CN110441953A - Display module and display device - Google Patents
Display module and display device Download PDFInfo
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- CN110441953A CN110441953A CN201910706582.8A CN201910706582A CN110441953A CN 110441953 A CN110441953 A CN 110441953A CN 201910706582 A CN201910706582 A CN 201910706582A CN 110441953 A CN110441953 A CN 110441953A
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- polaroid
- membrane substrates
- color membrane
- display module
- array substrate
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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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
- G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
-
- 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
- G02F1/133548—Wire-grid polarisers
Abstract
The present invention discloses a kind of display module and display device, is related to field of display technology, comprising: display panel and the backlight module positioned at display panel side；Display panel includes: the array substrate being oppositely arranged and color membrane substrates and liquid crystal, and array substrate is located at color membrane substrates close to the side of backlight module；Along the direction perpendicular to plane where array substrate, it is oppositely arranged on the first wire grid polaroid and the second wiregrating polaroid of liquid crystal two sides, the direction of the absorption axiss of the second wiregrating polaroid and first wire grid polaroid is vertical；Third polaroid, the side positioned at color membrane substrates far from array substrate, third polaroid are identical as the direction of absorption axiss of the second wiregrating polaroid；Display module includes that infrared light shows that stage and visible light show the stage, shows the stage in infrared light, display module shows infrared light；The stage is shown in visible light, and display module shows visible light.So realize the technical effect that display module infrared light and visible light intersect display or show simultaneously.
Description
Technical field
The present invention relates to field of display technology, more particularly, to a kind of display module and display device.
Background technique
Liquid crystal display is the display equipment of planar ultra-thin, it is made of a certain number of colored or monochrome pixels, is placed
In front of light source or reflecting surface.Liquid crystal display power consumption is very low, therefore is favored by engineer, suitable for using the electricity of battery
Sub- equipment.Liquid crystal display on existing market is largely backlight liquid crystal display comprising shell is set in shell
Liquid crystal display panel and be set to the intracorporal backlight module of shell.Traditional liquid crystal display panel is by a piece of array substrate and a piece of
Color membrane substrates are bonded, and form pixel electrode and public electrode in array substrate and the relative inner of color membrane substrates respectively, and
Liquid crystal is poured between array substrate and color membrane substrates, its working principle is that by applying between pixel electrode and public electrode
Driving voltage controls the rotation of the liquid crystal molecule in liquid crystal layer using the electric field formed between pixel electrode and public electrode,
The light refraction of backlight module is come out and generates picture.
Existing backlight module realizes that whole face is uniformly sent out by using visible LED, collocation light guide plate and optical film material
Light, to realize the display of liquid crystal display.But available liquid crystal display technology is not particularly suited for red mainly for visible light
Outer light.Therefore, liquid crystal display how to be made to realize that the display of infrared light becomes one of the technical problems that are urgent to solve at this stage.
Summary of the invention
In view of this, can be realized infrared light the present invention provides a kind of display module and display device and visible light handed over
Technical effect fork display or shown simultaneously.
In a first aspect, the application provides a kind of display module, comprising: display panel and positioned at the display panel side
Backlight module；The display panel includes:
The array substrate and color membrane substrates that are oppositely arranged and between the array substrate and the color membrane substrates
Liquid crystal, the array substrate are located at the color membrane substrates close to the side of the backlight module；
Along the direction perpendicular to plane where underlay substrate, it is oppositely arranged on the first wire grid polaroid of the liquid crystal two sides
With the second wiregrating polaroid, the direction of the absorption axiss of the second wiregrating polaroid and the first wire grid polaroid is vertical；
Third polaroid, the side positioned at the color membrane substrates far from the array substrate, the third polaroid and institute
The direction for stating the absorption axiss of the second wiregrating polaroid is identical；
The display module includes that infrared light shows that stage and visible light show the stage, shows the stage in the infrared light,
The display module shows infrared light；The stage is shown in the visible light, and the display module shows visible light.
Second aspect, the application also provide the first display device, including display module, which is the application institute
The display panel of offer.
