CN108710226A - A kind of transparent display and display methods - Google Patents
A kind of transparent display and display methods Download PDFInfo
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- CN108710226A CN108710226A CN201810513009.0A CN201810513009A CN108710226A CN 108710226 A CN108710226 A CN 108710226A CN 201810513009 A CN201810513009 A CN 201810513009A CN 108710226 A CN108710226 A CN 108710226A
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- Prior art keywords
- light
- liquid crystal
- optical filtering
- raster unit
- filtering portion
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Classifications
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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
- G02F1/1313—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 specially adapted for a particular application
-
- 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
- G02F1/133509—Filters, e.g. light shielding masks
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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
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
-
- 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
- G02F1/29—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 position or the direction of light beams, i.e. deflection
Abstract
A kind of transparent display of offer of the embodiment of the present invention and display methods, are related to display technology field, the problem that the transmitance of the transparent display caused by using polaroid in the prior art can be avoided low；The transparent display, including multiple sub-pixes and the transparent cell between adjacent sub-pix；Sub-pix includes optical filtering portion and light shielding part；Transparent display further includes the leaded light component set gradually, liquid crystal grating component and color membrane substrates；Leaded light component includes light guide plate, and light guide plate is both provided in the side close to liquid crystal grating component, corresponding each sub-pix and takes light raster unit；Liquid crystal grating component is used to adjust the emergent light for taking light raster unit from the transit dose in corresponding sub-pix, is shown with the grayscale for realizing different.
Description
Technical field
The present invention relates to display technology field more particularly to a kind of transparent display and display methods.
Background technology
Growing with display technology, various display technologies continue to bring out, wherein transparence display technology is shown because of it
The light through characteristic of panel, has been to be concerned by more and more people.Since transparent display has certain light peneration, not only
Picture can be shown on the display screen, the background that display screen watches display screen backstage side can also be penetrated, to more suitable
For building window, automotive window, shopper window etc..
Transparent display in the prior art generally mostly uses liquid crystal transparent display device, and aobvious for liquid crystal transparent
For showing device, display basic principle is that upper and lower polarizing film adds liquid crystal cell structure, by liquid crystal to polarization of light state
Modulation shows to realize；But since the setting of polarizing film causes the transmitance of light to be decreased obviously, especially for transparence display
Device, since the setting of polaroid causes the maximum limit of environment light transmission rate to be only 50%, so that transparence display
The transparency of device is restricted.
Invention content
A kind of transparent display of the embodiment of the present invention offer and display methods can avoid in the prior art because using
The low problem of the transmitance of transparent display caused by polaroid.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that：
The embodiment of the present invention provides a kind of transparent display, including multiple sub-pixes and positioned at the adjacent sub- picture
Transparent cell between element；The sub-pix includes optical filtering portion and light shielding part；The transparent display further includes setting gradually
Leaded light component, liquid crystal grating component and color membrane substrates；The leaded light component includes light guide plate, and the light guide plate is close to institute
State the side of liquid crystal grating component, corresponding each sub-pix is both provided with and takes light raster unit；The liquid crystal grating component
For adjust it is described take the emergent light of light raster unit from the transit dose in the corresponding sub-pix, to realize different grayscale
Display.
Optionally, in the case of not forming grating in the liquid crystal grating component, the outgoing for taking light raster unit
Light from the transit dose in the corresponding sub-pix be 0.
Optionally, in the sub-pix：The light shielding part is one；The optical filtering portion includes：Along first direction and position
The first optical filtering portion and the second optical filtering portion in the light shielding part both sides；The light guide plate includes：Along the first direction and phase
To the first incident side and the second incident side of setting；It is described to take the light raster unit to include：First takes light raster unit and with second
Take light raster unit；The incident ray of first incident side takes light raster unit to take out through described first, and described second enters light
The incident ray of side takes light raster unit to take out through described second；First optical filtering portion and second optical filtering portion receive institute
Stating first takes light raster unit and described second to take the emergent ray of light raster unit.
Optionally, first optical filtering portion and second optical filtering portion are symmetrical along the first center line, and first center line is institute
State center line of the light shielding part on the first direction；Described first takes light raster unit and described second to take the light of light raster unit
Grid cycle is identical and symmetrical along first center line；The incident ray of first incident side and entering for second incident side
It is identical as the angle of the vertical line of the light guide plate to penetrate light.
