CN106206968B - Dot structure of OLED display device and preparation method thereof, OLED display device - Google Patents

Dot structure of OLED display device and preparation method thereof, OLED display device Download PDF

Info

Publication number
CN106206968B
CN106206968B CN201610681026.6A CN201610681026A CN106206968B CN 106206968 B CN106206968 B CN 106206968B CN 201610681026 A CN201610681026 A CN 201610681026A CN 106206968 B CN106206968 B CN 106206968B
Authority
CN
China
Prior art keywords
luminescent layer
blocking block
color blocking
electrode
color
Prior art date
Application number
CN201610681026.6A
Other languages
Chinese (zh)
Other versions
CN106206968A (en
Inventor
闫光
Original Assignee
京东方科技集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to CN201610681026.6A priority Critical patent/CN106206968B/en
Publication of CN106206968A publication Critical patent/CN106206968A/en
Application granted granted Critical
Publication of CN106206968B publication Critical patent/CN106206968B/en

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/50Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes [OLED] or polymer light emitting devices [PLED]
    • H01L51/5012Electroluminescent [EL] layer
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/28Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
    • H01L27/32Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes [OLED]
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/50Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes [OLED] or polymer light emitting devices [PLED]
    • H01L51/5012Electroluminescent [EL] layer
    • H01L51/5036Multi-colour light emission, e.g. colour tuning, polymer blend, stack of electroluminescent layers
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/50Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes [OLED] or polymer light emitting devices [PLED]
    • H01L51/52Details of devices
    • H01L51/5262Arrangements for extracting light from the device
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/50Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes [OLED] or polymer light emitting devices [PLED]
    • H01L51/56Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof

Abstract

The present invention provides the preparation method of the dot structure of OLED display device, including provides substrate, multiple first electrode areas is preset with thereon, for forming first electrode;On substrate and corresponding two neighboring first electrode area forms the first luminescent layer;On substrate and at least corresponding first luminescent layer region forms the second luminescent layer, and the second luminescent layer is stacked with the first luminescent layer, and the color of the two belongs to same primary colors;Second electrode is formed on substrate, the first luminescent layer and the second luminescent layer are formed between the first electrode and the second electrode;Corresponding with the region of the first luminescent layer the first color blocking block and the second color blocking block are formed on substrate, first color blocking block and the second color blocking block are located at the light emission side of first electrode or second electrode, the transmittance curve of first color blocking block and the second color blocking block is different, and the color of the two and the first luminescent layer belong to same primary colors.Blue subpixels light extraction efficiency can be prepared and hybrid processing procedure display devices that the life-span significantly improves.

Description

Dot structure of OLED display device and preparation method thereof, OLED display device

Technical field

The invention belongs to display technology field, and in particular to a kind of dot structure of OLED display device and its preparation side Method, OLED display device.

Background technology

In organic electroluminescence device (Organic Light Emitting Diode, OLED) display device, each picture Plain structure includes multiple sub-pixels, and each sub-pixel includes anode, negative electrode and the luminescent layer being disposed there between, and its work is former Manage and be:Under the electric field driven of luminescent layer between the anode and cathode, cause to light with compound by carrier injection, difference hair Light color caused by the different luminescent layers that luminescent material is formed is also different.

At present, hybrid (solution+evaporation) processing procedure is used to prepare the dot structure of OLED display device, Fig. 1 is existing The operating diagram of the dot structure of OLED display device prepared by technology, as shown in figure 1, OLED pixel structure is sent out including orange Photosphere O, light green color luminescent layer LG and light blue luminescent layer LB, wherein, orange luminescent layer O and light green color luminescent layer LG width are The width of sub-pixel, and light blue luminescent layer LB materials can make it that luminous efficiency is very low using the preparation of solution preparation method, therefore, use Evaporation mode prepares the light blue luminescent layer LB of flood;In addition, the characteristics of colour gamut wide for embodiment OLED, OLED pixel structure also includes According to the colored filter of periodic arrangement, including red color resistance block R, green color blocking block G and navy blue color blocking block DB, that is, not It is required for further improving the luminous excitations of intrinsic EL by colored filter with sub-pixel, so, so as to each The efficiency of sub-pixel decreases, and is serious problems for the relatively low blue subpixels of natively efficiency especially, meeting Bring that the life-span of blue light sub-pixel is very short, power consumption is very big, and then influence power consumption and the life-span of display.