Compared with prior art, display module and display device provided by the invention at least realize following beneficial effect
Fruit:
In display module and display device provided herein, along the direction perpendicular to plane where array substrate, draw
The first wire grid polaroid and the second wiregrating polaroid for entering to be oppositely arranged on liquid crystal two sides, compared to conventional iodine polarizing piece,
Wiregrating polaroid all has preferable polarized light property in infrared band and visible light wave range, so that display module and display dress
It sets and shows that the stage can normally show infrared light in infrared light, show that the stage can normally show visible light in visible light, and
Infrared display and visible display can carry out simultaneously or timesharing carries out, so that display module and display device have infrared light
The function of intersecting display with visible light or show simultaneously, to expand the application range of display module and display device.In addition,
The application also introduces third polaroid far from the side of array substrate in color membrane substrates, which advantageously reduces
The surface reflectivity of two wiregrating polaroids is conducive to be promoted to be conducive to be promoted the contrast of display module and display device
The usage experience effect of user.
Certainly, implementing any of the products of the present invention specific needs while must not reach all the above technical effect.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 show a kind of top view of display module provided by the embodiment of the present application；
Fig. 2 show a kind of AA ' sectional view of display module in Fig. 1；
Fig. 3 show another AA ' sectional view of display module in Fig. 1；
Fig. 4 show another AA ' sectional view of display module in Fig. 1；
Fig. 5 show another AA ' sectional view of display module in Fig. 1；
Fig. 6 show another AA ' sectional view of display module in Fig. 1；
Fig. 7 show a kind of top view of light source included in backlight module；
Fig. 8 show another AA ' sectional view of display module in Fig. 1；
Fig. 9 show a kind of circuit connection diagram of LED provided by the embodiment of the present application；
Figure 10 show another AA ' sectional view of display module in Fig. 1；
Figure 11 show a kind of structural schematic diagram of display device provided by the embodiment of the present application.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Display panel in liquid crystal display does not shine usually, provides light source, existing backlight mould by backlight module for it
Group realizes that whole face uniformly shines by using visible LED, collocation light guide plate and optical film material, to realize liquid crystal display
Display.But available liquid crystal display technology is not particularly suited for infrared light mainly for visible light.Therefore, how to make liquid crystal
Show that device realizes that the display of infrared light becomes one of the technical problems that are urgent to solve at this stage.
In view of this, can be realized infrared light the present invention provides a kind of display module and display device and visible light handed over
Pitch the technical effect of display.
It is described in detail below with reference to the drawings and specific embodiments.
Fig. 1 show a kind of top view of display module provided by the embodiment of the present application, and Fig. 2 show in Fig. 1 and shows
A kind of AA ' sectional view of mould group, incorporated by reference to Fig. 1 and Fig. 2, the application provides a kind of display module 100, comprising: display panel 10
With the backlight module 20 for being located at 10 side of display panel；Display panel 10 includes:
The array substrate 11 being oppositely arranged and color membrane substrates 12 and between array substrate 11 and color membrane substrates 12
Liquid crystal 13, array substrate 11 are located at color membrane substrates 12 close to the side of backlight module 20；
Along the direction perpendicular to 11 place plane of array substrate, it is oppositely arranged on the first wire grid polaroid of 13 two sides of liquid crystal
31 and the second wiregrating polaroid 32, the second wiregrating polaroid 32 it is vertical with the direction of the absorption axiss of first wire grid polaroid 31；
Third polaroid 33, the side positioned at color membrane substrates 12 far from array substrate 11, third polaroid 33 and the second line
The direction of the absorption axiss of grid polaroid 32 is identical；
Display module 100 includes that infrared light shows that stage and visible light show the stage, shows the stage in infrared light, shows mould
100 display infrared light of group；The stage is shown in visible light, and display module 100 shows visible light.
It should be noted that a kind of relative position of backlight module 20 and display panel 10 that Fig. 2 is only schematically illustrated is closed
System, does not represent actual film layer quantity and thicknesses of layers.In addition, Fig. 2 also only embodies a kind of realization shape of backlight module 20
Formula, not to the specific restriction of 20 structure of backlight module.Shading rubber belt can be used in the edge of display panel 10 and backlight module 20
Fitting.
