CN105629542B - Double-side display device - Google Patents
Double-side display device Download PDFInfo
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- CN105629542B CN105629542B CN201511021859.1A CN201511021859A CN105629542B CN 105629542 B CN105629542 B CN 105629542B CN 201511021859 A CN201511021859 A CN 201511021859A CN 105629542 B CN105629542 B CN 105629542B
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- display panel
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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
-
- 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
- G02F1/133553—Reflecting elements
- G02F1/133555—Transflectors
-
- 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
- G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
-
- 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
- G02F1/133342—Constructional arrangements; Manufacturing methods for double-sided displays
-
- 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
- G02F1/133553—Reflecting elements
- G02F1/133555—Transflectors
- G02F1/133557—Half-mirrors
Abstract
The invention discloses a kind of double-side display devices comprising: the first backlight module (10), double face display panel (20) and the second backlight module (30) of sequence setting from top to bottom；Wherein, double face display panel (20) includes: first substrate (21), is set between the first backlight module (10) and the second backlight module (30)；The second substrate (22) is set between first substrate (21) and the second backlight module (30)；And multiple display units (23), array arrangement is on surface of the first substrate (21) towards the second substrate (22)；Multiple switch element (24) is spaced each other and is arranged in the second substrate (22) towards on the surface of first substrate (21)；Wherein, switch element (24) corresponds between two adjacent display units (23).The present invention forms double face display panel using two substrates, compared with prior art, production cost can be greatly lowered, and be conducive to develop towards lightening direction.
Description
Technical field
The invention belongs to field of display technology, in particular, being related to a kind of double-side display device.
Background technique
With the development of display technology, people, which often need to use, to show the double-sided display dress of image in display two sides
It sets.This double-side display device can be applied to communications industry, government's window, financial industry, transportation industry and various service trades
The big public place of the various flows of the people such as business hall, such as airport, railway station, subway station, dining room, therefore double-side display device
It has broad application prospects.
Common double-sided liquid crystal display device is usually made of two liquid crystal display panels back to setting, and each liquid crystal
Panel is made of two pieces of glass substrates, so that double-sided liquid crystal display device be made at least to need four pieces of glass substrate compositions, in this way meeting
Cause double-sided liquid crystal display device with high costs, while being unfavorable for the lightening development of double-sided liquid crystal display device.
Summary of the invention
In order to solve the above-mentioned problems of the prior art, the purpose of the present invention is to provide a kind of double-side display device,
Comprising: the first backlight module and the second backlight module that are oppositely arranged and be set to first backlight module and described
Double face display panel between two backlight modules；First backlight module and second backlight module are provided which the first polarization
Light is to the double face display panel；Wherein, the double face display panel includes: first substrate, is set to the first backlight mould
Between block and second backlight module；The second substrate is set between the first substrate and second backlight module；With
And multiple display units, array arrangement is in the first substrate towards on the surface of the second substrate；Multiple switch element,
It is spaced each other and is arranged in the second substrate towards on the surface of the first substrate；Wherein, the switch element corresponds to
Between two adjacent display units.
Further, the double-side display device further include: first choice sexual reflex element is set to first backlight
On module, for selectively reflecting first polarised light and selectively transmiting the second polarised light；And second selection
Sexual reflex element is set under first backlight module, for selectively reflecting first polarised light and selectivity
Ground transmits the second polarised light；Wherein, the polarization direction of second polarised light is different from the polarization direction of first polarised light.
Further, the double face display panel further include: be set to the first substrate towards the second substrate
Clear area on surface and between the display unit.
Further, the double face display panel further include: be set to the first substrate towards the second substrate
The first black matrix" on surface and between each display unit, and it is set to the multiple switch element and described
The second black matrix" between two substrates and between each display unit.
Further, first backlight module includes: the first light guide plate, has the first light-emitting surface and positioned at described first
First light incident sides of light-emitting surface side, first light-emitting surface are arranged towards the first substrate；First choice transmission member
Part is arranged, for selectively transmiting first polarised light adjacent to first light incident sides.
