Utility model content
The purpose of this utility model is to provide a kind of OLED display with backlight regulatory function, and it is in conventional transparent
Electrons spread light modulation sheet is set up at the OLED display screen back side, it is achieved that regulate the function of transparent OLED display screen backlight, at display figure
The resolution of picture and definition require high occasion, can strengthen display comparison by selecting variable uniform astigmatism backlight mode
Degree, is greatly promoted image display effect and display quality, and can realize high light line transmitance effect at all-transparent backlight mode,
Not only ensure display effect but also ensure through effect.
To achieve these goals, this utility model have employed techniques below scheme:
A kind of OLED display with backlight regulatory function, it is characterised in that: it includes transparent OLED display screen, thoroughly
The back side of bright OLED display screen is connected by air barrier or adhesive glue has electrons spread to dim sheet, and electrons spread light modulation sheet is
Smectic liquid crystal electrons spread light modulation sheet or PDLC PDLC light modulation sheet, transparent OLED display screen and OLED display screen
Driving dynamic control device to connect, electrons spread light modulation sheet is connected with light adjusting controller.
Basic unit that described transparent OLED display screen includes being cascading, transparent anode, organic layer, conductive layer, transmitting
Layer, negative electrode, transparent anode and negative electrode drive the corresponding signal port of dynamic control device respectively and are connected with described OLED display screen.
Base layer that described smectic liquid crystal electrons spread light modulation sheet includes being cascading, the first conductive electrode layer,
Smectic liquid crystal mixed layer, the second conductive electrode layer, first, second conductive electrode layer is corresponding to described light adjusting controller respectively
Signal port connects, wherein: the second conductive electrode layer is connected by adhesive glue with the described basic unit of described transparent OLED display screen.
Or, described smectic liquid crystal electrons spread light modulation sheet includes two base layers, is provided with near in the middle of two base layers
Crystalline phase liquid crystal mixed layer, two base layers are respectively equipped with first, second conductive electrode towards the side of smectic liquid crystal mixed layer
Layer, first, second conductive electrode layer is connected, wherein with the corresponding signal port of described light adjusting controller respectively: two base layers
In a base layer connected by adhesive glue with the described basic unit of described transparent OLED display screen, or in two base layers
It is separated between the described basic unit of one base layer and described transparent OLED display screen and forms described air barrier.
Dichroic dye is may further be enriched with in described electrons spread light modulation sheet.
The utility model has the advantages that:
1, this utility model sets up electrons spread light modulation sheet at the conventional transparent OLED display screen back side, it is achieved that regulate transparent
The function of OLED display screen backlight, adds the selection to the multiple backlight mode of all-transparent of the uniform astigmatism.When need not strengthen
Image display effect and when selecting all-transparent backlight mode, electrons spread light modulation sheet is in full impregnated under the control of light adjusting controller
Bright state, light penetration is up to more than 95%, has little to no effect the transparency of original transparent OLED display screen.When aobvious
The resolution of diagram picture and definition require high occasion, need to strengthen image display effect and select uniform astigmatism backlight mode
Time, electrons spread light modulation sheet is in frosted state under the control of light adjusting controller, the mist degree of electrons spread light modulation sheet from 1%~
99% is adjustable and light penetration is positively retained at more than 80%, and now electrons spread light modulation sheet plays the effect of passive backlight,
Light the dissipating through nearly ten thousand layers of multistable state liquid srystal molecular layer that original transparent OLED display screen is sent by electrons spread light modulation sheet
Penetrating and obtain the backlight effect of uniform astigmatism, reach brightness, contrast, being obviously improved of colour gamut, display effect is greatly improved.
2, compared to conventional transparent OLED display screen, the performance parameter of original transparent OLED display screen is elevated, especially
Being that light penetration is therefore greatly increased, display quality has had and has significantly improved, and in other words, have employed electrons spread light modulation sheet and makees
Auxiliary for original transparent OLED display screen strengthens display structure, and original transparent OLED display screen just can go to promote relievedly
Self light penetration, and ensure display effect by the BLC effect of electrons spread light modulation sheet.
3, this utility model is transformed in original transparent OLED display screen and can be realized, and transformation and upgrade technique is simply, just
Victory, low cost, compatible good, strong adaptability.