Specifically, incorporated by reference to Fig. 1 and Fig. 2, in display module 100 provided by the embodiment of the present application, along perpendicular to array
The direction of 11 place plane of substrate introduces the first wire grid polaroid 31 and the second wiregrating polarisation for being oppositely arranged on 13 two sides of liquid crystal
Piece 32, wiregrating polaroid herein for example can be WGF polaroid, i.e. Wire Grid polarizer Film, be it is a kind of by
The optical film material of nanoscale metal wire rod composition, the wiregrating polaroid can penetrate direction of an electric field entering perpendicular to wiregrating direction
Light is penetrated, and the light that direction of an electric field is parallel to wiregrating direction is reflected.Compared to conventional iodine polarizing piece, wiregrating polaroid is red
Wave section and visible light wave range all have preferable polarized light property, so that display module 100 shows stage energy in infrared light
Enough normal display infrared lights, show that the stage can normally show visible light in visible light, have infrared light and visible light intersects
The function of display, to expand the application range of display module 100.In addition, the application is also in color membrane substrates 12 far from array
The side of substrate 11 introduces third polaroid 33, which can for example have anti-reflection function, when by the third
When side of the second wiregrating polaroid 32 far from color membrane substrates 12 is arranged in polaroid 33, which is advantageously reduced
The surface reflectivity of second wiregrating polaroid 32 so that wiregrating polaroid through incident light ability be far longer than it is traditional
Polaroid, simultaneous contrast are also preferably promoted, and the market need for meeting nowadays high transmittance and high contrast LCD are conducive to
It asks, is conducive to the usage experience effect for promoting user.
It should be noted that the infrared light of the application display module shows that stage and visible light show that the stage can be intersection
, be also possible to be overlapped, that is to say, that infrared light show and visible light show can timesharing progress, can also carry out simultaneously.It is hot
When outer light is shown and visible light shows while carrying out, by human eye only it is observed that the content that visible light is shown；It is specific when wearing
When equipment, the content that infrared light and visible light are shown can be observed simultaneously.When infrared light show and visible light show timesharing into
When row, the stage is shown in infrared light, wearing particular device can be observed the content that infrared light is shown；Rank is shown in visible light
Section, can observe directly the content that visible light is shown.
Optionally, Fig. 2 is referred to, first wire grid polaroid 31 is located at side of the array substrate 11 far from color membrane substrates 12,
Second wiregrating polaroid 32 is located at side of the color membrane substrates 12 far from array substrate 11；In such mode, first wire grid polaroid
31 and second wiregrating polaroid 32 be located at the side of array substrate 11 and color membrane substrates 12 far from liquid crystal 13, be equivalent to and be located at
Outside liquid crystal cell, when forming wiregrating polaroid, manufacture craft is relatively simple, has both had preferably inclined to visible light and infrared light
Light characteristic, and be conducive to be promoted the production efficiency of display module 100.
In addition to above-mentioned implementation, the position of first wire grid polaroid 31 and the second wiregrating polaroid 32 may be additionally located at liquid crystal
In box, Fig. 3 is referred to, first wire grid polaroid 31 is located at array substrate 11 close to the side of color membrane substrates 12, and the second wiregrating is inclined
Mating plate 32 is located at color membrane substrates 12 close to the side of array substrate 11, wherein Fig. 3 show the another of display module 100 in Fig. 1
Kind AA ' sectional view.In such implementation, first wire grid polaroid 31 and the second wiregrating polaroid 32 are before liquid crystal is at box
It is formed, after liquid crystal is at box, first wire grid polaroid 31 and the second wiregrating polaroid 32 are presented as embedding structure, such structure
Wiregrating polaroid equally have preferable polarizing properties to visible light and infrared light, equally can be realized display module 100
Infrared light and visible light intersect display function, and work as first wire grid polaroid 31 and the second wiregrating polaroid 32 being placed in liquid crystal
When in box, the integral thickness for reducing display module is also helped, meets the slimming demand to display module.
Optionally, Fig. 2 is referred to, in display module 100 provided by the embodiment of the present application, third polaroid 33 is anti-reflective
Polaroid is penetrated, when first wire grid polaroid 31 is located at side of the array substrate 11 far from color membrane substrates 12, the second wiregrating polaroid
32 when being located at side of the color membrane substrates 12 far from array substrate 11, and anti-reflective polarizing plate is located at the second wiregrating polaroid 32 far from color
The side of ilm substrate 12.