The content of the invention

It is contemplated that at least solves one of technical problem present in prior art, it is proposed that a kind of OLED display device Dot structure and preparation method thereof, OLED display device.

One of to solve the above problems, the present invention provides a kind of dot structure of OLED display device, including first electrode And second electrode;The first luminescent layer and the second luminescent layer are laminated between the first electrode and the second electrode, and described first is luminous The color of layer and second luminescent layer belongs to same primary colors;The quantity of the first electrode is multiple, first luminescent layer The region of the corresponding two neighboring first electrode is set;Second luminescent layer at least corresponds to the first luminescent layer location Domain is set;The first color blocking block and the second color blocking block, institute are additionally provided with the light emission side of the first electrode and the second electrode State the first color blocking block and the second color blocking block two neighboring first electrode corresponding with first luminescent layer respectively Region is correspondingly arranged;The first color blocking block is different with the transmittance curve of the second color blocking block, and the color of the two and institute State the first luminescent layer and belong to same primary colors.

Preferably, the 3rd luminescent layer is also formed between the first electrode and the second electrode;3rd hair Photosphere and first luminescent layer are set with layer;3rd luminescent layer and the region pair of other two neighboring first electrodes It should set;The 3rd color blocking block and the 4th color blocking block are also formed with the light emission side of the first electrode or the second electrode;Institute State the 3rd color blocking block and the 4th color blocking the block two neighboring first electrode corresponding with the 3rd luminescent layer respectively Region is correspondingly arranged;The 3rd color blocking block is different with the color of the 4th color blocking block.

Preferably, the color of first luminescent layer and second luminescent layer is different, and the color of the two respectively with institute State the first color blocking block and the second color blocking block is corresponding.

Preferably, first luminescent layer and the primary colors belonging to second luminescent layer are blueness;First luminescent layer It is respectively one in navy blue luminescent layer and light blue luminescent layer and another with second luminescent layer;First color blocking Block and the second color blocking block are respectively one in navy blue color blocking block and light blue color blocking block and another.

Preferably, second luminescent layer is a flood film.

Preferably, the primary colors belonging to the color of first luminescent layer and second luminescent layer is blueness;Described 3rd The color of luminescent layer is yellow;The first color blocking block and the second color blocking block are respectively navy blue color blocking block and light blue color One in stop block and another;The 3rd color blocking block and the 4th color blocking block are respectively green color blocking block and red color resistance One in block and another.

Preferably, between first luminescent layer and the second luminescent layer and the 3rd luminescent layer and it is described second hair Carrier generation layer is also formed between photosphere.

Preferably, between the first electrode and the firstth luminescent layer and the first electrode and the 3rd luminous The first organic function layer is each formed between layer.

Preferably, the second organic functions of a flood is also formed between the second electrode and second luminescent layer Layer.

Present invention also offers a kind of preparation method of the dot structure of OLED display device, including:One substrate is provided, Multiple first electrode areas are preset with the substrate, each first electrode area is used to form first electrode;Described On substrate and the corresponding two neighboring first electrode area forms the first luminescent layer;It is on the substrate and at least corresponding described First luminescent layer region forms the second luminescent layer, and second luminescent layer is stacked with first luminescent layer, and two The color of person belongs to same primary colors;Second electrode, first luminescent layer and second luminescent layer are formed on the substrate Formed between the first electrode and the second electrode;On the substrate and it is located at the first electrode or described second The light emission side of electrode forms the first color blocking block and the second color blocking block, and the first color blocking block and the second color blocking block are respectively with described the The two neighboring first electrode area is correspondingly arranged corresponding to one luminescent layer, the first color blocking block and the second color blocking block it is saturating Rate curve difference is crossed, and the color of the two and first luminescent layer belong to same primary colors.

Preferably, in addition to:On the substrate and other corresponding two neighboring described first electrode areas form the 3rd Luminescent layer;The 3rd color blocking block and the 4th color blocking block are also formed in the light emission side of the first electrode or second electrode, the described 3rd Color blocking block and the 4th color blocking block respectively with first luminescent layer corresponding to the two neighboring first electrode area it is corresponding, And color is different.

Preferably, the color of first luminescent layer and second luminescent layer is different, and the color of the two respectively with institute The color for stating the first color blocking block and the second color blocking block is corresponding.