Further, second backlight module includes: the second light guide plate, has the second light-emitting surface and positioned at described second
Second light incident sides of light-emitting surface side, second light-emitting surface are arranged towards the second substrate；Second selective transmission member
Part is arranged, for selectively transmiting first polarised light adjacent to second light incident sides.
Further, the double-side display device further include: the first anti-reflection layer is set to the first choice sexual reflex
On element；Second anti-reflection layer is set under the second selective reflecting element；Wherein, first anti-reflection layer
It is used to prevent the strong reflection of external ambient light with second anti-reflection layer.
Another object of the present invention, which also resides in, provides a kind of double-side display device comprising: the third backlight being oppositely arranged
Module and the 4th backlight module and the double-sided display being set between the third backlight module and the 4th backlight module
Panel；The third backlight module and the 4th backlight module are provided which display light to the double face display panel；Wherein, institute
Stating double face display panel includes: third substrate, is set between the third backlight module and the 4th backlight module；4th
Substrate is set between the third substrate and the 4th backlight module；And multiple first switching elements, the row of being spaced each other
Cloth is in the third substrate towards on the surface of the tetrabasal；Multiple first display units, array arrangement is described more
On a first switching element；Wherein, the first switching element corresponds between two adjacent the first display units；It is multiple
Second switch element is spaced each other and is arranged in the tetrabasal towards on the surface of the third substrate；Wherein, described
Two switch elements correspond between two adjacent the first display units；Multiple second display units, array arrangement is described more
On a second switch element；Wherein, second display unit is relative to first display unit.
Further, the double face display panel further include: be set to the third substrate and the multiple first switch
Third black matrix" between element；Wherein, the third black matrix" corresponds to the first switching element；It is set to described
The 4th black matrix" between tetrabasal and the multiple second switch element；Wherein, the 4th black matrix" corresponds to
The second switch element.
Further, the third backlight module and the 4th backlight module do not provide display light to described two-sided simultaneously
Display panel；Wherein, when the double face display panel carries out the display of the first side, the 4th backlight module provide display light to
The double face display panel；When the double face display panel carries out second side display, the third backlight module provides display
Light gives the double face display panel.
Beneficial effects of the present invention: the present invention forms double face display panel, compared with prior art, energy using two substrates
Production cost is enough greatly lowered, and is conducive to develop towards lightening direction.
Detailed description of the invention
What is carried out in conjunction with the accompanying drawings is described below, above and other aspect, features and advantages of the embodiment of the present invention
It will become clearer, in attached drawing:
Fig. 1 is the structural schematic diagram of the double-side display device of first embodiment according to the present invention；
Fig. 2 is the structural schematic diagram of the double-side display device of second embodiment according to the present invention；
Fig. 3 is the structural schematic diagram of the double-side display device of third embodiment according to the present invention；
Fig. 4 is the structural schematic diagram of the double-side display device of fourth embodiment according to the present invention；
Fig. 5 is the structural schematic diagram of the double-side display device of fifth embodiment according to the present invention.
Specific embodiment
Hereinafter, with reference to the accompanying drawings to detailed description of the present invention embodiment.However, it is possible to come in many different forms real
The present invention is applied, and the present invention should not be construed as limited to the specific embodiment illustrated here.On the contrary, providing these implementations
Example is in order to explain the principle of the present invention and its practical application, to make others skilled in the art it will be appreciated that the present invention
Various embodiments and be suitable for the various modifications of specific intended application.
In the accompanying drawings, in order to understand device, the thickness of layer and region is exaggerated.
Term " first ", " second " etc. herein can be used to describe various elements although will be appreciated that, these
Element should not be limited by these terms.These terms are only used to distinguish an element with another element.
Also it will be appreciated that it can be straight when element is referred to as or is formed in another element " on " or " under "
Another element up or down is connect or is formed in, or there may also be intermediary elements.
Fig. 1 is the structural schematic diagram of the double-side display device of first embodiment according to the present invention.
Referring to Fig.1, the double-side display device of first embodiment according to the present invention includes: the first backlight module 10, setting
Double face display panel 20 under the first backlight module 10, the second backlight module being set under double face display panel 20
30。
In the present embodiment, the first backlight module 10 and the second backlight module 30 all provide the first polarised light (such as P light)
To double face display panel 20.Certainly, as another embodiment of the present invention, the first backlight module 10 and the second backlight module 30
The second polarised light (such as S light) can also all be provided to double face display panel 20.Here, the first polarised light and the second polarised light
Polarization direction is vertical.