Specifically, when first wire grid polaroid 31 and the second wiregrating polaroid 32 are located at outside 13 box of liquid crystal, the application draws
The anti-reflective polarizing plate entered is located at the second side of the wiregrating polaroid 32 far from color membrane substrates 12, at this point, the anti-reflective polarizing plate
The possibility that the second wiregrating polaroid 32 is scratched far from the surface of color membrane substrates 12 can be effectively reduced, meanwhile, the anti-reflective of introducing
The surface reflectivity that polaroid advantageously reduces the second wiregrating polaroid 32 is penetrated, so that wiregrating polaroid is through incident light
Ability is far longer than traditional polaroid, thus is conducive to be promoted the whole transmitance of display module 100, in addition, by second
After the surface reflectivity of wiregrating polaroid 32 reduces, so that the contrast of display module 100 is also preferably promoted, to have
Conducive to the market demand for meeting nowadays high transmittance and high contrast LCD, be conducive to the usage experience effect for promoting user.
The effect before patch anti-reflective polarizing plate and after patch anti-reflective polarizing plate is carried out below with reference to test data
Illustrate, table 1 show data comparison table before and after patch AR.
1 display module of table pastes contrast table before and after AR
As can be seen from Table 1, display module is after pasting AR polaroid, and black and white state brightness decreases, and white point chromaticity is partially yellow,
But after pasting AR polaroid, contrast is promoted to 315 from 226, than improving 39.58% before patch AR polaroid, therefore,
It further proves, the anti-reflective polarizing plate of introducing advantageously reduces the surface reflectivity of the second wiregrating polaroid 32, by the second line
After the surface reflectivity of grid polaroid 32 reduces, so that the contrast of display module 100 is preferably promoted.
It should be noted that anti-reflective polarizing plate provided by the embodiment of the present application is for example chosen as AR (Anti-
Reflection) polaroid, usual AR polaroid are to carry out AR to polaroid to handle, such as can be on the surface of polaroid
Stacking lures electric body thin film, so that AR reflector plate has good anti-reflective function, AR reflector plate is being set to second
When the surface of wiregrating polaroid 32, be conducive to the surface reflectivity for substantially reducing the second wiregrating polaroid 32, to promote second
The transmitance and contrast of wiregrating polaroid 32.Meanwhile AR reflector plate is also equipped with preferable anti-scratch performance, is disposed at
When the surface of two wiregrating polaroids 32, preferable protective effect can be played to the surface of the second wiregrating polaroid 32.
Optionally, Fig. 4 show another AA ' sectional view of display module 100 in Fig. 1, and display panel 10 further includes
Four polaroids 34, the 4th polaroid 34 are located at side of the array substrate 11 far from color membrane substrates 12, the 4th polaroid 34 and first
The direction of the absorption axiss of wiregrating polaroid 31 is identical；Third polaroid 33 and the 4th polaroid 34 are iodine polarizing piece.This Shen
Third polaroid 33 please is introduced far from the side of array substrate 11 in color membrane substrates 12, and in array substrate 11 far from color membrane substrates
12 side introduces the 4th polaroid 34, and third polaroid 33 is identical as the direction of absorption axiss of the second wiregrating polaroid 32, from
And the light through the second wiregrating polaroid 32 is not stopped by third polaroid 33, the 4th polaroid 34 and first wire grid are inclined
The direction of the absorption axiss of mating plate 31 is identical, so that the light through first wire grid polaroid 31 is not hindered by the 4th polaroid 34
Gear.When introducing iodine polarizing piece, iodine polarizing piece advantageously reduces the surface reflectivity of wiregrating polaroid, reduces black state brightness.
Fig. 4 shows first wire grid polaroid 31 and when the second wiregrating polaroid 32 is located in 13 box of liquid crystal, third polarisation
A kind of positional relationship of piece 33 and the 4th polaroid 34 optionally, refers to Fig. 5, Fig. 5 institute in addition to such relative positional relationship
It is shown as another AA ' sectional view of display module 100 in Fig. 1, when first wire grid polaroid 31 is located at array substrate 11 far from color
When the side of ilm substrate 12, the second wiregrating polaroid 32 are located at side of the color membrane substrates 12 far from array substrate 11, third polarisation
Piece 33 is located at the second side of the wiregrating polaroid 32 far from color membrane substrates 12, and it is remote that the 4th polaroid 34 is located at the first sweatshirt polaroid
Side from array substrate 11.
