CN108305951A - Organic light emitting diode device and its driving method, display panel, display device - Google Patents
Organic light emitting diode device and its driving method, display panel, display device Download PDFInfo
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- CN108305951A CN108305951A CN201810003063.0A CN201810003063A CN108305951A CN 108305951 A CN108305951 A CN 108305951A CN 201810003063 A CN201810003063 A CN 201810003063A CN 108305951 A CN108305951 A CN 108305951A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/852—Arrangements for extracting light from the devices comprising a resonant cavity structure, e.g. Bragg reflector pair
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
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Abstract
This application discloses organic light emitting diode device and its driving method, display panel, display devices, with so that single white organic LED device can be emitted the light of different colours as needed, to avoid using colored filter, and then improve the light extraction efficiency of display product, and the pixel density for showing product is improved, it is promoted and shows product display effect.A kind of organic light emitting diode device provided by the embodiments of the present application, including：Cathode and anode, and the organic luminous layer between the cathode and the anode, wherein the anode includes reflecting layer, and the cathode includes transmission layer；Liquid crystal cell, the liquid crystal cell is between the reflecting layer and the transmission layer, and the liquid crystal cell includes first electrode and second electrode, and voltage of the liquid crystal in the liquid crystal cell between the first electrode and second electrode under the action of deflects.
Description
Technical field
This application involves display technology field more particularly to a kind of organic light emitting diode device and its driving method, show
Show panel, display device.
Background technology
Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) due to self-luminous, efficiently
Rate, low-work voltage, it is frivolous, can flexibility the advantages that, display etc. fields be widely used.Realize that OLED is full-color in the prior art
It has been shown that, usually a pixel include the sub-pixel of red (R), green (G), blue (B) three kinds of colors, the setting of RGB sub-pixels
Mode mainly has the following two kinds：(1), the material of the corresponding OLED luminescent layers of R, G, B sub-pixel be respectively red emitting material, it is green
Light luminescent material, blue light emitting material；But such set-up mode needs to cover using more when preparing OLED luminescent layers
Diaphragm plate, the luminous yields of OLED are easy to be affected, and are unfavorable for realizing that high pixel density (PPI) is shown；(2) each sub-pixel corresponds to
The luminescent layer of OLED be white light emitting material, using red, green, blue colored filter to R, G, B subpixel area
It is divided；Such mode, due to needing to be divided to R, G, B subpixel area using colored filter, R, G, B sub-pixel
The photochromic of region is easy to form crosstalk in colored filter, influences the excitation purity of single subpixel area.To sum up, the prior art
In, white light OLED display device will realize full-color display, also need to depend on colored filter, and the use of colored filter can make
At the decline of light extraction efficiency the cost of manufacture of OLED device is increased to reduce the efficiency of OLED device.
Invention content
The embodiment of the present application provides a kind of organic light emitting diode device and its driving method, display panel, display dress
It sets, with so that single white organic LED device can be emitted the light of different colours as needed, to avoid adopting
With colored filter, and then the light extraction efficiency of display product is improved, and improve the pixel density for showing product, promotes display production
Product display effect.
A kind of organic light emitting diode device provided by the embodiments of the present application, including：
Cathode and anode, and the organic luminous layer between the cathode and the anode, wherein the anode packet
Reflecting layer is included, the cathode includes transmission layer；
Liquid crystal cell, the liquid crystal cell is between the reflecting layer and the transmission layer, and the liquid crystal cell includes first
Electrode and second electrode, the effect of voltage of the liquid crystal between the first electrode and the second electrode in the liquid crystal cell
Under deflect.
A kind of driving method of above-mentioned organic light emitting diodde desplay device provided by the embodiments of the present application, this method packet
It includes：
Determine the organic light emitting diode device it is current desired go out light color；
According to the organic light emitting diode device it is current desired go out light color, the preset Organic Light Emitting Diode device
Part go out light color and the liquid crystal cell refractive index correspondence and the preset liquid crystal cell refractive index with control the liquid
The relationship of the voltage signal of brilliant box provides voltage signal for the first electrode and the second electrode of the liquid crystal cell, makes
Liquid crystal deflection in the liquid crystal cell, the liquid crystal cell has and the current desired light extraction face of the organic light emitting diode device
The corresponding refractive index of color.
