystal layer are transparent.
7. liquid crystal display as claimed in claim 6, wherein,
With the pixel region and subpixel area of the liquid crystal layer accordingly, pixel region is correspondingly divided on the fluorescent film
And subpixel area, each pixel region include three subpixel areas, the of each pixel region on the fluorescent film
The first fluorescent material is coated in one subpixel area, in the second subpixel area of each pixel region on the fluorescent film
The second fluorescent material is coated, third phosphor is coated in the third subpixel area of each pixel region on the fluorescent film
Material and
The visible ray that the fluorescent film generates is the first primary lights, the second primary lights and third primary lights, and the first phosphor
Material generates the first primary lights, and the second fluorescent material generates the second primary lights, and third fluorescent material generates third primary lights, by the
One primary lights, the second primary lights and third primary lights synthesize the image watched for viewer.
8. liquid crystal display as claimed in claim 7, wherein,
The backlight that the backlight portion generates has intensity peak at first wave length, second wave length and third wavelength, and at it
Intensity at its wavelength is approximately zero, and the first wave length, second wave length and third wavelength belong to ultraviolet light wave band or near purple
Outer blue wave band,
Wherein, when the light of the first wave length bombards first fluorescent material, first fluorescent material generates described the
One primary lights, and first fluorescent material is transparent to the light of the second wave length and the third wavelength；Described second
When the light of wavelength bombards second fluorescent material, second fluorescent material generates second primary lights, and described the
Two fluorescent materials are transparent to the light of the first wave length and the third wavelength；And described in the light bombardment in the third wavelength
During third fluorescent material, the third fluorescent material generates the third primary lights, and the third fluorescent material is to described
The light of first wave length and the second wave length is transparent.
9. liquid crystal display as claimed in claim 7, wherein,
The backlight that the backlight portion generates has intensity peak in first wave strong point, and the intensity at other wavelength is approximately
Zero, the first wave length belongs to ultraviolet light wave band or the blue wave band of near ultraviolet,
Wherein, when the light of the first wave length bombards first fluorescent material, first fluorescent material generates described the
One primary lights；When the light of the first wave length bombards second fluorescent material, second fluorescent material generates described the
Two primary lights；And when the light of the first wave length bombards the third fluorescent material, the third fluorescent material generates institute
State third primary lights.
10. liquid crystal display as claimed in claim 6, wherein,
The fluorescent film is made as transparent, and the liquid crystal layer and first and second polarizer are also made as transparent
, and the light guide plate in the liquid crystal display be also made as it is transparent so that realize transparence display.
11. liquid crystal display as claimed in claim 6, further includes：
Third polarizer, for the polarised light that there is third polarization direction in the backlight of the backlight portion generation to be caused to penetrate；
Another liquid crystal layer, the polarization direction for causing the polarised light with third polarization direction deflect；
4th polarizer, for causing the polarised light with the 4th polarization direction in the polarised light after the deflection of polarization direction
Component penetrates；And
Another fluorescent film produces for being had the bombardment of the polarised light of the 4th polarization direction by the 4th polarizer of the transmission
Raw visible ray, so that viewer watches,
Wherein, first polarizer and the third polarizer are located at the opposite sides of the backlight portion respectively.
12. liquid crystal display as claimed in claim 6, wherein,
First polarization direction is identical with second polarization direction or first polarization direction and the described second polarization
Direction is vertical.
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| WO2019022211A1 (en) | 2017-07-28 | 2019-01-31 | 日本化薬株式会社 | Stilbene compound or salt thereof, polarizing film, polarizing plate and display device |
| CN107479253A (en) | 2017-08-31 | 2017-12-15 | 京东方科技集团股份有限公司 | A kind of transparent display |
| CN111133347B (en) * | 2017-09-20 | 2022-08-23 | 日本化药株式会社 | Optical system and display device |
| CN108535911A (en) | 2018-05-21 | 2018-09-14 | 京东方科技集团股份有限公司 | A kind of transparent liquid crystal display device |
| CN108957928A (en) * | 2018-08-01 | 2018-12-07 | 张家港康得新光电材料有限公司 | Projection film with include its optical projection system |
| CN108957938A (en) * | 2018-08-01 | 2018-12-07 | 张家港康得新光电材料有限公司 | Projection film with include its optical projection system |
| CN108957939A (en) * | 2018-08-01 | 2018-12-07 | 张家港康得新光电材料有限公司 | Projection film with include its optical projection system |
| CN110412795A (en) * | 2019-08-29 | 2019-11-05 | 苏州科光光电科技有限公司 | A kind of colour self-luminous transparent display device and display methods |
| CN110361894A (en) * | 2019-08-29 | 2019-10-22 | 苏州科光光电科技有限公司 | A kind of monochrome self-luminous transparent display device and display methods |
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