Specifically, Fig. 5 is referred to, since third polaroid 33 is located at the second wiregrating polaroid 32 far from color membrane substrates 12
Side, therefore the third polaroid 33 introduced can effectively weaken the second wiregrating polaroid 32 and extraneous reflection, be conducive to drop
The black state brightness of low display module 100 improves contrast.Simultaneously as the 4th polaroid 34 is located at first wire grid polaroid 31
Side far from array substrate 11, therefore the 4th polaroid 34 introduced can effectively weaken first wire grid polaroid 31 and the external world
Reflection, be equally beneficial for reduce display module 100 black state brightness, improve contrast.In addition, third polaroid 33 and the 4th
Polaroid 34 is located at the surface of the second wiregrating polaroid 32 and first wire grid polaroid 31 far from liquid crystal 13, additionally it is possible to
Protection is played the role of on the surface of one wiregrating polaroid 31 and the second wiregrating polaroid 32, effectively prevent first wire grid polaroid 31
The possibility being scratched with the second wiregrating polaroid 32.
Optionally, Fig. 6 is referred to, Fig. 6 show another AA ' sectional view of display module 100 in Fig. 1, works as First Line
It is remote that grid polaroid 31 is located at side of the array substrate 11 far from color membrane substrates 12, the second wiregrating polaroid 32 is located at color membrane substrates 12
When side from array substrate 11, third polaroid 33 is located at the second wiregrating polaroid 32 close to the side of color membrane substrates 12, and
Four polaroids 34 are located at the first sweatshirt polaroid close to the side of array substrate 11.
Specifically, continuing with referring to Fig. 6, reflected intensity between usual second wiregrating polaroid 32 and color membrane substrates 12 compared with
Height, after the application introduces third polaroid 33 between the second wiregrating polaroid 32 and color membrane substrates 12, the third polaroid 33
The reflection between the second wiregrating polaroid 32 and color membrane substrates 12 can greatly be weakened, being more advantageous to reduces display module 100
Black state brightness, it is more obvious for the promotion effect of contrast.Similarly, between first wire grid polaroid 31 and array substrate 11
Reflected intensity it is also higher, after the application introduces the 4th polaroid 34 between first wire grid polaroid 31 and array substrate 11,
4th polaroid 34 can greatly weaken the reflection between first wire grid polaroid 31 and array substrate 11, with third polarisation
Piece 33 cooperates, and is more conducive to reducing the black state brightness of display module 100, is more advantageous to pair for promoting display module 100
Than degree, to be more conducive to promoting the usage experience effect of user.
Usual WGF polaroid has two kinds of high contrast WGF polaroid and high transmittance WGF polaroid, when using WGF polarisation
When piece is as first wire grid polaroid and the second wiregrating polaroid, applicant is respectively adopted two kinds of by test simulation
When WGF polaroid is as wiregrating polaroid in the application, the case where introducing conventional polarizers and being not introduced into conventional polarizers pair
Than referring to table 2, table 2 is contrast and penetrance situation contrast table.
The display module and the application display module contrast table of 2 prior art of table
In the test for obtaining data corresponding to above-mentioned table 2, common polaroid is common SFT polaroid (band APCF), right
The structure for answering display module in the prior art is display panel (array substrate, color membrane substrates and liquid crystal)+upper and lower two polaroids.
The application structure shown in fig. 6, i.e., the side of upper and lower two high contrast WGF polaroids towards liquid crystal be respectively set two it is general
Logical polaroid, so that the contrast of entire display module is promoted compared to being enhanced for existing display module from 995
To 1028, penetrance is slightly decreased, therefore the display module collocation high contrast WGF polaroid of structure shown in Fig. 6, is both able to achieve
Display or timesharing are shown while infrared light and visible light, the promotion of contrast are also helped, so that the display picture of display panel
Face is finer and smoother.The display module collocation high contrast WGF polaroid or high transmittance WGF polaroid of structure described in Fig. 5, Fig. 6
The display module collocation high transmittance WGF polaroid of shown structure, although contrast and penetrance are lost, but lose simultaneously
Less, equally effectively realize infrared light and visible light and meanwhile display or timesharing display function.