Optionally, the optical filtering portion further includes third optical filtering portion that is upper in a second direction and being located at the light shielding part both sides
With the 4th optical filtering portion；The light guide plate further includes in the second direction and the third incident side being oppositely arranged and the 4th enters
Light side, the second direction are different directions from the first direction；It is described to take the light raster unit to include：Third takes light grating
Unit and the 4th takes light raster unit；The incident ray of the third incident side takes light raster unit to take out through the third, institute
The incident ray for stating the 4th incident side takes light raster unit to take out through the described 4th；Third optical filtering portion and the described 4th filters
Portion receive the third take light raster unit and the described 4th take light raster unit emergent ray.
Optionally, third optical filtering portion and the 4th optical filtering portion are symmetrical along the second center line, and second center line is institute
State center line of the light shielding part in the second direction；The third takes light raster unit and the described 4th to take the light of light raster unit
Grid cycle is identical and symmetrical along second center line；The incident ray of the third incident side and entering for the 4th incident side
It is identical as the angle of the vertical line of the light guide plate to penetrate light.
Optionally, the light shielding part is rectangular configuration；The first direction is with the second direction：Respectively along the screening
The direction of two groups of opposite side in light portion；First optical filtering portion, second optical filtering portion, third optical filtering portion and the 4th filter
Light portion is integrally formed structure along the four of the light shielding part sides are end to end successively respectively.
Optionally, the optical filtering portion is disposed proximate to the light shielding part.
Optionally, the liquid crystal grating component includes：Liquid crystal layer, and the strip shaped electric poles positioned at described liquid crystal layer the same side
And plane-shape electrode；The strip shaped electric poles, close to the side of the liquid crystal layer, pass through the driving item relative to the plane-shape electrode
Shape electrode and the plane-shape electrode control the liquid crystal layer and form liquid crystal grating.
Optionally, the period of the strip sub-electrode is 3 μm~10 μm.
On the other hand the embodiment of the present invention also provides a kind of display methods of transparent display above-mentioned, the display methods
Including：Progressively scan the sub-pix in the transparent display；When scanning is to a line sub-pix, liquid crystal grating component is controlled
Adjustment takes the emergent light of light raster unit from the transit dose in corresponding sub-pix, and the different grayscale to realize each sub-pix are aobvious
Show.
Optionally, control liquid crystal grating component adjustment from take the emergent light of light raster unit from corresponding sub-pix
Transit dose, with realize the different grayscale of each sub-pix show including：The liquid crystal grating component is not driven, so that taking light light
The emergent light of grid unit is 0 from the transit dose in corresponding sub-pix, realizes that 0 grayscale is shown；Alternatively, driving the liquid crystal grating
Component forms grating, takes the emergent light of light raster unit from the transit dose size in corresponding sub-pix with control, realizes non-zero ash
Rank shows.
The embodiment of the present invention provides a kind of transparent display and display methods, including multiple sub-pixes and positioned at adjacent
Sub-pix between transparent cell；Sub-pix includes optical filtering portion and light shielding part；Transparent display further includes setting gradually
Leaded light component, liquid crystal grating component and color membrane substrates；Leaded light component includes light guide plate, and light guide plate is close to liquid crystal grating component
Side, corresponding each sub-pix is both provided with and takes light raster unit；Liquid crystal grating component takes light raster unit for adjusting
Emergent light is shown from the transit dose in corresponding sub-pix with the grayscale for realizing different.
Due to liquid crystal transparent display device in the prior art, the optically-active of liquid crystal is needed using upper and lower polaroid and combined
Property realize that normal grayscale is shown, the setting of polaroid and the problem that causes the transmitance of transparent region relatively low；In contrast, originally
Transparent display in invention, in the case where not using polaroid, by setting take light raster unit from light guide plate into
Row takes light, and makes the amount of light of sub-pix by the adjustment of liquid crystal grating component, while realizing different grayscale displays,
Improve the transmitance of display area (subpixel regions) and transparent region (transparent cell).
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of floor map of transparent display provided in an embodiment of the present invention；
Fig. 2 is diagrammatic cross-sections of the Fig. 1 along the positions O-O '；
Fig. 3 is the floor map of another transparent display provided in an embodiment of the present invention；
Fig. 4 is diagrammatic cross-sections of the Fig. 3 along the positions C-C '；
Fig. 5 is the floor map of another transparent display provided in an embodiment of the present invention；
Fig. 6 is a kind of display methods flow chart of transparent display provided in an embodiment of the present invention.