Preferably, first luminescent layer and the primary colors belonging to second luminescent layer are blueness;First luminescent layer It is respectively one in navy blue luminescent layer and light blue luminescent layer and another with second luminescent layer;First color blocking Block and the second color blocking block are respectively one in navy blue color blocking block and light blue color blocking block and another.

Preferably, second luminescent layer of a flood is formed on the substrate.

Preferably, first luminescent layer is formed using solwution method;Second luminescent layer is formed using vapour deposition method.

Preferably, the primary colors belonging to the color of first luminescent layer and second luminescent layer is blueness;Described 3rd The color of luminescent layer is yellow;The first color blocking block and the second color blocking block are respectively navy blue color blocking block and light blue color One in stop block and another;The 3rd color blocking block and the 4th color blocking block are respectively green color blocking block and red color resistance One in block and another.

Preferably, the navy blue color blocking block, the light blue color blocking block, the green color blocking block and the red color resistance Block each where the thickness of the first electrode that is formed of the first electrode area it is different.

Preferably, in addition to:Form carrier generation layer on the substrate, the carrier generation layer is positioned at described the Between one luminescent layer and the second luminescent layer and between the 3rd luminescent layer and second luminescent layer.

Preferably, in addition to:The first organic function layer is formed on the substrate, and first organic function layer is located at institute State between first electrode and first luminescent layer and between the first electrode and the 3rd luminescent layer.

Preferably, in addition to:The second organic function layer of a flood, second organic functions are formed on the substrate Layer is formed between the second electrode and second luminescent layer.

Preferably, the carrier generation layer, second organic function layer and second electricity are formed using vapour deposition method Pole;First organic function layer and the 3rd luminescent layer are formed using solwution method.

The present invention also provides a kind of dot structure of OLED display device, using above-mentioned OLED display provided by the invention The preparation method of the dot structure of part is prepared.

The present invention also provides a kind of OLED display device, including dot structure, and the dot structure is provided using the present invention Above-mentioned dot structure.

Preferably, in addition to driving chip, for selecting two corresponding to the first luminescent layer in the selection dot structure Individual first electrode work.

The invention has the advantages that:

Dot structure is prepared using the preparation method of the dot structure of OLED display device provided by the invention, by belonging to The first luminescent layer and the second luminescent layer of same primary colors (such as blueness) are simultaneously same in the presence of first electrode and second electrode Shi Faguang, and light is different by transmittance curve and color and the first luminescent layer belong to the first color blocking block and the of same primary colors Two color blocking blocks, so, it can obtain that efficiency is relatively low compared with high color purity and efficiency is higher compared with high color purity belong to same primary colors two Individual sub-pixel, collectively as the sub-pixel of the primary colors, sub- picture of one of sub-pixel as the primary colors is selected according to different demands Element is luminous, can not only keep the wide colour gamut of display, while can also improve the sub-pixel (especially, blue subpixels) of the primary colors Luminous efficiency, it is therefore possible to use solwution method formed blueness the first luminescent layer, then using vapour deposition method formed blueness second Luminescent layer, so as to the hybrid processing procedure display devices for preparing blue subpixels light extraction efficiency and the life-span significantly improves.

Brief description of the drawings

Fig. 1 is the operating diagram of the dot structure of OLED display device prepared by prior art,

Fig. 2 is the OLED display prepared using the preparation method of the dot structure of OLED display device provided by the invention The sectional view of the dot structure of part;

Fig. 3 is the operating diagram of the dot structure shown in Fig. 2.

Embodiment

To make those skilled in the art more fully understand technical scheme, come below in conjunction with the accompanying drawings to the present invention Dot structure of OLED display device of offer and preparation method thereof, OLED display device are described in detail.

Embodiment 1

Fig. 2 is the OLED display prepared using the preparation method of the dot structure of OLED display device provided by the invention The sectional view of the dot structure of part.Fig. 3 is the operating diagram of the dot structure shown in Fig. 2;Fig. 2 and Fig. 3 are referred to, the present invention The preparation method of the dot structure for the OLED display device that embodiment provides, comprises the following steps:

One substrate 1 is provided, multiple first electrode areas are preset with the substrate 1, each first electrode area For forming first electrode.As shown in Fig. 2 so-called first electrode area refers to that first electrode 2-1,2-2,2-3 and 2-4 are each right Answer region on substrate 1.