The embodiment of the present application also provides a kind of display panels, including above-mentioned organic light emission two provided by the embodiments of the present application
Pole pipe device.
The embodiment of the present application also provides a kind of display devices, including above-mentioned display panel provided by the embodiments of the present application.
Organic light emitting diode device and its driving method provided by the embodiments of the present application, display panel, display device, instead
Penetrate layer, transmission layer and its between structure constitute optical microcavity, organic light emitting diode device is between reflecting layer and transmission layer
It is provided with liquid crystal cell, is deflected under the action of the voltage of the liquid crystal in liquid crystal cell between the first electrode and the second electrode, by
It is different with the refractive index of short-axis direction in long axis direction in liquid crystal, when changing to the voltage that liquid crystal cell applies, liquid crystal cell
Refractive index can also change therewith, and the effective light path of the optical microcavity of OLED device changes, to going out for OLED device
Light color changes.For white light OLED device, with the variation of refractive index, three kinds of feux rouges, green light in white light, blue light groups
Point can detach, therefore, by adjusting white light OLED device refractive index can so that white light OLED device is emitted colored light,
Such as feux rouges, green light or blue light can be emitted, i.e., single white light OLED device can be emitted the light of different colours as needed.
In this way, without distinguishing R, G, B sub-pixel by the way that the luminescent material of different colours is arranged, without being set using multiple mask plates
Organic luminous layer is set, so as to avoid influencing the yield of OLED device, and then the PPI of display product can be improved；Without
The colored filter of different colours is set to distinguish the RGB sub-pixels that white light OLED shows product, so as to avoid using coloured silk
Reduction, light-color-cross-talk and the colour cell of light extraction efficiency caused by colo(u)r filter block, and then improves display product and go out light efficiency
Rate promotes the display effect for showing product, the PPI for improving display product, can also reduce the cost of manufacture of display product.
Description of the drawings
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present application, for this
For the those of ordinary skill in field, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of organic light emitting diode device structural schematic diagram provided by the embodiments of the present application；
Fig. 2 is another organic light emitting diode device structural schematic diagram provided by the embodiments of the present application；
Fig. 3 is another organic light emitting diode device structural schematic diagram provided by the embodiments of the present application；
Fig. 4 is another organic light emitting diode device structural schematic diagram provided by the embodiments of the present application；
Fig. 5 is another organic light emitting diode device structural schematic diagram provided by the embodiments of the present application；
Fig. 6 is another organic light emitting diode device structural schematic diagram provided by the embodiments of the present application；
Fig. 7 is another organic light emitting diode device structural schematic diagram provided by the embodiments of the present application；
Fig. 8 is another organic light emitting diode device structural schematic diagram provided by the embodiments of the present application；
Fig. 9 is a kind of driving method flow signal of organic light emitting diodde desplay device provided by the embodiments of the present application
Figure；
Figure 10 is a kind of display panel structure schematic diagram provided by the embodiments of the present application.
Specific implementation mode
The embodiment of the present application provides a kind of organic light emitting diode device and its driving method, display panel, display dress
It sets, with so that single white organic LED device can be emitted the light of different colours as needed, to avoid adopting
With colored filter, and then the light extraction efficiency of display panel is improved, and improve the pixel density for showing product, promotes display production
Product display effect.
The embodiment of the present application provides a kind of organic light emitting diode device, including：
Cathode and anode, and the organic luminous layer between the cathode and the anode, wherein the anode packet
Reflecting layer is included, the cathode includes transmission layer；
Liquid crystal cell, the liquid crystal cell is between the reflecting layer and the transmission layer, and the liquid crystal cell includes first
Electrode and second electrode, the effect of voltage of the liquid crystal between the first electrode and the second electrode in the liquid crystal cell
Under deflect.
It should be noted that organic light emitting diode device provided by the embodiments of the present application, reflecting layer and transmission layer and its
Between structure form optical resonator, the effective light path of optical microcavity be equal to optical microcavity medium refraction index and light in medium
In propagation distance product, also, optical resonator meets standing-wave condition, optical length (the i.e. optical microcavity of optical microcavity
Effective light path) be equal to half wavelength integral multiple, to, in the case where the geometrical length of optical microcavity is constant, refractive index
Change can lead to the change for going out optical wavelength of optical microcavity.