Optionally, Fig. 2-Fig. 6 is referred to, in display module 100 provided by the embodiment of the present application, backlight module 20 includes
Frame 21 and light guide plate 25 are accommodated, receiving frame 21 is including substrate 22 and around the extension 23 of substrate 22, substrate 22 and extension 23
An accommodating space 24 is formed, light guide plate 25 is located in accommodating space 24；
Fig. 7 is referred to, Fig. 7 show a kind of top view of light source included in backlight module 20, and backlight module 20 is also
It include: first light source 81 and second light source 82, first light source 81 and second light source 82 individually control；First light source 81 includes multiple
First LED 71, second light source 82 include multiple 2nd LED 72；Wherein, the wavelength of first light source 81 is λ 1, second light source 82
Wavelength be λ 2,2≤780nm of 780nm < λ 1≤1310nm, 380nm≤λ.
It should be noted that Fig. 7 only representatively illustrates a kind of arrangement mode of the first LED and the 2nd LED, do not represent
Actual size and number, and in some other embodiments of the application, other also can be used in the first LED and the 2nd LED
Arrangement mode, for example, whole the first LED of setting of odd-numbered line, whole setting the 2nd LED etc. of even number line, the application to this not into
Row is specific to be limited.
Specifically, the application introduces two kinds of light sources in backlight module 20, and the wavelength 780nm < λ 1 of first light source 81≤
1310nm is capable of providing infrared light；Wavelength 2≤780nm of 380nm≤λ of second light source 82, is capable of providing visible light；Due to
One light source 81 and second light source 82 individually control, therefore can realize that the timesharing of different-waveband light i.e. infrared light and visible light shows skill
Art or simultaneously display technology；Under normal display conditions, the first LED 71 can control to issue visible light；In Special display condition
Under, it can control the 2nd LED 72 to issue infrared light, then other equipment of arranging in pairs or groups obtain the content of infrared display, to realize hidden aobvious
The purpose shown.The mode that first light source 81 and second light source 82 in the application individually control, it can control first light source 81
It shines simultaneously with second light source 82, also can control first light source 81 and 82 timesharing of second light source to shine, so that display module
Mid-infrared light and visible light display control are more flexible, can satisfy unused application demand.
Optionally, continuing with-Fig. 6 referring to fig. 2, backlight module 20 is side entrance back module 20, the first LED 71 and the
Two LED 72 are arranged alternately in extension 23 towards the side of light guide plate 25, that is, are located at the side of light guide plate 25, the first LED 71
Or the 2nd the light of LED 72 conduct from the side of light guide plate 25 to light guide plate 25, multiple diffusions are usually distributed on light guide plate 25
Point, when light is mapped to diffusion point, reflected light can be spread toward all angles, then will destroy conditioned reflex by 25 front of light guide plate
It projects.Using various densitys, diffusion point not of uniform size, 25 uniformly light-emitting of light guide plate can be made.Uniform light will be provided to back
Other optical films in optical mode group 20, so that finally providing uniform light to display panel 10.It should be noted that backlight mould
The optical film of group 20 for example may include diffusion sheet, brightness enhancement film etc., and the application is to this without specifically limiting.
Backlight module 20 is in addition to using side entering type structure, and optionally, backlight module 20 can also be down straight aphototropism mode set 20,
First LED 71 and the 2nd LED 72 are arranged alternately in substrate 22 towards the side of light guide plate 25, such as refer to Fig. 8, Fig. 8 institute
It is shown as another AA ' sectional view of display module 100 in Fig. 1, in the embodiment, the first LED 71 and the 2nd LED 72, which are located at, to be led
Tabula rasa 25 injects light guide plate 25, light guide plate 25 towards the light that 22 first side of substrate, the first LED 71 and the 2nd LED 72 are issued
Effect be guide light scattering direction, for improving the brightness of display panel 10, and ensure the uniformity of panel luminance.
Certainly, in some other embodiments of the application, side entering type is also can be used in backlight module 20 and straight-down negative combines
Mode, such as the first LED 71 is distributed in the side of light guide plate 25, and the 2nd LED 72 is distributed in the lower section etc. of light guide plate 25,
The application is to this without specifically limiting.
Optionally, Fig. 9 show a kind of circuit connection diagram of LED provided by the embodiment of the present application, refers to figure
9, multiple first LED 71 are connected in series to form the first circuit 91, and multiple 2nd LED 72 are connected in series to form second circuit 92；
Backlight module 20 further includes ON-OFF control circuit, and ON-OFF control circuit is electrically connected by first switch with the first circuit 91
It connects, ON-OFF control circuit is electrically connected by second switch with second circuit 92.