The double face display panel 20 of first embodiment according to the present invention includes: first substrate 21, the second substrate 22, multiple
Display unit 23, multiple switch element 24.In the present embodiment, first substrate 21 can be CF color membrane substrates, the second substrate 22
It can be array substrate, but the present invention is not restricted to this.
Specifically, first substrate 21 is set between the first backlight module 10 and the second backlight module 30, the second substrate
22 are set between first substrate 21 and the second backlight module 30.
Multiple display units 23, which are spaced each other, is arranged in first substrate 21 towards on the surface of the second substrate 22.In this reality
It applies in example, it is preferable that each display unit 23 is red display unit or green display unit or blue display unit；But
The present invention is not restricted to this, for example, each display unit 23 may include two identical or different color display units, or
More identical or different color display units of person.Here, the color display unit can be red display unit or
Green display unit or blue display unit.
Here, it should be noted that since the bilateral of double face display panel 20 does not show identical or different picture simultaneously
Face, double face display panel 20 can carry out upside display using all display units 23 or downside is shown.Of course, it is to be understood that
It is that double face display panel 20 can also be used part display unit 23 and carry out upside display, and utilize another part display unit 23
Carry out downside display；Wherein, the part display unit 23 is set between another part display unit 23, for example, institute
The display unit 23 that part display unit 23 is odd column is stated, another part display unit 23 is the display unit of even column
23；But the present invention is not limited thereto.
Multiple switch element 24, which is spaced each other, is arranged in the second substrate 22 towards on the surface of first substrate 21, and every
A switch element 24 corresponds to the interval between two adjacent display units 23 of (or relative to).In the present embodiment, it opens
Closing element 24 can be for example thin film transistor (TFT) TFT, but the present invention is not restricted to this.
In addition, the two sides of the second substrate 22 each extend over, be respectively formed corresponding first side show it is (i.e. two-sided to show in Fig. 1
Show that the upside of panel 20 is shown) and second side show the binding of (i.e. in Fig. 1, the downside of double face display panel 20 is shown)
(Bonding) area.Herein, the two binding areas are bonded a flexible printed circuit board (Flexible Printed respectively
Circuit；FPC)25；Wherein, one of the two flexible printed circuit boards 25 are connected to an integrated circuit (IC) chip, to double
The first side display of face display panel 20 carries out signal control；And the two flexible printed circuit boards 25 it is another be connected to it is another
Integrated circuit (IC) chip carries out signal control with second side display to double face display panel 20.
In the present embodiment, since double face display panel 20 uses bilateral transmissive display, in order to avoid bilateral is aobvious
Show interfering with each other for picture, the bilateral of double face display panel 20 does not show identical or different picture simultaneously.In this way, the first back
Optical module 10 and the second backlight module 30 must not provide the first polarised light to double face display panel 20 simultaneously.Certainly, in this hair
In bright, double face display panel 20 can also be used, and bilateral shows identical picture simultaneously.
In the present embodiment, double face display panel 20 carries out second by the first polarised light that the first backlight module 10 provides
Side shows (i.e. downside display), and the first polarised light progress that double face display panel 20 is provided by the second backlight module 30
Side shows (i.e. upside display).That is, when double face display panel 20 carries out the display of the first side, the second backlight module 30
The first polarised light is provided to double face display panel 20；And when double face display panel 20 carries out second side display, the first backlight mould
Block 10 provides the first polarised light to double face display panel 20.
As the second embodiment of the present invention, referring to Fig. 2, the second substrate 22 can also be extended with side, right respectively to be formed
Answer area binding (Bonding) that the first side is shown and second side is shown.Herein, which is bonded two flexible printed circuit boards
(flexible printed circuit；FPC)25；Wherein, it is integrated to be connected to one for one of the two flexible printed circuit boards 25
Circuit (IC) chip carries out signal control with the first side display to double face display panel 20；And the two flexible print circuits
The another of plate 25 is connected to another integrated circuit (IC) chip, carries out signal control with second side display to double face display panel 20
System.