Reference numeral：
01- leaded light components；02- liquid crystal grating components；03- color membrane substrates；10- optical filterings portion；The first optical filterings of 101- portion；102-
Second optical filtering portion；11- light guide plates；12- takes light raster unit；121- first takes light raster unit；122- second takes light grating list
Member；20- light shielding parts；21- liquid crystal layers；22- pixel electrodes；23- public electrodes；100- sub-pixes；200- transparent cells；300- enters
Light side；The first incident sides of 301-；The second incident sides of 302-.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Unless otherwise defined, the technical term or scientific terminology used in the embodiment of the present invention is should be belonging to the present invention
The ordinary meaning that the personage with general technical ability is understood in field." first " that is used in the embodiment of the present invention, " second " with
And similar word is not offered as any sequence, quantity or importance, and be used only to distinguish different component parts." packet
Including " element or object that either the similar word such as "comprising" means to occur before the word cover and appear in the word presented hereinafter
Element either object and its equivalent and be not excluded for other elements or object.The similar word such as " connection " or " connected "
It is not limited to physics or mechanical connection, but may include electrical connection, it is either directly or indirect.
"upper", "lower", "left", "right" etc. are only used for indicating relative position relation, after the absolute position for being described object changes, then should
Relative position relation may also correspondingly change.
The embodiment of the present invention provides a kind of transparent display, such as Fig. 1 and Fig. 2 (sectional views of the Fig. 1 along the positions O-O ') institute
Show, which includes multiple sub-pixes 100 and the 200 (ring of transparent cell between adjacent sub-pix 100
Border light can penetrate the region, realize transparence display)；Wherein, the sub-pix 100 of the transparent display includes 10 He of optical filtering portion
Light shielding part 20.
With reference to such as Fig. 2, the transparent display further include the leaded light component 01 set gradually, liquid crystal grating component 02 and
Color membrane substrates 03.
Specifically, leaded light component 01 includes light guide plate 11, light guide plate 11 is in the side close to liquid crystal grating component 02, correspondence
Each sub-pix 100, which is both provided with, takes light raster unit 12；Wherein, light guide plate 11 is generally transparent material, and is taking light light
Grid unit 12 can be provided with the flatness layer of low-refraction away from the side of light guide plate 11, and can be arranged take light raster unit and
The refractive index of light guide plate is same or similar, to ensure that taking light raster unit can be carried out effectively takes light；And by rational
Design takes the screen periods in light raster unit, can adjust the angle for the emergent ray for taking light raster unit.
Liquid crystal grating component 02 is used to adjust the emergent light for taking light raster unit 12 from the transmission in corresponding sub-pix 100
Amount, is shown with the grayscale for realizing different.
Wherein, with reference to figure 2, above-mentioned liquid crystal grating component 02 generally comprises：Liquid crystal layer 21, and drive the electricity of liquid crystal layer 21
Pole (including pixel electrode 22 and public electrode 23), by electrode apply signal so that liquid crystal layer formed liquid crystal grating, from
And achieve the purpose that the light transit dose for adjusting sub-pix.
To the setting shape of electrode (including pixel electrode 22 and public electrode 23) in the liquid crystal grating component 02 in the present invention
Formula is not construed as limiting；Wherein, pixel electrode 22 and public electrode 23 can be the spaced strip shaped electric poles of same layer；Can also be as
Shown in Fig. 2, pixel electrode 22 is strip shaped electric poles, and public electrode 23 is plane-shape electrode, and strip shaped electric poles are relative to plane-shape electrode
Close to the side (namely the setting of different layer) of liquid crystal layer, wherein the period of strip sub-electrode is generally 3 μm~10 μm, implements below
Example is preferred as example, and the present invention is described further.
On this basis, it should be understood that, first, for color membrane substrates 03, set at 10 position of corresponding optical filtering portion
Colored filter pattern layers (filter pattern for generally comprising three kinds of colors of red, green, blue) are equipped with, are set at 20 position of corresponding light shielding part
It is equipped with shielding pattern layer, such as black matrix (BM) pattern layer.
Second, it is inevitable for display device, in light guide plate 11 optics group can be generally provided in incident side 300
Part provides incident ray (incident ray is necessarily towards light guide plate internal direction)；Wherein, which generally comprises light source
With light source couples mirror etc., is coupled light rays into light guide plate and be totally reflected by optical module, and taking light raster unit position
Set place's outgoing；Based on the direction for adjusting the emergent light for taking light raster unit 12 in the present invention by liquid crystal grating component 02, in turn
Adjustment is from the transit dose in corresponding sub-pix 100, and currently preferred, the emergent ray of above-mentioned optical module is collimated light
Line, to ensure the subsequent effective adjustment of light and effective control of grayscale.