Specifically, each first LED 71 connects and is uniformly controlled by first switch in the application, each 2nd LED 72 series connection
And be uniformly controlled by second switch, first switch and the second switch is uniformly controlled by ON-OFF control circuit, when needing visible light aobvious
When showing, ON-OFF control circuit controls first switch closure, so that each first LED 71 shines；When needing infrared light to show
When, ON-OFF control circuit controls second switch closure, so that each 2nd LED 72 shines.In practical application, showing
Settable two control buttons in mould group 100, such as the first button and the second button, two control buttons respectively with display module
ON-OFF control circuit connection inside 100, when user presses the first button, ON-OFF control circuit receives the first button and sends
Control signal, control first switch closure, each first LED 71 shine, realize visible light show.When needing infrared display,
User can press the second button, and when control circuit of opening the light receives the control signal that the second button is sent, control second switch is closed
It closes, each 2nd LED 72 shines, to realize infrared display function.When needing infrared light to show and visible light while when showing,
The first button and the second button can be pressed simultaneously so that the first LED and the 2nd LED simultaneously shine, while realize infrared display and
Visible light is shown, it should be noted that in this case, by human eye only it is observed that the content that visible light is shown；Work as pendant
When wearing particular device, the content that infrared light and visible light are shown can be observed simultaneously.
Optionally, Figure 10 show another AA ' sectional view of display module in Fig. 1, and referring to Figure 10, backlight module 20
Packet third light source 83, third light source 83 are blue light source；
Color membrane substrates 12 include quantum dot color blocking 90, and the blue light excitation quantum dot color blocking 90 that backlight module 20 issues issues red
Outer light and visible light.
Specifically, referring to Figure 10, in this embodiment, backlight module 20 only includes a kind of blue light source, in color film base
Quantum dot color blocking 90 is provided on plate 12, the blue light that blue light source issues in backlight module 20 can excite quantum dot color blocking 90 to send out
Infrared light and visible light out.It should be noted that infrared light and visible light are excited simultaneously, i.e., infrared in the embodiment
Light show and visible light show be while, when directly observation when, the content that visible light is shown can be observed；When arranging in pairs or groups, other are set
It is standby in use, can will be seen that light filters out for example containing the equipment of optical filter, recycle equipment to obtain the red of display module 100
The content that outer light is shown, to realize the purpose of hidden display.In this way, equally can be realized the display function of visible light and infrared light
Energy.
Based on the same inventive concept, the application also provides a kind of display device 200, and 1, Figure 11 show this referring to Figure 1
Apply for a kind of structural schematic diagram of display device 200 provided by embodiment, which includes display module, this is aobvious
Show that mould group is any display module 100 provided by the above embodiments of the present application.It should be noted that provided herein is aobvious
The embodiment of showing device 200 can be found in the embodiment of above-mentioned display module 100, and something in common repeats no more.It is provided herein
Display device 200 can be with are as follows: mobile phone, tablet computer, television set, display, laptop, Digital Frame, navigator etc.
Any products or components having a display function.
Through the foregoing embodiment it is found that display module provided by the invention and display device, at least realizing following has
Beneficial effect:
In display module and display device provided herein, along the direction perpendicular to plane where underlay substrate, draw
The first wire grid polaroid and the second wiregrating polaroid for entering to be oppositely arranged on liquid crystal two sides, compared to conventional iodine polarizing piece,
Wiregrating polaroid all has preferable polarized light property in infrared band and visible light wave range, so that display module and display dress
It sets and shows that the stage can normally show infrared light in infrared light, show that the stage can normally show visible light in visible light, have
Infrared light and visible light intersect the function of display, to expand the application range of display module and display device.In addition, this
Application also introduces third polaroid far from the side of array substrate in color membrane substrates, which advantageously reduces second
The surface reflectivity of wiregrating polaroid is conducive to be promoted and use to be conducive to be promoted the contrast of display module and display device
The usage experience effect at family.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (12)
1. a kind of display module characterized by comprising display panel and the backlight module positioned at the display panel side；
The display panel includes:
The array substrate and color membrane substrates that are oppositely arranged and the liquid crystal between the array substrate and the color membrane substrates,
The array substrate is located at the color membrane substrates close to the side of the backlight module；
Along the direction perpendicular to plane where array substrate, it is oppositely arranged on the first wire grid polaroid and the of the liquid crystal two sides
The direction of the absorption axiss of two wiregrating polaroids, the second wiregrating polaroid and the first wire grid polaroid is vertical；
Third polaroid, the side positioned at the color membrane substrates far from the array substrate, the third polaroid and described the
The direction of the absorption axiss of two wiregrating polaroids is identical；
The display module includes that infrared light shows that stage and visible light show the stage, shows the stage in the infrared light, described
Display module shows infrared light；The stage is shown in the visible light, and the display module shows visible light.