Further, in order to which (i.e. first substrate 21 is backwards to the second substrate 22 for two outer surfaces that reduce double face display panel 20
Surface and the second substrate 22 backwards to first substrate 21 surface) to the reflection effect of external ambient light, to improve double-sided display
The display quality of panel 20, the double face display panel 20 of first embodiment according to the present invention further include: be arranged in first substrate
21 towards on the surface of the second substrate 22 and between each display unit 23 the first black matrix" 26 and setting the
The second black matrix" 27 between two substrates 22 and multiple switch element 24 and between each display unit 23.It should illustrate
It is that, as another embodiment of the present invention, the first black matrix" 26 and the second black matrix" 27 can also be not provided with.
Here, it should be noted that in the present invention, multiple display units 23 engaging one another can also be arranged in the first base
Plate 21 is towards on the surface of the second substrate 22.And the joining place of two adjacent display units 23 covers corresponding first black
Matrix 26.
With continued reference to Fig. 1, the first backlight module 10 include: the first light guide plate 11, first choice transmissive element 12 and
First light source 13.
First light guide plate 11 includes: the first light-emitting surface 111 and the first light incident sides positioned at 111 right side of the first light-emitting surface
112；Wherein, the first light-emitting surface 111 is arranged in face of first substrate 21.It should be understood that the first light incident sides 112 may be alternatively located at
The left side of first light-emitting surface 111.
First light source 13 is arranged adjacent to the first light incident sides 112.First choice transmissive element 12 is set to the first light
Between source 13 and the first light incident sides 112.The light that first light source 13 is emitted reaches the by first choice transmissive element 12
One light incident sides 112；Wherein, first choice transmissive element 12 is selected for selectively transmiting P light (i.e. the first polarised light)
Reflect to selecting property the light (generally referring to S light here) in addition to P light.
In the present embodiment, first choice transmissive element 12 may include the first basement membrane, the second basement membrane and polarization unit,
The polarization unit is arranged between the first basement membrane and the second basement membrane and is situated between by the several hundred isotropism with high birefringence characteristic
Matter and anisotropic medium are made, so that the P light component of incident light is transmitted and reflected the S light component of incident light.First
Basement membrane and the second basement membrane are hyaline membranes, they can be by polyester (PET), polymethyl methacrylate (PMMA), polycarbonate
(PC) etc. it is made.As another embodiment of the present invention, first choice transmissive element 12 is also possible to polaroid, make into
The P light component for penetrating light transmits and the S light component of incident light is absorbed or reflected.
With continued reference to Fig. 1, the second backlight module 30 include: the second light guide plate 31, the second selective transmission element 32 and
Second light source 33.
Second light guide plate 31 includes: the second light-emitting surface 311 and the second light incident sides positioned at 311 right side of the second light-emitting surface
312；Wherein, the second light-emitting surface 311 is arranged in face of the second substrate 22.It should be understood that the second light incident sides 312 may be alternatively located at
The left side of second light-emitting surface 311.
First light incident sides 112 and the second light incident sides 312 can be located at the not ipsilateral of respective light-emitting surface.That is,
As the third embodiment of the present invention, referring to Fig. 3, the first light incident sides 112 are located at the right side of the first light-emitting surface 111, and second
Light incident sides 312 are located at the left side of the second light-emitting surface 311.It should be noted that in the present invention, the first light incident sides 112 are also
The left side of the first light-emitting surface 111 can be located at, and the second light incident sides 312 can be located at the right side of the second light-emitting surface 311.
Second light source 33 is arranged adjacent to the second light incident sides 312.Second selective transmission element 32 is set to the second light
Between source 33 and the second light incident sides 312.The light that second light source 33 is emitted reaches the by the second selective transmission element 32
Two light incident sides 312；Wherein, the second selective transmission element 32 be also used for selectively transmiting P light (i.e. the first polarised light) and
Selectively reflect the light (generally referring to S light here) in addition to P light.
In the present embodiment, the constituent and composed structure of the second selective transmission element 32 are saturating with first choice
It is identical to penetrate element 12.As another embodiment of the present invention, the second selective transmission element 32 is also possible to polaroid, makes
The P light component of incident light transmits and the S light component of incident light is absorbed or reflected.