Third, in order to avoid error caused by assembling, ensures entire display dress for above-mentioned liquid crystal grating component 02
The contraposition accuracy set, it is generally preferable to, with reference to figure 2, liquid crystal layer 21 will be located in liquid crystal grating component 02 close to leaded light component
01 device is directly made on leaded light component 01 (such as pixel electrode shown in Figure 2 22 and public electrode 23), namely leads
Lower substrate of the optical assembly 01 as liquid crystal grating component 02；Device positioned at liquid crystal layer 21 close to 03 side of color membrane substrates is direct
Be made on color membrane substrates 03 namely color membrane substrates 03 as liquid crystal grating component 02 upper substrate (for example, being leaned in liquid crystal layer 21
In the case that nearly 03 side of color membrane substrates is provided with pixel electrode and public electrode, pixel electrode and public electrode can be made
In on color membrane substrates).
4th, what the transparent display in the present invention not only can be simple is used for transparence display field, still can answer
For AR display fields, this is not limited by the present invention；Also, transparent cell can be adjusted according to specific application in practice
Ratio, to adjust the whole clearing degree of display device.
5th, it should be understood that, each patterned layer on substrate in transparent display (such as electrode layer, insulating layer, flatness layer
Deng), substrate etc. is generally made of transparent material.
In conclusion due to liquid crystal transparent display device in the prior art, needs using upper and lower polaroid and combine liquid
Brilliant optical activity realizes that normal grayscale is shown, the setting of polaroid and the problem that causes the transmitance of transparent region relatively low；Phase
Than under, the transparent display in the present invention takes light raster unit from leading in the case where not using polaroid by setting
It carries out taking light in tabula rasa, and by the adjustment of liquid crystal grating component so that the amount of light of sub-pix, is realizing that different grayscale is aobvious
While showing, the transmitance of display area (subpixel regions) and transparent region (transparent cell) is improved (higher than traditional
50% transmitance limiting value).
On this basis, take the emergent light of light raster unit 12 from correspondence for being adjusted above by liquid crystal grating component 02
Sub-pix 100 in transit dose can be full ash for realizing that different grayscale shows (such as 0~255 grayscale is shown)
Rank (0~255 grayscale) is realized in driving 02 electrode of liquid crystal grating component；Can also be not drive liquid crystal grating group
In part in the case of (that is, not forming grating), take the emergent light of light raster unit from the transit dose in corresponding sub-pix be 0
(adjustment takes the screen periods of light raster unit, ensures that emergent ray is incident to light shielding part) namely 0 grayscale are shown, and are being passed through
In the case of forming grating in electrode drive liquid crystal grating component, take the emergent light of light raster unit from corresponding sub- picture to adjust
Non-zero transit dose namely non-zero (1~255) grayscale in element are shown；Certainly, for simplify control, energy consumption is reduced, the present invention is excellent
Choosing, in the case of not forming liquid crystal grating in liquid crystal grating component, take the emergent light of light raster unit from corresponding sub- picture
Transit dose in element is 0.
In addition, below under the specific facilities in optical filtering portion 10 in sub-pix and light shielding part 20, being described further.
It can be with as shown in Figure 1, tool passes through liquid crystal grating component there are one optical filtering portion 10 and a light shielding part 20 in sub-pix
02 control takes the emergent light of light raster unit 12 to be incident to light shielding part 20 and realizes that 0 grayscale is shown, and controls and take light raster unit 12
Emergent light realize that non-zero grayscale is shown from the transit dose in optical filtering portion 10.
It should here be understood that arriving, in the case that an optical filtering portion 10 is only set in above-mentioned sub-pix 100, passing through liquid
Brilliant grating assembly 02 control take the emergent light of light raster unit 12 from transit dose in optical filtering portion 10 while, can have part light
Line is emitted from the transparent cell 200 of the other side (that is, side opposite with optical filtering portion 10) of light shielding part 20, leads to some light
It is not effectively utilized, but some light appropriate can promote the brightness for showing picture.