Organic light emitting diode device provided by the embodiments of the present application, organic light emitting diode device is in reflecting layer and transmission
It is provided with liquid crystal cell between layer, is occurred under the action of the voltage of the liquid crystal in liquid crystal cell between the first electrode and the second electrode inclined
Turn, since liquid crystal is different with the refractive index of short-axis direction in long axis direction, when changing to the voltage that liquid crystal cell applies, liquid crystal
The refractive index of box can also change therewith, and the effective light path of the optical microcavity of OLED device changes, to OLED device
The light color that goes out change.Especially for white light OLED device, with the variation of refractive index, feux rouges, green light in white light,
Three kinds of components of blue light can detach, therefore, can be so that white light OLED device goes out by adjusting the refractive index of white light OLED device
Colored light is penetrated, such as feux rouges, green light or blue light can be emitted, i.e., single white light OLED device can be as needed emitted not
With the light of color.In this way, it is not necessary that the luminescent material of different colours is arranged to distinguish R, G, B sub-pixel, without using multiple
Organic luminous layer is arranged in mask plate, so as to avoid influencing the yield of OLED device, and then can improve display product
PPI；The RGB sub-pixels that white light OLED shows product are distinguished without the colored filter of setting different colours, so as to
It avoids blocking using the reduction of light extraction efficiency caused by colored filter, light-color-cross-talk and colour cell, and then improves display production
The light extraction efficiency of product promotes the display effect for showing product, the PPI for improving display product, can also reduce the system of display product
Make cost.
Optionally, the liquid crystal cell further includes being located at the liquid crystal with the first electrode or positioned at the liquid crystal and institute
State the oriented layer between second electrode.So that the liquid crystal in liquid crystal cell is arranged according to specific direction.
Optionally, the organic luminous layer ejecting white light of organic light emitting diode device provided by the embodiments of the present application.
In this way, single white light OLED device can be emitted the light of different colours as needed, without by the way that different face are arranged
The luminescent material of color distinguishes R, G, B sub-pixel, without organic luminous layer is arranged using multiple mask plates, so as to keeping away
The yield for exempting from influence OLED device can improve the PPI of display product；Display product is not necessarily to that the colorized optical filtering of different colours is arranged
Piece distinguishes RGB sub-pixels, can be to avoid using reduction, light-color-cross-talk and the colour cell of light extraction efficiency caused by colored filter
It blocks, and then improves the light extraction efficiency of display product, promotes the display effect for showing product, the PPI for improving display product.
Optionally, the anode further includes the transparency conducting layer between the organic luminous layer and the reflecting layer,
The liquid crystal cell is between the transparency conducting layer and the reflecting layer.I.e. liquid crystal cell is set to the anode of OLED device.Such as
Shown in Fig. 1, organic light emitting diode device provided by the embodiments of the present application includes：Anode 1, anode 1 include total reflection layer 2, thoroughly
Bright conductive layer 3, organic light emitting diode device further include liquid crystal cell 4 between total reflection layer 2 and transparency conducting layer 3, have
Machine luminescent layer 5, cathode 6, wherein liquid crystal cell 4 includes first electrode 7, oriented layer 8, liquid crystal layer 9, second electrode 10.
It should be noted that organic light emitting diode device provided by the embodiments of the present application, needs to apply cathode and anode
Making alive, to drive organic luminous layer to shine, it is also necessary to which first electrode and second electrode to liquid crystal cell apply voltage, when need
Change when going out light color of organic light emitting diode device, changes the voltage applied to liquid crystal cell, so that in liquid crystal cell
Liquid crystal deflect.Organic light emitting diode device as shown in Figure 1, the first electrode and second electrode of liquid crystal cell respectively with
The reflecting layer of anode and transparency conducting layer contact, when organic light emitting diode device works, voltage is provided for transparency conducting layer
Signal, second electrode also obtain voltage signal, and voltage signal is provided for second electrode without lead is arranged again, are reflecting layer
It provides voltage signal just to no longer need to provide voltage signal for first electrode, so as to reduce the voltage control of Organic Light Emitting Diode
The design difficulty of circuit processed simplifies the structure of voltage control circuit, and then when display product includes provided by the embodiments of the present application
Organic light emitting diode device can simplify the structure of display product.