In addition, in the present embodiment, the first backlight module 10 and the second backlight module 30 respectively include a light source；But this
Invention is not restricted to this, for example, it is also possible to be selected simultaneously to first choice transmissive element 12 and second using the same light source
32 emergent light of selecting property transmissive element.
With continued reference to Fig. 1, in order to improve the first polarised light that the first backlight module 10 and the second backlight module 30 provide
Utilization rate, further, in the present embodiment, double-side display device further include: be set on the first backlight module 10
One selective reflecting element 40 and the second selective reflecting element 50 being set under the second backlight module 30.
Here, first choice sexual reflex element 40 and the second selective reflecting element 50 are used to selectively reflected P light
(i.e. the first polarised light) and selectively transmit the light in addition to P light (generally referring to S light here).In the present embodiment,
The constituent of one selective reflecting element 40 and the second selective reflecting element 50 is identical as first choice transmissive element 12.
That is, 12 vertical rotary of first choice transmissive element (is rotated by 90 °), so that it may as first choice sexual reflex element 40
Or second selective reflecting element 50 use.As another embodiment of the present invention, first choice sexual reflex element 40 and/or
Second selective reflecting element 50 is also possible to polaroid, transmits the S light component of incident light and to the P light component of incident light
It is absorbed or is reflected.
When the first backlight module 10 provides the first polarised light (i.e. P light) to double face display panel 20, by the first light guide plate
First polarised light of the 11 surface outgoing opposite with the first light-emitting surface 111 can be reflected back by first choice sexual reflex element 40
In first light guide plate 11, to improve light utilization, and first polarised light is sent out after the liquid crystal layer of double face display panel 20
Phase delay is given birth to, polarization direction changes 90 degree, becomes the second polarised light (i.e. S light), which can pass through second
Selective reflecting element 50 is emitted, so that double face display panel 20 realizes that second side is shown (i.e. downside display), it is two-sided at this time aobvious
Show the white state working method of 20 downside Display Realization of panel.However, when the first polarised light of the first backlight module 10 offer is by double
There is no phase delays after the liquid crystal layer of face display panel 20, and polarization direction is constant, continue as the first polarised light (i.e. P
Light), which cannot be emitted by the second selective reflecting element 50, be shown on the downside of double face display panel 20 at this time
Realize black state working method.
When the second backlight module 30 provides the first polarised light (i.e. P light) to double face display panel 20, by the second light guide plate
First polarised light of the 31 surface outgoing opposite with the second light-emitting surface 311 can be reflected back by the second selective reflecting element 50
In first light guide plate 11, to improve light utilization, and first polarised light is sent out after the liquid crystal layer of double face display panel 20
Phase delay is given birth to, polarization direction changes 90 degree, is transformed into the second polarised light (i.e. S light), which can be by the
The outgoing of one selective reflecting element 40, so that double face display panel 20 realizes that the first side is shown (i.e. upside display), it is two-sided at this time
The white state working method of 20 upside Display Realization of display panel.However, when the first polarised light that the second backlight module 30 provides passes through
There is no phase delays after the liquid crystal layer of double face display panel 20, and polarization direction is constant, continue as the first polarised light (i.e. P
Light), which cannot be emitted by first choice sexual reflex element 40, be shown on the upside of double face display panel 20 at this time
Realize black state working method.
Further, two outer surfaces in double face display panel 20 of external ambient light form strong reflection in order to prevent, from
And the display quality of double face display panel 20 is influenced, the double-side display device of first embodiment according to the present invention further include: set
The first anti-reflection layer 60 for being placed on first choice sexual reflex element 40 and be set to the second selective reflecting element 50 it
Under the second anti-reflection layer 70.It should be noted that being used as another embodiment of the present invention, the first anti-reflection layer 60 and second
Anti-reflection layer 70 can also be not provided with.
Fig. 4 is the structural schematic diagram of the double-side display device of fourth embodiment according to the present invention.