On the substrate 1 and the corresponding two neighboring first electrode area forms the first luminescent layer 3.As shown in Fig. 2 First electrode area where first electrode 2-3 and 2-4 is formed with the first luminescent layer 3.

Correspond on the substrate 1 and at least the region of the first luminescent layer 3 and form the second luminescent layer 4, described the Two luminescent layers 4 are stacked with first luminescent layer 3, and the color of the two belongs to same primary colors, and primary colors refers to pass through The mixing preparation of other colors and draw " Essential colour ", including blueness, red and yellow.As shown in Fig. 2 the second luminescent layer 4 For the luminescent layer of a flood, and color is blueness.

Second electrode 5 is formed on the substrate 1, first luminescent layer 3 and second luminescent layer 4 are formed described Between first electrode and the second electrode 5.

First is formed on the substrate 1 and positioned at the light emission side of first electrode (2-1~2-4) or the second electrode 5 Color blocking block 6-3 and the second color blocking block 6-4, the first color blocking block 6-3 and the second color blocking block 6-4 respectively with first luminescent layer The corresponding two neighboring first electrode area is correspondingly arranged, the first color blocking block 6-3 and the second color blocking block 6-4 transmission Rate curve is different, and the color of the two and first luminescent layer 3 belong to same primary colors.So-called transmittance curve difference refers to light It is different through the wave-length coverage of color blocking block, for example, light blue color blocking block and navy blue color blocking block.

Specifically, the lower surface of first electrode is light emission side, and the first color blocking block 6-3 and the second color blocking block 6-4 are formed respectively In first electrode 2-3 and 2-4 underface;First color blocking block 6-3 is light blue color blocking block LB, and the second color blocking block 6-4 is dark blue Color color blocking block DB.

It is understood that the preparation method system of the dot structure using OLED display device provided in an embodiment of the present invention Standby OLED display device, as shown in Fig. 2 luminous by the first luminescent layer and second for belonging to same primary colors (for example, blueness) Layer lights simultaneously in the presence of first electrode and second electrode simultaneously, and light is different by transmittance curve and color and the One luminescent layer belongs to the first color blocking block 6-3 and the second color blocking block 6-4 of same primary colors, so, can obtain efficiency compared with high color purity Relatively low and efficiency two sub-pixels belonging to same primary colors higher compared with high color purity, collectively as the sub-pixel of the primary colors, according to Different demands select sub-pixel for emitting light of one of sub-pixel as the primary colors, can not only keep the wide colour gamut of display, together When can also improve the luminous efficiencies of the color sub-pixels (especially, blue subpixels), it is therefore possible to use solwution method is formed First luminescent layer 3 of blueness, then the second blue luminescent layer 4 is formed using vapour deposition method, so as to prepare blue subpixels The hybrid processing procedure display devices that light extraction efficiency and life-span significantly improve.

In this embodiment, it is preferred that the preparation method also includes:

On the substrate 1 and other corresponding two neighboring described first electrode areas form the 3rd luminescent layer 7.Specifically Ground, other two neighboring first electrode areas are the corresponding region on substrate 1 of first electrode 2-1 and 2-2.

The 3rd color blocking block 6-1 and the 4th color blocking block 6-2 are also formed in the light emission side of the first electrode or second electrode 5, The threeth color blocking block 6-1 and fourth color blocking block 6-2 corresponding with the region of the 3rd luminescent layer 7 respectively with it is described The two neighboring first electrode area (electrode zone where first electrode 2-1 and 2-2) is corresponding corresponding to first luminescent layer Set and color is different.Specifically, as shown in Fig. 2 the lower surface of first electrode is light emission side, the 3rd color blocking block 6-1 and the 4th Color blocking block 6-2 is respectively formed at first electrode 2-1 and 2-2 underface;3rd color blocking block 6-1 is red color resistance block R, the 4th color Stop block 6-2 is green color blocking block G.