4, the light modulation of the electrons spread in this utility model sheet only need to be adjusted to all-transparent state, frosted state or a certain semi-transparent
The moment of the progressive state of bright gray scale powers, and regulating time is the shortest, is not required to the most additionally consume electric energy when being maintained under free position, tool
There is the feature of energy-saving and environmental protection.
Detailed description of the invention
As depicted in figs. 1 and 2, this utility model has the OLED display of backlight regulatory function and includes that transparent OLED shows
Screen 10, is provided with electrons spread light modulation at the back side of transparent OLED display screen 10 by air barrier or adhesive glue superposing type
Sheet, electrons spread light modulation sheet is smectic liquid crystal electrons spread light modulation sheet or PDLC PDLC light modulation sheet, transparent
OLED display screen 10 is driven dynamic control device (not shown) and is connected with OLED display screen, electrons spread light modulation sheet and brightness adjustment control
Device (not shown) connects.
In this utility model, basic unit that transparent OLED display screen 10 can include being cascading, transparent anode, organic
Layer, conductive layer, emission layer, negative electrode, transparent anode and negative electrode drive the corresponding signal end of dynamic control device respectively with OLED display screen
Mouth connects, and wherein: basic unit can be selected for transparent plastic, glass, transparent metal paper tinsel etc. and makes, is used for supporting whole transparent OLED and shows
Screen 10, transparent anode, for eliminating electronics when electric current flows through, increases electronics " hole ", and organic layer is by organic molecule or organic
Polymer is constituted, and conductive layer is made up of organic plastic molecules, the electronics " hole " come from transparent anode for transmission, can use
Polyaniline is made up of the organic plastic molecules being different from conductive layer as conducting polymer, emission layer, and transmission comes from negative electrode
Electronics, carries out luminescence process, and polyfluorene can be used as emitted polymer, and negative electrode can be transparent or opaque, depending on OLED
Depending on type, when there being current flowing, negative electrode can be by electronics injection circuit.
In this utility model, transparent OLED display screen 10 is product known in the art, therefore it is specifically constituted and work
Principle repeats no more.
In this utility model, such as Fig. 1, smectic liquid crystal electrons spread light modulation sheet can include the matrix being cascading
Layer the 50, first conductive electrode layer 40, smectic liquid crystal mixed layer the 30, second conductive electrode layer 20, first, second conductive electrode layer
40,20 are connected, wherein with the corresponding signal port of light adjusting controller respectively: the second conductive electrode layer 20 and transparent OLED display screen
The basic unit of 10 is connected by adhesive glue, and the i.e. second conductive electrode layer 20 has been arranged on the basic unit back side of transparent OLED display screen 10,
This kind of structure is the situation that smectic liquid crystal electrons spread light modulation sheet and transparent OLED display screen 10 share basic unit.
Such as Fig. 2, smectic liquid crystal electrons spread light modulation sheet can include two base layers 50,70, in two base layers 50,70
Between be provided with smectic liquid crystal mixed layer 30, two base layers 50,70 are respectively equipped with towards the side of smectic liquid crystal mixed layer 30
First, second conductive electrode layer 40,20, first, second conductive electrode layer 40,20 respectively with the corresponding signal end of light adjusting controller
Mouth connects, wherein: a base layer in two base layers 50,70 passes through adhesive glue phase with the basic unit of transparent OLED display screen 10
Connect, or the spacing that is separated between a base layer and the basic unit of transparent OLED display screen 10 in two base layers 50,70
From and form air barrier 60.
In smectic liquid crystal electrons spread light modulation sheet, smectic liquid crystal mixed layer 30 can be by smectic liquid crystal and additive
Mixing, smectic liquid crystal can be A class smectic liquid crystal organic compound, and additive can be the compound of band conductive characteristic,
The composition of smectic liquid crystal mixed layer 30 also can have other form, it is not limited to above-mentioned.Base layer 50,70 can be by clear glass
Or organic transparent material is made, thickness range is that clear glass can be simple glass, automobile more than 0 and less than or equal to 5cm
Glass, external window of building glass, safety glass or special glass etc., organic transparent material can be PET, PMMA, acrylic resin, thoroughly
The organic resin transparent materials such as bright silica gel.First, second conductive electrode layer 40,20 can be made up of transparent ITO (tin indium oxide),
Also the polymer molecule material etc. that can be adulterated by CNT, Graphene, nano silver wire possesses organic material of electrically conducting transparent performance
Material, inorganic material or composite are made, or any of the above-described or appoint different materials adds the metals such as cupric, silver, gold, carbon
Or non-metallic conducting material makes.