Referring to Fig. 4, unlike first embodiment shown in FIG. 1: double face display panel 20 further include: be set to first
Substrate 21 is towards the clear area 28 on the surface of the second substrate 22 and between the display unit 23.In the present embodiment
In, show two clear areas 28, wherein each clear area 28 can be set arbitrary neighborhood two display units 23 it
Between；But the present invention is not restricted to this, for example, may include more clear areas 28 in the present invention；Wherein, each clear area 28
It can be set between two display units 23 of corresponding arbitrary neighborhood.
In the present embodiment, clear area 28 can be a blank spaces region.It is further possible in the blank spaces
Area filling forms flatness layer (OC layers), or in transparent photoresist of blank spaces area filling etc..Herein, clear area 28 is set
It sets, double face display panel 20 can be made to form preferable transparence display effect, to expand application scenarios.
It should be noted that display with double faces can be improved to two-side transparent display in the above various embodiments；Its
In, clear area can have white color blocking or colourless color blocking etc., can be uniform according to one or more sub-pixel size
It is distributed in double-side display device.Clear area is also possible to any connection being uniformly distributed in double-side display device together
Figure.It is that sub-pixel size is evenly distributed in double-side display device that wherein Fig. 4, which describes clear area,.Transparence is presented in clear area
It can be display pattern according to the display device when state clear area liquid crystal made to be applied mesomorphic state and be also possible to not apply voltage shape
State, as long as penetrating environment light from top and bottom.
Fig. 5 is the structural schematic diagram of the double-side display device of fifth embodiment according to the present invention.
Referring to Fig. 5, the double-side display device of fifth embodiment according to the present invention includes: third backlight module 100, setting
Double face display panel 200 under third backlight module 100, the 4th backlight mould being set under double face display panel 200
Block 300.
In the present embodiment, third backlight module 100 and the 4th backlight module 300 all provide display light and give double-sided display face
Plate 200.In the present embodiment, third backlight module 100 can have structure identical with the first above-mentioned backlight module 10, can also
To be the common backlight module of the prior art；Similarly, the 4th backlight module 300 can have and the second above-mentioned backlight mould
The identical structure of block 30, is also possible to the common backlight module of the prior art.Here, when third backlight module 100 using with
The above-mentioned identical structure of the first backlight module 10, the 4th backlight module 300 is using identical as the second above-mentioned backlight module 30
Structure when, polaroid can be set on the third backlight module 100 and under the 4th backlight module 300 or selectivity is anti-
Penetrate element.When third backlight module 100 and the 4th backlight module 300 are all made of the common backlight module of the prior art,
Between third backlight module 100 and double face display panel 200 and between the 4th backlight module 300 and double face display panel 200
Polaroid or selective reflecting element are set.
The double face display panel 200 of fifth embodiment according to the present invention include: third substrate 201, tetrabasal 202,
Multiple first display unit 203a, multiple second display unit 203b, multiple first switching element 204a and multiple second are opened
Close element 204b.Here, third substrate 201 can be array substrate, and tetrabasal 202 can be COA (CF On Array) base
Plate；Or third substrate 201 can be COA (CF On Array) substrate, tetrabasal 202 can be array substrate；Or the
Three substrates 201 and tetrabasal 202 can all be COA (CF On Array) substrate.
Specifically, third substrate 201 is set between third backlight module 100 and the 4th backlight module 300, the 4th base
Plate 202 is set between third substrate 201 and the 4th backlight module 300.
Multiple first switching element 204a be spaced each other be arranged in third substrate 201 towards the surface of tetrabasal 202 it
On.In the present embodiment, first switching element 204a can be for example thin film transistor (TFT) TFT, but the present invention is not restricted to this.
Multiple first display unit 203a, which are spaced each other, to be arranged on multiple first switching element 204a, and each
One display unit 203a corresponds to the interval between two adjacent first switching element 204a.Herein, a first switch member
One the first display unit 203a of the corresponding control of part 204a is shown.In this embodiment, it is preferred that each first display is single
First 203a is red display unit or green display unit or blue display unit；But the present invention is not restricted to this, example
Such as, each first display unit 203a may include two identical or different color display units or more it is identical or
Different color display units.Here, the color display unit can be red display unit or green display unit or
Person's blue display unit.