On this basis, it in order to improve the aperture opening ratio of sub-pix in display device, adequately utilizes and takes light raster unit 12
Emergent light, currently preferred, in conjunction with shown in Fig. 3 and Fig. 4 (sectional views of the Fig. 3 along the positions C-C '), sub-pix 100 includes
One light shielding part 20；Optical filtering portion 10 includes：The first optical filtering portion 101 along first direction X-X ' and positioned at 20 both sides of light shielding part
With the second optical filtering portion 102.
It should be noted that the present invention is not construed as limiting above-mentioned first direction X-X ', only it is signal in Fig. 3, with first
Direction X-X ' is on the left and right direction of light shielding part 20, the upper and lower of certain first direction X-X ' or light shielding part 20 to
On；It can also be other directions etc..
In the case, light guide plate 11 includes the incident side on first direction X-X '；It should here be understood that arriving, for leading
Generally speaking tabula rasa 11, has incident side 300 along first direction X-X ', and for positioned at side of incident side 300 itself
For, the side is practical vertical with first direction X-X '.
Specifically, above-mentioned light guide plate 11 includes the incident side on first direction X-X ', can be along first direction X-X '
On single-sided illumination (namely there are one incident side and optical modules positioned at the incident side for setting)；It can also be along first direction
It includes that first along first direction X-X ' and be oppositely arranged enters that bilateral, which enters light namely the incident side 300 of light guide plate 11, on X-X '
Light side 301 and the second incident side 302 are (with reference to figure 4, at this point, light can be respectively set in the first incident side 301 and the second incident side 302
Learn component)；In practice, in order to which the light transmission for improving sub-pix is bright, ensure the quality for showing picture, it is generally preferable to, using in Fig. 4
Show in such a way that bilateral enters light.
On this basis, with reference to figure 4, the light raster unit 12 is taken to include：First takes light raster unit 121 and second to take light light
Grid unit 122；Wherein, the incident ray (with reference to the solid line being located in figure 4 in light guide plate) of the first incident side 301 takes light through first
Raster unit 121 is emitted, which can be incident to 101 He of the first optical filtering portion under the control of liquid crystal grating component 02
Second optical filtering portion 102；The incident ray of second incident side 302 takes light through (with reference to the dotted line being located in figure 4 in light guide plate) second
Raster unit 122 is emitted, which can be incident to 101 He of the first optical filtering portion under the control of liquid crystal grating component 02
Second optical filtering portion 102.
On this basis, the emergent ray for the ease of taking light raster unit 121 to first by liquid crystal grating component 02
The control for the emergent light for taking light raster unit 122 with second, to realize that the different grayscale of each sub-pix 100 are shown, the present invention is excellent
Choosing, with reference to figure 3, above-mentioned first optical filtering portion 101 and the second optical filtering portion 102 are symmetrical along the first center line L1, and the first center line L1 is to hide
Center line of the light portion 20 on first direction X-X '；First takes light raster unit 121 and second to take the grating week of light raster unit 122
Phase is identical and symmetrical along the first center line L1；The incident ray of first incident side 301 and the incident ray of the second incident side 302 with
The angle of the vertical line of light guide plate 11 is identical (incident ray of certain both sides is along first direction towards on the inside of light guide plate).
So, for single sub-pix, the first optical filtering portion 101 and the second optical filtering portion 102, first take light grating
Unit 121 and second take light raster unit 122, the incident ray of the first incident side 301 and the second incident side 302 incident light
Line, it is symmetrical about the first center line L1, to by controlling in the pixel electrode in liquid crystal grating component 02 in single sub-pix
Strip shaped electric poles export same drive signal in the case of, you can ensure that first takes light raster unit 121 and second to take light grating
The emergent ray of unit 122 is effectively incident to the first optical filtering portion 101 and the second optical filtering portion 102.
On this basis, in order to further improve the aperture opening ratio of sub-pix in display device, the light transmission of sub-pix is improved
Amount, as shown in figure 5, currently preferred, optical filtering portion 10 further includes on Y-Y ' and being located at 20 both sides of light shielding part in a second direction
Third optical filtering portion and the 4th optical filtering portion；Wherein, light guide plate 11 includes the incident side on Y-Y ' in a second direction, which can be with
It is the single-sided illumination on Y-Y ' (namely there are one incident side and optical modules positioned at the incident side for setting) in a second direction；
Can also bilateral enters light namely light guide plate 11 on Y-Y ' in a second direction incident side 300 further include in a second direction on Y-Y ',
And the third incident side and the 4th incident side being oppositely arranged；In practice, in order to which the light transmission for improving sub-pix is bright, ensure to show picture
Quality, it is generally preferable to, in such a way that bilateral enters light.