Organic light emitting diode device as shown in Figure 1 provided by the embodiments of the present application, the first electrode of liquid crystal cell and
Two electrodes can be transparent electrode, such as can be tin indium oxide (ITO), and the transmission layer of OLED device for example can be translucent
Layer.
Optionally, in the case where liquid crystal cell is set to the anode of OLED device, the first electrode of the liquid crystal cell
For the reflecting layer, i.e. the first electrode of liquid crystal cell is multiplexed the reflecting layer of anode, so as to realize single white light OLED device
In the case that part is emitted the light of different colours as needed, simplify the structure of OLED device.As shown in Fig. 2, the embodiment of the present application
The organic light emitting diode device of offer include total reflection layer 2, oriented layer 8, liquid crystal layer 9, second electrode 10, transparency conducting layer 3,
Organic luminous layer 5, cathode 6.
Optionally, in the case where liquid crystal cell is set to the anode of OLED device, the second electrode of the liquid crystal cell
For the transparency conducting layer, i.e. the second electrode of liquid crystal cell is multiplexed transparency conducting layer.As shown in figure 3, the embodiment of the present application provides
Organic light emitting diode device include total reflection layer 2, it is oriented layer 8, liquid crystal layer 9, transparency conducting layer 3, organic luminous layer 5, cloudy
Pole 6.The first electrode of organic light emitting diode device as shown in Figure 3 provided by the embodiments of the present application, liquid crystal cell is multiplexed anode
Reflecting layer, the second electrode of liquid crystal cell is multiplexed transparency conducting layer, so as to be further simplified the structure of OLED.
Optionally, the second electrode of the liquid crystal cell is between the transparency conducting layer and the reflecting layer, and
The first insulating layer is provided between the second electrode and the transparency conducting layer.As shown in figure 4, the first electrode of liquid crystal cell is multiple
With the reflecting layer of anode, organic light emitting diode device provided by the embodiments of the present application includes：Total reflection layer 2, oriented layer 8, liquid
Crystal layer 9, second electrode 10, the first insulating layer 11, transparency conducting layer 3, organic luminous layer 5, cathode 6.The embodiment of the present application provides
Organic light emitting diode device as shown in Figure 4, be provided between the second electrode of liquid crystal cell and the transparent electrode layer of anode
Insulating layer, so as to be respectively that second electrode and transparent electrode layer provide voltage, the i.e. voltage control circuit of liquid crystal cell and drive
The luminous voltage control circuit of dynamic luminescent layer is provided separately, and it is organic hair to apply voltage not interfering with transparent electrode layer to liquid crystal cell
Photosphere provides hole, to will not transparent electrode layer and cathode driving luminescent layer be shone and be impacted.
Optionally, when organic light emitting diode device work, the is received in the first electrode of the liquid crystal cell
One voltage signal, the first voltage signal are a fixed voltage, and the second electricity is received in the second electrode of the liquid crystal cell
Signal, the deflection amplitude of the liquid crystal in the liquid crystal cell is pressed to change with the variation of the second voltage signal.First voltage
Signal is fixed voltage, and second voltage signal is variable voltage, i.e., to the voltage of liquid crystal cell application with second voltage signal
Change and change, the deflection amplitude of the liquid crystal in liquid crystal cell changes, the refractive index of liquid crystal with the variation of second voltage signal
Change with the variation of the second voltage signal, the effective light path of the optical microcavity of OLED device is with second voltage signal
Variation and change so that the light color that goes out of OLED device changes with the variation of the second voltage signal, for
White light OLED device, i.e. white light OLED device can be emitted the light of different colours with the variation of second voltage signal, to
Second voltage signal can be adjusted as needed so that single white light OLED device can be emitted different colours as needed
Light.
Fig. 1~Fig. 4 is by taking liquid crystal cell is arranged in anode as an example to organic light emitting diode device provided by the embodiments of the present application
It illustrates, certainly, the other positions in organic light emitting diode device can also be arranged in liquid crystal cell.