Multiple second switch element 204b be spaced each other be arranged in tetrabasal 202 towards the surface of third substrate 201 it
On, and each second switch element 204b corresponds to the interval between two adjacent the first display unit 203a.In this reality
It applies in example, second switch element 204b can be for example thin film transistor (TFT) TFT, but the present invention is not restricted to this.
Multiple second display unit 203b, which are spaced each other, to be arranged on multiple second switch element 204b, and each
Two display unit 203b correspond to the interval between two adjacent second switch element 204b.Herein, a second switch member
One the second display unit 203b of the corresponding control of part 204b is shown.In this embodiment, it is preferred that each second display is single
First 203b is red display unit or green display unit or blue display unit；But the present invention is not restricted to this, example
Such as, each first display unit 203a may include two identical or different color display units or more it is identical or
Different color display units.Here, the color display unit can be red display unit or green display unit or
Person's blue display unit.
In addition, the two opposite sides of third substrate 201 and tetrabasal 202 each extend over, to be respectively formed corresponding first side
Display (i.e. in Fig. 5, the upside of double face display panel 200 is shown) and second side show (i.e. in Fig. 5, double face display panel 200
Downside is shown) the area binding (Bonding).Herein, the two binding areas are bonded a flexible printed circuit board respectively
(Flexible Printed Circuit；FPC)205；Wherein, one of the two flexible printed circuit boards 205 are connected to a collection
At circuit (IC) chip, signal control is carried out with the first side display to double face display panel 200；And the two flexible printings are electric
The another of road plate 205 is connected to another integrated circuit (IC) chip, is shown with second side to double face display panel 200 and carries out letter
Number control.
As another embodiment of the present invention, phase the same side of third substrate 201 and tetrabasal 202 each extend over
It is respectively formed area binding (Bonding) that corresponding first side is shown and second side is shown.
In the present embodiment, since double face display panel 200 uses bilateral transmissive display, in order to avoid bilateral is aobvious
Show interfering with each other for picture, the bilateral of double face display panel 200 does not show identical or different picture simultaneously.In this way, third
Backlight module 100 and the 4th backlight module 300 must not provide display light to double face display panel 200 simultaneously.Certainly, in this hair
In bright, double face display panel 200 can also be used, and bilateral shows identical picture simultaneously.
In the present embodiment, double face display panel 200 carries out second side by the display light that third backlight module 100 provides
Display (i.e. downside display), and double face display panel 200 carries out the first side by the display light that the 4th backlight module 300 provides
Display (i.e. upside display).That is, when double face display panel 200 carry out the first side display when, the 4th backlight module 300 to
Double face display panel 200 provides display light；And when double face display panel 200 carries out second side display, third backlight module 100
Display light is provided to double face display panel 200.
Further, in order to which (i.e. third substrate 201 is backwards to tetrabasal for two outer surfaces that reduce double face display panel 200
202 surface and tetrabasal 202 are backwards to the surface of third substrate 201) to the reflection effect of external ambient light, it is two-sided to improve
The display quality of display panel 200, the double face display panel 200 of fifth embodiment according to the present invention further include: setting is the
Third black matrix" 206 between three substrates 201 and multiple first switching element 204a, wherein third black matrix" 206 and
One switch element 204a is corresponded；And it is arranged in the between tetrabasal 202 and multiple second switch element 204b the 4th
Black matrix" 207, wherein the 4th black matrix" 207 and second switch element 204b is corresponded.It should be noted that conduct
Another embodiment of the present invention, third black matrix" 206 and the 4th black matrix" 207 can also be not provided with.
In addition, in the present embodiment, the quantity of the second display unit 203b is equal to the quantity of the first display unit 203a, i.e.,
The homalographic that double face display panel 200 carries out upper and lower side is shown.It should be noted that in the present invention, the second display unit
The quantity of 203b can be less than the quantity of the first display unit 203a, and accordingly, the quantity of second switch element 204b can also be lacked
In first switching element 204a；Otherwise it also sets up.It is shown in this way, small area can be carried out in the downside of double face display panel 200.
In conclusion each embodiment according to the present invention, forms double face display panel using two substrates, with the prior art
It compares, production cost can be greatly lowered, and be conducive to develop towards lightening direction.