On this basis, the light raster unit is taken to further include：Third takes light raster unit and the 4th to take light raster unit；Its
In, the incident ray of third incident side takes light raster unit to be emitted through third, and the emergent ray is in liquid crystal grating component
Under control, third optical filtering portion and the 4th optical filtering portion can be incident to；The incident ray of 4th incident side takes light grating list through the 4th
Member outgoing, and the emergent ray can be incident to third optical filtering portion and the 4th optical filtering portion under the control of liquid crystal grating component.
It, can be with the first optical filtering portion in reference chart 4 and the second optical filtering portion for above-mentioned third optical filtering portion and the 4th optical filtering portion
Facilities, above-mentioned third take light raster unit and the 4th to take light raster unit that can take light raster unit in reference chart 4 first
It is taken under light raster unit facilities with second, no longer attached drawing repeats herein.
In addition, for the ease of taking the emergent ray of light raster unit and the 4th to take light third by liquid crystal grating component 02
The control of the emergent light of raster unit, currently preferred to realize that the different grayscale of each sub-pix are shown, above-mentioned third filters
Portion and the 4th optical filtering portion are symmetrical along the second center line, the second center line be light shielding part in a second direction on center line；Third takes light grating
Unit and the 4th takes the screen periods of light raster unit identical and symmetrical along the second center line；The incident ray of third incident side and
The incident ray of 4th incident side is identical as the angle of the vertical line of light guide plate.
On this basis, as shown in Figure 5, it is preferred that light shielding part 20 is rectangular configuration；Above-mentioned first direction X-X ' and second
Direction Y-Y ' is：Respectively along the direction of two groups of opposite side of light shielding part 20, first direction X-X ' is vertical with second direction Y-Y ' at this time；
First optical filtering portion, the second optical filtering portion, third optical filtering portion and the 4th optical filtering portion (in Fig. 5, are located at light shielding part 20 in above-mentioned optical filtering portion 20
The optical filtering portion of upper and lower, left and right) structure is integrally formed along four sides of light shielding part 20 are end to end successively respectively, so as to most
The aperture opening ratio of the raising sub-pix of big degree, the effective utilization rate for improving light, the further light transmission for improving sub-pix are bright.
It should here be understood that arriving, it is in above-mentioned first direction X-X ' and second direction Y-Y '：Respectively along the two of light shielding part 20
In the case of the direction of group opposite side, it is generally preferable to, first takes light raster unit 121 and second to take in light raster unit 122
Grizzly bar extends along vertical first direction X-X ' (namely second direction Y-Y '), and third takes light raster unit and the 4th to take light grating list
Grizzly bar in member extends along vertical second direction Y-Y ' (namely second direction X-X ').
In addition, for the ease of adjusting the utilization that different grayscale showed and improved light by liquid crystal grating component 02
Rate, the present invention, it is preferred that as shown in Figures 1 to 5, optical filtering portion 10 (including the first optical filtering portion, the second optical filtering portion；And/or third
Optical filtering portion and the 4th optical filtering portion) it is disposed proximate to light shielding part 20.
In addition it is also necessary to explanation, shown in above-mentioned Fig. 3, optical filtering portion 100 includes：Along first direction X-X '
In the case of upper and the first optical filtering portion 101 and the second optical filtering portion 102 positioned at 20 both sides of light shielding part, it is located at liquid crystal grating component
Pixel electrode 22 in 02 and public electrode 23, can be with as shown in figure 4, positioned at liquid crystal layer 21 close to the side of leaded light component 01
(namely using leaded light component as substrate, directly by electrode fabrication on leaded light component)；Pixel electrode 22 and public affairs can also be set
Common electrode 23 is located at liquid crystal layer 21 close to the side of color membrane substrates 03 (namely using color membrane substrates as substrate, directly by electrode system
Make on color membrane substrates), this is not limited by the present invention.
Shown in above-mentioned Fig. 5, optical filtering portion 100 includes：Along first direction X-X ' and it is located at 20 both sides of light shielding part
The first optical filtering portion 101 and the second optical filtering portion 102, and in a second direction on Y-Y ' and positioned at 20 both sides of light shielding part third
In the case of optical filtering portion and the 4th optical filtering portion, need that two arrays of electrodes (including pixel electrode and public affairs are arranged in liquid crystal grating component 02
Common electrode), it is respectively used to that liquid crystal layer is driven to form the liquid crystal grating on first direction X-X ' and the in a second direction liquid on Y-Y '
Brilliant grating, in this case, it is possible to which two arrays of electrodes is set to the same side of liquid crystal layer 21, (liquid crystal layer 21 is close to leaded light component 01
Side or liquid crystal layer 21 close to the side of color membrane substrates 03), the not homonymy of liquid crystal layer 21 can also be set to；The present invention
This is not construed as limiting, can select to be arranged in practice as needed.