Optionally, the transmission layer of the cathode includes the first transmission layer and the second transmission layer, second transmission layer
Positioned at the side of first transmission layer far from the anode, the liquid crystal cell is located at first transmission layer and described second thoroughly
It penetrates between layer, i.e., liquid crystal cell is arranged in cathode.As shown in figure 5, organic light emitting diode device packet provided by the embodiments of the present application
It includes：Anode 1, organic luminous layer 5, cathode 6, wherein anode 1 includes reflecting layer 2 and transparency conducting layer 3, and cathode 6 includes first saturating
Layer 12 and the second transmission layer 13 are penetrated, organic light emitting diode device further includes being located at the first transmission layer 12 and the second transmission layer 13
Liquid crystal cell 4, liquid crystal cell 4 include first electrode 7, oriented layer 8, liquid crystal layer 9, second electrode 10.
Organic light emitting diode device as shown in Figure 5, the first electrode and second electrode of liquid crystal cell respectively with cathode
First transmission layer and the contact of the second transmission layer, when Organic Light Emitting Diode works, voltage signal is provided for the first transmission layer, the
One electrode also obtains voltage signal, and voltage signal is provided for first electrode without lead is arranged again, is carried for the second transmission layer
Voltage supplied signal just no longer needs to provide voltage signal for second electrode, so as to reduce the voltage control of Organic Light Emitting Diode
The design difficulty of circuit simplifies the structure of voltage control circuit, and then when display product includes provided by the embodiments of the present application having
Machine LED device can simplify the structure of display product.
Optionally, the second electrode of the liquid crystal cell is second transmission layer.That is the second electrode of liquid crystal cell is multiple
With the second transmission layer of cathode, so as in the case where realizing that single OLED device is emitted the light of different colours, simplify
The structure of OLED device.As shown in fig. 6, organic light emitting diode device provided by the embodiments of the present application includes：Reflecting layer 2, thoroughly
Bright conductive layer 3, organic luminous layer 5, the first transmission layer 12, first electrode 7, oriented layer 8, liquid crystal layer 9, the second transmission layer 13.
Optionally, the first electrode of the liquid crystal cell is first transmission layer.That is the first electrode of liquid crystal cell is multiple
With the first transmission layer of cathode.As shown in fig. 7, organic light emitting diode device provided by the embodiments of the present application includes：Reflecting layer
2, transparency conducting layer 3, organic luminous layer 5, the first transmission layer 12, oriented layer 8, liquid crystal layer 9, the second transmission layer 13.The application is real
The organic light emitting diode device as shown in Figure 7 of example offer is provided, the first electrode of liquid crystal cell is multiplexed the first transmission layer of cathode,
Second electrode is multiplexed the second transmission layer of cathode, so as to be further simplified the structure of organic light emitting diode device.
Optionally, the first electrode of the liquid crystal cell be located at first transmission layer and second transmission layer it
Between, and it is provided with second insulating layer between the first electrode and first transmission layer.As shown in figure 8, the embodiment of the present application
The organic light emitting diode device of offer includes：Reflecting layer 2, transparency conducting layer 3, organic luminous layer 5, the first transmission layer 12,
Two insulating layers 13, first electrode 7, oriented layer 8, liquid crystal layer 9, the second transmission layer 13.Organic light emission provided by the embodiments of the present application
Diode component, due to being provided with second insulating layer between the first electrode of liquid crystal cell and the first transmission layer of cathode, to
Can be respectively that the first electrode of liquid crystal cell and the first transmission layer of cathode provide voltage signal, i.e. the voltage of liquid crystal cell controls electricity
The voltage control circuit that road and driving luminescent layer shine is provided separately, and will not be transmitted to first in this way, applying voltage to liquid crystal cell
Layer provides electronics for organic luminous layer and impacts, and the transparent electrode layer driving to not interfere with the first transmission layer and anode has
Machine luminescent layer shines.