About concrete structure and the operation principle of smectic liquid crystal electrons spread light modulation sheet, refer to Chinese invention patent
Patent documentations such as " a kind of electric-controlled light-regulating medium " (patent No.s 200710175959.9) understands, is not set forth in detail at this.
In this utility model, PDLC PDLC light modulation sheet is product known in the art, therefore its concrete structure
Become and operation principle repeats no more.PDLC PDLC light modulation sheet also can dim sheet one with smectic liquid crystal electrons spread
Sample has two kinds of structures, a kind of for having two base layers, being shown with transparent OLED by the form of adhesive glue or air barrier
The basic unit of display screen 10 connects, and another kind of shares the form of basic unit for only having a base layer with transparent OLED display screen 10.
In actual design, may further be enriched with dichroic dye in electrons spread light modulation sheet to realize multicolor backlight regulation mould
Formula.
In this utility model, OLED display screen drives dynamic control device, light adjusting controller is technology known in the art, its
Can include signal receiving processing circuit, voltage processing circuitry, voltage regulator circuit, drive circuit, it is specifically constituted the most here
Describe in detail.In actual applications, it can be individual devices that OLED display screen drives dynamic control device with light adjusting controller, therebetween by wired
Or also can be connected with master control device, it addition, OLED display screen drives dynamic control device and light adjusting controller after wireless mode connection
May alternatively be integrated within together.
As a example by smectic liquid crystal electrons spread light modulation sheet, work process of the present utility model and principle are described below,
PDLC PDLC light modulation sheet refers to smectic liquid crystal electrons spread light modulation sheet and understands.
During use, transparent OLED display screen 10 realizes the image of self under OLED display screen drives the control of dynamic control device
Display.
When residing occasion need not carry out transparent OLED display screen 10 image display effect enhancing, pass through brightness adjustment control
Device controls smectic liquid crystal electrons spread light modulation sheet and is in all-transparent backlight mode.Specifically, by light adjusting controller to closely
Apply rational high frequency voltage on first, second conductive electrode layer 40,20 of crystalline phase liquid crystal electron diffusion light modulation sheet, make smectic phase
Smectic liquid crystal molecule in liquid crystal mixed layer 30 in the way of its long optical axis is perpendicular to conductive electrode layer plane in conformation of rules
Arrangement, now smectic liquid crystal electrons spread light modulation sheet is in all-transparent state, and light penetration can reach more than 95%, enters near
The exit direction of the light of crystalline phase liquid crystal electron diffusion light modulation sheet does not occurs substantially to change, so that from transparent OLED display screen 10
The light gone out directly reflects via smectic liquid crystal electrons spread light modulation sheet, and light does not scatters, to transparent
The transparency of OLED display screen 10 self has little to no effect.
When the resolution and definition being in display image requires the highest occasion, need transparent OLED display screen 10
When carrying out image display effect enhancing, control smectic liquid crystal electrons spread light modulation sheet by light adjusting controller and be in uniform astigmatism
Backlight mode.Specifically, by light adjusting controller to first, second conductive electrode of smectic liquid crystal electrons spread light modulation sheet
Applying rational low-frequency voltage on layer 40,20, making the smectic liquid crystal molecule in smectic liquid crystal mixed layer 30 is out of order form
Arrangement, now smectic liquid crystal electrons spread light modulation sheet is in frosted state, and mist degree scope is adjustable 1% to 99%, and light is saturating
The rate of mistake is positively retained at more than 80%, and the exit direction of the light entering smectic liquid crystal electrons spread light modulation sheet scatters, from
The light that transparent OLED display screen 10 sends penetrates to all directions scattering via smectic liquid crystal electrons spread light modulation sheet, thus
Expand beam projecting angle, substantially can realize an ultra-uniform light-dispersing effect, therefore transparent OLED display screen 10 be served
The effect of passive backlight, say, that the light that transparent OLED display screen 10 is sent by smectic liquid crystal electrons spread light modulation sheet
Line obtains uniform astigmatism, the backlight that can develop after the scattering refraction action of nearly ten thousand layers of multistable smectic liquid crystal molecular layer
Effect, so that transparent OLED display screen 10 reaches brightness, contrast, being obviously improved of colour gamut, display effect is greatly improved.