Certainly, it for above-mentioned two arrays of electrodes (including pixel electrode and public electrode), can be filled by same driving
It sets (circuit) to be driven, different driving device (circuit) can also be set, above-mentioned two arrays of electrodes is respectively driven, this
Invention is not especially limited this, can select setting as needed in practice.
The embodiment of the present invention also provides a kind of display methods of transparent display above-mentioned, as shown in fig. 6, the display side
Method includes：
Step S101, the sub-pix in the transparent display is progressively scanned.
Step S102, when scanning is to a line sub-pix, control liquid crystal grating component adjustment takes the outgoing of light raster unit
Light is from the transit dose in corresponding sub-pix, to realize that the different grayscale of each sub-pix are shown.
There is the above-mentioned display methods for transparent display above-mentioned the transparence display provided with previous embodiment to fill
Set identical advantageous effect.Since previous embodiment is described in detail the advantageous effect of transparent display,
Details are not described herein again.
In addition, for simplify control, energy consumption is reduced, currently preferred, " control liquid crystal grating group in above-mentioned steps S102
Part adjustment takes the emergent light of light raster unit from the transit dose in corresponding sub-pix, and the different grayscale to realize each sub-pix are aobvious
Show " may include：
Liquid crystal grating component is not driven, so that taking the emergent light of light raster unit from the transit dose in corresponding sub-pix
It is 0, realizes that 0 grayscale is shown；Alternatively, driving liquid crystal grating component forms grating, with control take the emergent light of light raster unit from
Transit dose size in corresponding sub-pix realizes that non-zero grayscale is shown.
Specifically, in conjunction with the display device of Fig. 4, above-mentioned preferred display methods is described further below.
In the case where a line sub-pix is opened, for single sub-pix：
If the target gray scale of the sub-pix be 0 grayscale, can not drive at this time liquid crystal grating component (namely to pixel electricity
Pole 22 does not apply drive signal, and liquid crystal layer 21 does not form optical grating construction at this time), in the case, first takes light raster unit 121
It takes the emergent ray of light raster unit 122 to be incident to light shielding part 20 with second (shown in Fig. 4, from light raster unit is taken to go out
The solid line ray penetrated), the amount of light of the sub-pix is 0 namely 0 grayscale at this time.
If the target gray scale of the sub-pix is non-zero grayscale, liquid crystal grating component can be driven, forms optical grating construction,
That is, under the common driving of pixel electrode and public electrode, liquid crystal deflects, and the refractive index of liquid crystal layer forms periodical change
Change, being equivalent to arch optical grating construction, (certainly, the period of the arch optical grating construction is generally one of strip shaped electric poles in pixel electrode
Half, be 1.5 μm~5 μm)；At this point, first takes light raster unit 121 and second that the emergent ray of light raster unit 122 is taken to penetrate
When optical grating construction, direction changes, and is diverging light by collimated light variation, and be incident to the first optical filtering portion 101 and second respectively
Optical filtering portion 102 (shown in Fig. 4, from the dotted ray for taking light raster unit to be emitted), the sub-pix goes out with certain at this time
Light quantity namely non-zero grayscale.
In practice, by controlling the size of the drive signal applied to pixel electrode, arch optical grating construction is formed to adjust
Sagitta, and then adjust the effect of breaing up of light (drive signal that general pixel electrode applies be bigger, forms arch grating knot
The sagitta of structure is higher, to light to break up effect higher), shown with the non-zero grayscale for realizing different.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (12)
1. a kind of transparent display, including multiple sub-pixes and the transparent cell between the adjacent sub-pix；
It is characterized in that, the sub-pix includes optical filtering portion and light shielding part；
The transparent display further includes the leaded light component set gradually, liquid crystal grating component and color membrane substrates；
The leaded light component includes light guide plate, and the light guide plate is in the side close to the liquid crystal grating component, corresponding each institute
It states sub-pix and is both provided with and take light raster unit；
The liquid crystal grating component is used to adjust the emergent light for taking light raster unit from saturating in the corresponding sub-pix
It is excessive, it is shown with the grayscale for realizing different.