Optionally, when organic light emitting diode device work, the is received in the first electrode of the liquid crystal cell
Three voltage signals, the tertiary voltage signal are a fixed voltage, and the 4th electricity is received in the second electrode of the liquid crystal cell
Signal, the deflection amplitude of the liquid crystal in the liquid crystal cell is pressed to change with the variation of the 4th voltage signal.Tertiary voltage
Signal is fixed voltage, and the 4th voltage signal is variable voltage, i.e., to the voltage of liquid crystal cell application with the 4th voltage signal
Change and change, the deflection amplitude of the liquid crystal in liquid crystal cell changes, the refractive index of liquid crystal with the variation of the 4th voltage signal
Change with the variation of the 4th voltage signal, the effective light path of the optical microcavity of OLED device is with the 4th voltage signal
Variation and change so that the light color that goes out of OLED device changes with the variation of the 4th voltage signal, for
White light OLED device, i.e. white light OLED device can be emitted the light of different colours with the variation of the 4th voltage signal, to
It can be as needed to adjusting the 4th voltage signal so that single white light OLED device can be emitted different colours as needed
Light.
A kind of driving method of above-mentioned organic light emitting diodde desplay device provided by the embodiments of the present application, as shown in figure 9,
This method includes：
S901, determine the organic light emitting diode device it is current desired go out light color；
S902, according to the organic light emitting diode device it is current desired go out light color, the preset organic light emission two
Pole pipe device go out light color and the liquid crystal cell refractive index correspondence and the preset liquid crystal cell refractive index with control
The relationship of the voltage signal of the liquid crystal cell provides voltage letter for the first electrode of the liquid crystal cell and the second electrode
Number so that liquid crystal deflection, the liquid crystal cell in the liquid crystal cell have current desired with the organic light emitting diode device
Go out the corresponding refractive index of light color.
Organic light emission two provided by the embodiments of the present application is driven using Organic Light Emitting Diode provided by the embodiments of the present application
Pole pipe device changes into the voltage of liquid crystal cell application, so as to change the refractive index of liquid crystal cell and then change organic light emission two
Pole pipe device goes out light color, especially for white light OLED device, changes applied to organic light emitting diode device as needed
The voltage added, can be so that individually white organic LED device be emitted the light of different colours as needed.Therefore nothing
R, G, B sub-pixel need to be distinguished by the way that the luminescent material of different colours is arranged, it is organic without being arranged using multiple mask plates
Luminescent layer so as to avoid influencing the yield of OLED device, and then can improve the PPI of display product；For white light OLED
Device distinguishes R, G, B sub-pixel it is not necessary that the colored filter of different colours is arranged, so as to avoid using colored filter
Reduction, light-color-cross-talk and the colour cell of caused light extraction efficiency are blocked, and then are improved and shown that the light extraction efficiency of product, promotion are aobvious
Show the display effect of product, improve the PPI for showing product, the cost of manufacture of display product can also be reduced.
For white light OLED device, when liquid crystal cell is set to the anode of OLED device, and the first electrode of liquid crystal cell
Upper reception first voltage signal, the first voltage signal are a fixed voltage, are connect in the second electrode of the liquid crystal cell
Receive second voltage signal, when second voltage signal can be changed, according to OLED device it is current desired go out light color, it is preset described organic
LED device goes out the correspondence of light color and the liquid crystal cell refractive index and the preset liquid crystal cell refractive index
With the relationship for the voltage signal for controlling the liquid crystal cell, change second voltage signal so that liquid crystal deflection in the liquid crystal cell,
The liquid crystal cell have with the white organic LED device it is current desired go out the corresponding refractive index of light color.
For white light OLED device, when liquid crystal cell is set to the cathode of OLED device, and the first electrode of liquid crystal cell
Upper reception tertiary voltage signal, the tertiary voltage signal are a fixed voltage, are connect in the second electrode of the liquid crystal cell
Receive the 4th voltage signal, when the 4th voltage signal can be changed, according to OLED device it is current desired go out light color, it is preset described organic
LED device goes out the correspondence of light color and the liquid crystal cell refractive index and the preset liquid crystal cell refractive index
With the relationship for the voltage signal for controlling the liquid crystal cell, change the 4th voltage signal so that liquid crystal deflection in the liquid crystal cell,
The liquid crystal cell have with the white organic LED device it is current desired go out the corresponding refractive index of light color.