Although the present invention has shown and described referring to specific embodiment, it should be appreciated by those skilled in the art that:
In the case where not departing from the spirit and scope of the present invention being defined by the claims and their equivalents, can carry out herein form and
Various change in details.
Claims (7)
1. a kind of double-side display device characterized by comprising the first backlight module (10) and the second backlight mould being oppositely arranged
Block (30) and the double face display panel being set between first backlight module (10) and second backlight module (30)
(20)；First backlight module (10) and second backlight module (30) are provided which the first polarised light to the double-sided display
Panel (20)；Wherein, the double face display panel (20) includes:
First substrate (21) is set between first backlight module (10) and second backlight module (30)；
The second substrate (22) is set between the first substrate (21) and second backlight module (30)；And
Multiple display units (23), array arrangement the first substrate (21) towards the surface of the second substrate (22) it
On；
Multiple switch element (24) is spaced each other and is arranged in surface of the second substrate (22) towards the first substrate (21)
On；
Wherein, the switch element (24) corresponds between two adjacent display units (23).
2. double-side display device according to claim 1, which is characterized in that the double-side display device further include:
First choice sexual reflex element (40) is set on first backlight module (10), for selectively reflecting institute
It states the first polarised light and selectively transmits the second polarised light；And
Second selective reflecting element (50) is set under first backlight module (10), for selectively reflecting institute
It states the first polarised light and selectively transmits the second polarised light；
Wherein, the polarization direction of second polarised light is different from the polarization direction of first polarised light.
3. double-side display device according to claim 1, which is characterized in that the double face display panel (20) further include:
Be set to the first substrate (21) towards on the surface of the second substrate (22) and be located at the display unit (23) it
Between clear area (28).
4. double-side display device according to claim 1, which is characterized in that the double face display panel (20) further include:
The first substrate (21) is set to towards on the surface of the second substrate (22) and between each display unit (23)
The first black matrix" (26), and
It is set between the multiple switch element (24) and the second substrate (22) and between each display unit (23)
The second black matrix" (27).
5. double-side display device according to any one of claims 1 to 4, which is characterized in that first backlight module
(10) include:
First light guide plate (11) enters light with the first light-emitting surface (111) and positioned at the first of the first light-emitting surface (111) side
Side (112), first light-emitting surface (11) are arranged towards the first substrate (21)；
First choice transmissive element (12) is arranged, for selectively transmiting institute adjacent to first light incident sides (112)
State the first polarised light.
6. double-side display device according to claim 5, which is characterized in that second backlight module (30) includes:
Second light guide plate (31) enters light with the second light-emitting surface (311) and positioned at the second of the second light-emitting surface (311) side
Side (312), second light-emitting surface (311) are arranged towards the second substrate (22)；
Second selective transmission element (32) is arranged, for selectively transmiting institute adjacent to second light incident sides (312)
State the first polarised light.
7. double-side display device according to claim 2, which is characterized in that the double-side display device further include:
First anti-reflection layer (60) is set on the first choice sexual reflex element (40)；
Second anti-reflection layer (70) is set under the second selective reflecting element (50)；
Wherein, first anti-reflection layer (60) and second anti-reflection layer (70) are used to prevent the strong anti-of external ambient light
It penetrates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511021859.1A CN105629542B (en) | 2015-12-30 | 2015-12-30 | Double-side display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511021859.1A CN105629542B (en) | 2015-12-30 | 2015-12-30 | Double-side display device |
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| CN105629542A CN105629542A (en) | 2016-06-01 |
| CN105629542B true CN105629542B (en) | 2019-02-26 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108121099A (en) * | 2018-02-06 | 2018-06-05 | 深圳英鸿骏智能科技有限公司 | One kind penetrates the two-sided interactive system of display |
| CN113345321A (en) * | 2020-03-02 | 2021-09-03 | 南京瀚宇彩欣科技有限责任公司 | Flexible display |
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| CN1705906A (en) * | 2002-10-17 | 2005-12-07 | 夏普株式会社 | Display device and display device mounting device |
| CN1748175A (en) * | 2003-02-14 | 2006-03-15 | 三菱电机株式会社 | Liquid cristal display device and information device with the display device mounted in it |
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