2. display module according to claim 1, which is characterized in that the first wire grid polaroid is located at the array base
Side of the plate far from the color membrane substrates, the second wiregrating polaroid are located at the color membrane substrates far from the array substrate
Side；Alternatively,
The first wire grid polaroid is located at the array substrate close to the side of the color membrane substrates, the second wiregrating polarisation
Piece is located at the color membrane substrates close to the side of the array substrate.
3. display module according to claim 2, which is characterized in that the third polaroid is anti-reflective polarizing plate, when
The first wire grid polaroid is located at side, the second wiregrating polaroid position of the array substrate far from the color membrane substrates
When side of the color membrane substrates far from the array substrate, the anti-reflective polarizing plate is located at the second wiregrating polaroid
Side far from the color membrane substrates.
4. display module according to claim 2, which is characterized in that the display panel further includes the 4th polaroid, institute
It states the 4th polaroid and is located at side of the array substrate far from the color membrane substrates, the 4th polaroid and the First Line
The direction of the absorption axiss of grid polaroid is identical；The third polaroid and the 4th polaroid are iodine polarizing piece.
5. display module according to claim 4, which is characterized in that when the first wire grid polaroid is located at the array
Side of the substrate far from the color membrane substrates, the second wiregrating polaroid are located at the color membrane substrates far from the array substrate
Side when, the third polaroid is located at the side of the second wiregrating polaroid far from the color membrane substrates, the described 4th
Polaroid is located at the side of the first sweatshirt polaroid far from the array substrate.
6. display module according to claim 4, which is characterized in that when the first wire grid polaroid is located at the array
Side of the substrate far from the color membrane substrates, the second wiregrating polaroid are located at the color membrane substrates far from the array substrate
Side when, the third polaroid is located at the second wiregrating polaroid close to the side of the color membrane substrates, the described 4th
Polaroid is located at the first sweatshirt polaroid close to the side of the array substrate.
7. display module according to claim 1, which is characterized in that the backlight module includes accommodating frame and light guide plate,
The receiving frame includes substrate and the extension around the substrate, and the substrate and the extension form an accommodating space,
The light guide plate is located in the accommodating space；
The backlight module further include: first light source and second light source, the first light source and the second light source individually control；
The first light source includes multiple first LED, and the second light source includes multiple 2nd LED；Wherein, the wave of the first light source
A length of λ 1, the wavelength of the second light source are λ 2,2≤780nm of 780nm < λ 1≤1310nm, 380nm≤λ.
8. display module according to claim 7, which is characterized in that the backlight module is side entrance back module, institute
The first LED and the 2nd LED is stated to be arranged alternately in the extension towards the side of the light guide plate.
9. display module according to claim 7, which is characterized in that the backlight module is down straight aphototropism mode set, institute
The first LED and the 2nd LED is stated to be arranged alternately in the substrate towards the side of the light guide plate.
10. display module according to claim 7, which is characterized in that multiple first LED are connected in series to form first
Circuit, multiple 2nd LED are connected in series to form second circuit；
The backlight module further includes ON-OFF control circuit, and the ON-OFF control circuit passes through first switch and first circuit
Electrical connection, the ON-OFF control circuit are electrically connected by second switch with the second circuit.
11. display module according to claim 1, which is characterized in that the backlight module packet third light source, the third
Light source is blue light source；
The color membrane substrates include quantum dot color blocking, and it is red that the blue light that the backlight module issues excites the quantum dot color blocking to issue
Outer light and visible light.
12. a kind of display device, which is characterized in that any display module including claim 1 to 11.
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| CN201910706582.8A CN110441953A (en) | 2019-08-01 | 2019-08-01 | Display module and display device |
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|---|---|---|---|
| CN201910706582.8A CN110441953A (en) | 2019-08-01 | 2019-08-01 | Display module and display device |
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