The embodiment of the present application also provides a kind of display panels, including above-mentioned organic light emission two provided by the embodiments of the present application
Pole pipe device.
Optionally, display panel provided by the embodiments of the present application further includes the voltage that voltage signal is provided for the liquid crystal cell
Control circuit.Voltage signal is provided for the liquid crystal cell by the voltage control circuit, the embodiment of the present application may be used and carry
The driving method of the organic light emitting diodde desplay device of confession.
It is provided by the embodiments of the present application aobvious by taking display panel includes organic light emitting diode device as shown in Figure 4 as an example
Show panel, as shown in Figure 10, including organic light emitting diode device 15, voltage control circuit, wherein voltage control circuit and hair
Reflecting layer 2 and second electrode 10 in optical diode device 15 connect.
When liquid crystal cell is set to anode, voltage control circuit provides first voltage signal for the first electrode of liquid crystal cell,
Second voltage signal is provided for the second electrode, first voltage signal is a fixed voltage, and second voltage signal is variable.Work as liquid
When brilliant box is set to cathode, voltage control circuit provides tertiary voltage signal for the first electrode of liquid crystal cell, is carried for second electrode
For the 4th voltage signal, wherein tertiary voltage signal is a fixed voltage, and the 4th voltage signal is variable.
The embodiment of the present application also provides a kind of display devices, including above-mentioned display panel provided by the embodiments of the present application.
Display device provided by the embodiments of the present application device such as can be mobile phone, computer, TV.
In conclusion organic light emitting diode device provided by the embodiments of the present application and its driving method, display panel, aobvious
Showing device is provided with liquid crystal cell between reflecting layer and transmission layer, the liquid crystal in liquid crystal cell first electrode and second electrode it
Between voltage under the action of deflect, since liquid crystal is different in the refractive index of long axis direction and short-axis direction, liquid crystal cell is applied
When the voltage added changes, the refractive index of liquid crystal cell can also change therewith, effective light of the optical microcavity of OLED device
Journey changes, and changes to the light color that goes out of OLED device.For white light OLED device, with the variation of refractive index,
Three kinds of components of feux rouges, green light, blue light in white light can detach, therefore, by adjusting the refractive index of white light OLED device
So that white light OLED device is emitted colored light, such as it can be emitted feux rouges, green light or blue light, i.e., single white light OLED device
It can be emitted the light of different colours as needed.There is no need to distinguish R, G, B by the way that the luminescent material of different colours is arranged
Pixel, without organic luminous layer is arranged using multiple mask plates, so as to avoid influencing the yield of OLED device, in turn
The PPI of display product can be improved；Product is shown for white light OLED, is distinguished it is not necessary that the colored filter of different colours is arranged
RGB sub-pixels, so as to avoid hiding using the reduction of light extraction efficiency caused by colored filter, light-color-cross-talk and colour cell
Gear, and then improve the light extraction efficiency of display product, promote the PPI for showing that the display effect of product, raising show product, may be used also
To reduce the cost of manufacture for showing product.
Obviously, those skilled in the art can carry out the application essence of the various modification and variations without departing from the application
God and range.In this way, if these modifications and variations of the application belong to the range of the application claim and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (17)
1. a kind of organic light emitting diode device, which is characterized in that including：
Cathode and anode, and the organic luminous layer between the cathode and the anode, wherein the anode includes anti-
Layer is penetrated, the cathode includes transmission layer；
Liquid crystal cell, the liquid crystal cell is between the reflecting layer and the transmission layer, and the liquid crystal cell includes first electrode
And second electrode, voltage between the first electrode and the second electrode of liquid crystal in liquid crystal cell under the action of, are sent out
Raw deflection.
2. organic light emitting diode device according to claim 1, which is characterized in that the anode further includes positioned at described
Transparency conducting layer between organic luminous layer and the reflecting layer, the liquid crystal cell are located at the transparency conducting layer and the reflection
Between layer.
3. organic light emitting diode device according to claim 2, which is characterized in that first electricity of the liquid crystal cell
The extremely described reflecting layer.
4. organic light emitting diode device according to claim 3, which is characterized in that second electricity of the liquid crystal cell
The extremely described transparency conducting layer.