2. transparent display according to claim 1, which is characterized in that do not form light in the liquid crystal grating component
In the case of grid,
The emergent light for taking light raster unit from the transit dose in the corresponding sub-pix be 0.
3. transparent display according to claim 1 or 2, which is characterized in that
In the sub-pix：The light shielding part is one；
The optical filtering portion includes：The first optical filtering portion and the second optical filtering portion along first direction and positioned at the light shielding part both sides；
The light guide plate includes：Along the first direction and the first incident side and the second incident side that are oppositely arranged；
It is described to take the light raster unit to include：First takes light raster unit and takes light raster unit with second；First incident side
Incident ray take light raster unit to take out through described first, the incident ray of second incident side takes light light through described second
Grid unit takes out；
First optical filtering portion and second optical filtering portion receive described first and light raster unit and described second are taken to take light light
The emergent ray of grid unit.
4. transparent display according to claim 3, which is characterized in that
First optical filtering portion and second optical filtering portion are symmetrical along the first center line, and first center line is the light shielding part along institute
State the center line on first direction；
Described first takes light raster unit to take the screen periods of light raster unit identical with described second and along first center line
Symmetrically；
The folder of the incident ray of first incident side and the incident ray of second incident side and the vertical line of the light guide plate
Angle is identical.
5. transparent display according to claim 3, which is characterized in that
The optical filtering portion further includes upper in a second direction and the third optical filtering portion and the 4th positioned at the light shielding part both sides filters
Portion；
The light guide plate further includes the third incident side and the 4th incident side in the second direction and being oppositely arranged, described
Second direction is different directions from the first direction；
It is described to take the light raster unit to include：Third takes light raster unit and the 4th to take light raster unit；The third incident side
Incident ray takes light raster unit to take out through the third, and the incident ray of the 4th incident side takes light grating through the described 4th
Unit takes out；
Third optical filtering portion and the 4th optical filtering portion receive the third and light raster unit and the described 4th are taken to take light light
The emergent ray of grid unit.
6. transparent display according to claim 5, which is characterized in that
Third optical filtering portion and the 4th optical filtering portion are symmetrical along the second center line, and second center line is the light shielding part along institute
State the center line in second direction；
The third takes light raster unit to take the screen periods of light raster unit identical with the described 4th and along second center line
Symmetrically；
The folder of the incident ray of the third incident side and the incident ray of the 4th incident side and the vertical line of the light guide plate
Angle is identical.
7. transparent display according to claim 5, which is characterized in that
The light shielding part is rectangular configuration；
The first direction is with the second direction：Respectively along the direction of two groups of opposite side of the light shielding part；
First optical filtering portion, second optical filtering portion, third optical filtering portion and the 4th optical filtering portion are respectively along the screening
Four sides in light portion are end to end successively to be integrally formed structure.
8. transparent display according to claim 1, which is characterized in that the optical filtering portion and the light shielding part are close to setting
It sets.
9. transparent display according to claim 1, which is characterized in that the liquid crystal grating component includes：Liquid crystal layer,
And strip shaped electric poles and plane-shape electrode positioned at described liquid crystal layer the same side；
The strip shaped electric poles relative to the plane-shape electrode close to the side of the liquid crystal layer, by drive the strip shaped electric poles and
The plane-shape electrode controls the liquid crystal layer and forms liquid crystal grating.
10. transparent display according to claim 9, which is characterized in that the period of the strip sub-electrode be 3 μm~
10μm。
11. a kind of display methods of claim 1-10 any one of them transparent displays, which is characterized in that the display
Method includes：
Progressively scan the sub-pix in the transparent display；
When scanning is to a line sub-pix, control liquid crystal grating component adjustment takes the emergent light of light raster unit from corresponding sub- picture
Transit dose in element, to realize that the different grayscale of each sub-pix are shown.
12. the display methods of transparent display according to claim 11, which is characterized in that the control liquid crystal grating
Component adjustment takes the emergent light of light raster unit from the transit dose in corresponding sub-pix, to realize the different grayscale of each sub-pix
Display includes：
The liquid crystal grating component is not driven, so that taking the emergent light of light raster unit from the transit dose in corresponding sub-pix
It is 0, realizes that 0 grayscale is shown；
Alternatively, the liquid crystal grating component is driven to form grating, take the emergent light of light raster unit from corresponding sub- picture with control
Transit dose size in element realizes that non-zero grayscale is shown.
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