Further, in actual use, the smectic liquid crystal electrons spread light modulation uniform astigmatism backlight mode residing for sheet also may be used
Regulate according to the actual requirements.Specifically, by controlling two conductive electrodes to smectic liquid crystal electrons spread light modulation sheet
Voltage swing, frequency or the action time applied on layer 20,40, make smectic liquid crystal molecule between regular with out of order form it
Between a certain form under arrange, i.e. smectic liquid crystal molecular moiety distortion, smectic liquid crystal electrons spread light modulation sheet be between
The progressive state of the translucent gray scale of a certain kind between all-transparent state and frosted state, with the light sending transparent OLED display screen 10
The light direction that realized via smectic liquid crystal electrons spread light modulation sheet, go out light power and be controlled, reach mist degree (scattering
Degree), the regulation of light penetration.
After smectic liquid crystal electrons spread light modulation sheet reaches required backlight mode, light adjusting controller just can stop smectic
Phase liquid crystal electron diffusion light modulation sheet is controlled, and i.e. removes the voltage being applied on smectic liquid crystal electrons spread light modulation sheet.When
After removing voltage, smectic liquid crystal electrons spread light modulation sheet still can keep the backlight mode produced during on-load voltage, the most just
Being to say, the holding of any backlight mode need not voltage and maintains, this is because smectic liquid crystal electrons spread light modulation sheet
There is the characteristic of " multistable ".
The utility model has the advantages that:
1, this utility model sets up electrons spread light modulation sheet at the conventional transparent OLED display screen back side, it is achieved that regulate transparent
The function of OLED display screen backlight, adds the selection to the multiple backlight mode of all-transparent of the uniform astigmatism.When need not strengthen
Image display effect and when selecting all-transparent backlight mode, electrons spread light modulation sheet is in full impregnated under the control of light adjusting controller
Bright state, light penetration is up to more than 95%, has little to no effect the transparency of original transparent OLED display screen.When aobvious
The resolution of diagram picture and definition require high occasion, need to strengthen image display effect and select uniform astigmatism backlight mode
Time, electrons spread light modulation sheet is in frosted state under the control of light adjusting controller, the mist degree of electrons spread light modulation sheet from 1%~
99% is adjustable and light penetration is positively retained at more than 80%, and now electrons spread light modulation sheet plays the effect of passive backlight,
Light the dissipating through nearly ten thousand layers of multistable state liquid srystal molecular layer that original transparent OLED display screen is sent by electrons spread light modulation sheet
Penetrating and obtain the backlight effect of uniform astigmatism, reach brightness, contrast, being obviously improved of colour gamut, display effect is greatly improved.
2, compared to conventional transparent OLED display screen, the performance parameter of original transparent OLED display screen is elevated, especially
Being that light penetration is therefore greatly increased, display quality has had and has significantly improved, and in other words, have employed electrons spread light modulation sheet and makees
Auxiliary for original transparent OLED display screen strengthens display structure, and original transparent OLED display screen just can go to promote relievedly
Self light penetration, and ensure display effect by the BLC effect of electrons spread light modulation sheet.
3, this utility model is transformed in original transparent OLED display screen and can be realized, and transformation and upgrade technique is simply, just
Victory, low cost, compatible good, strong adaptability.
4, the light modulation of the electrons spread in this utility model sheet only need to be adjusted to all-transparent state, frosted state or a certain semi-transparent
The moment of the progressive state of bright gray scale powers, and regulating time is the shortest, is not required to the most additionally consume electric energy when being maintained under free position, tool
There is the feature of energy-saving and environmental protection.
The above is preferred embodiment of the present utility model and the know-why used thereof, for the technology of this area
For personnel, in the case of without departing substantially from spirit and scope of the present utility model, any based on technical solutions of the utility model base
Equivalent transformation on plinth, simple replacement etc. obviously change, within belonging to this utility model protection domain.