5. organic light emitting diode device according to claim 3, which is characterized in that second electricity of the liquid crystal cell
Pole is provided between the transparency conducting layer and the reflecting layer between the second electrode and the transparency conducting layer
First insulating layer.
6. according to the organic light emitting diode device described in claim 3 or 4, which is characterized in that the organic light-emitting diodes
When tube device works, first voltage signal is received in the first electrode of the liquid crystal cell, the first voltage signal is one
Fixed voltage receives second voltage signal, the deflection of the liquid crystal in the liquid crystal cell in the second electrode of the liquid crystal cell
Amplitude changes with the variation of the second voltage signal.
7. organic light emitting diode device according to claim 1, which is characterized in that the transmission layer packet of the cathode
The first transmission layer and the second transmission layer are included, second transmission layer is located at the side of first transmission layer far from the anode,
The liquid crystal cell is between first transmission layer and second transmission layer.
8. organic light emitting diode device according to claim 7, which is characterized in that second electricity of the liquid crystal cell
Extremely described second transmission layer.
9. organic light emitting diode device according to claim 8, which is characterized in that first electricity of the liquid crystal cell
Extremely described first transmission layer.
10. organic light emitting diode device according to claim 8, which is characterized in that described the first of the liquid crystal cell
Electrode is between first transmission layer and second transmission layer, and between the first electrode and first transmission layer
It is provided with second insulating layer.
11. according to the organic light emitting diode device described in claim 9 or 10, which is characterized in that the organic light emission two
When pole pipe device works, tertiary voltage signal is received in the first electrode of the liquid crystal cell, the tertiary voltage signal is
One fixed voltage receives the 4th voltage signal in the second electrode of the liquid crystal cell, the liquid crystal in the liquid crystal cell it is inclined
Turn amplitude with the variation of the 4th voltage signal to change.
12. organic light emitting diode device according to claim 1, which is characterized in that the liquid crystal cell further includes being located at
The liquid crystal and the first electrode or the oriented layer between the liquid crystal and the second electrode.
13. organic light emitting diode device according to claim 1, which is characterized in that the organic luminous layer outgoing is white
Light.
14. a kind of driving method of claim 1~13 any one of them organic light emitting diodde desplay device, feature exist
In this method includes：
Determine the organic light emitting diode device it is current desired go out light color；
According to the organic light emitting diode device it is current desired go out light color, the preset organic light emitting diode device go out
Light color and the correspondence of the liquid crystal cell refractive index and the preset liquid crystal cell refractive index and the control liquid crystal cell
Voltage signal relationship, provide voltage signal for the first electrode and the second electrode of the liquid crystal cell so that institute
State liquid crystal deflection in liquid crystal cell, the liquid crystal cell have with the organic light emitting diode device it is current desired go out light color pair
The refractive index answered.
15. a kind of display panel, which is characterized in that including claim 1~13 any one of them Organic Light Emitting Diode device
Part.
16. display panel according to claim 15, which is characterized in that the display panel further includes for the liquid crystal cell
The voltage control circuit of voltage signal is provided.
17. a kind of display device, which is characterized in that including the display panel described in claim 15 or 16.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113690394A (en) * | 2021-08-30 | 2021-11-23 | 京东方科技集团股份有限公司 | Organic electroluminescent device, preparation method and display device |
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| CN105633115A (en) * | 2014-11-27 | 2016-06-01 | 昆山国显光电有限公司 | OLED (organic light-emitting diode) device and manufacturing method therefor, and display apparatus |
| CN105633116A (en) * | 2014-12-01 | 2016-06-01 | 昆山国显光电有限公司 | OLED (Organic Light-Emitting Diode) device and manufacturing method therefor, and display apparatus |
| CN106959546A (en) * | 2016-01-08 | 2017-07-18 | 京东方科技集团股份有限公司 | Backlight and display device |
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| CN105633115A (en) * | 2014-11-27 | 2016-06-01 | 昆山国显光电有限公司 | OLED (organic light-emitting diode) device and manufacturing method therefor, and display apparatus |
| CN105633116A (en) * | 2014-12-01 | 2016-06-01 | 昆山国显光电有限公司 | OLED (Organic Light-Emitting Diode) device and manufacturing method therefor, and display apparatus |
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