In these cases, dot structure includes red sub-pixel, green sub-pixels and blue subpixels, wherein, it is red Sub-pixel include first electrode 2-1, red color resistance block R, the 3rd luminescent layer 7, the second luminescent layer 4 and second electrode 5 and other The film layer of stacking between first electrode 2-1 and second electrode 5;Green sub-pixels include first electrode 2-2, green color blocking Block G, the 3rd luminescent layer 7, the second luminescent layer 4 and second electrode 5 and other between first electrode 2-1 and second electrode The film layer of stacking;Blue subpixels include light blue sub-pixels and dark blue sub-pixels, wherein, light blue sub-pixels include first Electrode 2-3, light blue color blocking block LB, the first luminescent layer 3, the second luminescent layer 4 and second electrode 5, and other positioned at first electricity The film layer of stacking between pole 2-3 and second electrode 5;Dark blue sub-pixels include first electrode 2-4, navy blue color blocking block DB, Second luminescent layer 4, the first luminescent layer 3 and second electrode 5 and other layers between first electrode 2-4 and second electrode 5 Folded film layer.

It is understood that due to the corresponding 3rd color blocking block 6-1 (first electrode 2-1) of the 3rd luminescent layer 7 and described 4th color blocking block 6-2 (first electrode 2-2), in other words, in the timing of size one of the 3rd luminescent layer 7, two can be correspondingly formed Sub-pixel, this can improve the resolution ratio of display device compared with prior art, so as to improve the performance of display device.

Furthermore it is preferred that first luminescent layer 3 is different with the color of second luminescent layer 4, and the color of the two point It is not corresponding with the first color blocking block 6-3 and the second color blocking block 6-4 color.Specifically, the first color blocking block 6-3 and The second color blocking block 6-4 be navy blue color blocking block DB and light blue color blocking block LB in one and another, the first luminescent layer 3 With the second luminescent layer 4 be respectively navy blue luminescent layer DB and light blue luminescent layer LP in one and another, in this case, Most of light that navy blue luminescent layer DB and light blue luminescent layer LP are sent can pass through light blue color blocking block LB or navy blue color blocking Block DB is projected, thus can improve the utilization rate of light.

Specifically, the color of the 3rd luminescent layer 7 is yellow, i.e. the 3rd luminescent layer 7 is Yellow luminous layer Y, this be because Yellow is mixed into for red and green.

It is further preferred that the navy blue color blocking block DB, the light blue color blocking block LB, the green color blocking block G and described Red color resistance block R each where the first electrode area formed described first electrode 2-4,2-3,2-2 and 2-1 thickness Difference, to improve the luminous efficiency of each sub-pixel.

In the present embodiment, the preparation method also includes:

Carrier generation layer 8 is formed on the substrate 1, the carrier generation layer 8 is located at the He of the first luminescent layer 3 Between second luminescent layer 4 and between the 3rd luminescent layer 7 and second luminescent layer 4, as shown in Figure 2.

The first organic function layer 9 formed on the substrate 1, first organic function layer 9 is positioned at the described first electricity Between pole 2-1,2-2,2-3,2-4 and first luminescent layer 3 and described first electrode 2-1,2-2,2-3,2-4 and the 3rd are sent out Between photosphere 7.

The second organic function layer 10 of a flood is formed on the substrate 1, second organic function layer 10 is formed Between the second electrode 5 and second luminescent layer 4.

Preferably, the carrier generation layer 8, second organic function layer 10 and described second are formed using vapour deposition method Electrode 5;First organic function layer 9 and the 3rd luminescent layer 7 are formed using solwution method, it is possible to achieve only with hybrid Making technology can prepare luminous efficiency height and the dot structure of the OLED display device of long lifespan, so as to which manufacture craft is simple, Cost is low.

In addition, specifically, the navy blue color blocking block DB, the light blue color blocking block LP, the green color blocking block G and Formed with planarization layer 11 on the red color resistance block R, formed with insulating barrier 12 on planarization layer 11, first electrode 2-1~ 2-4 is formed on the insulating barrier 12.

Embodiment 2

The embodiment of the present invention provides a kind of dot structure of OLED display device, as shown in Fig. 2 including first electrode (2-1 ~2-4) and second electrode 5;The first luminescent layer 3 and second is laminated between first electrode (2-1~2-4) and second electrode 5 The color of luminescent layer 4, first luminescent layer 3 and second luminescent layer 4 belongs to same primary colors;The quantity of the first electrode To be multiple, the corresponding two neighboring first electrode 2-3 and 2-4 of first luminescent layer 3 region is set;Described second is luminous Layer 4 at least corresponds to the region of the first luminescent layer 3 and set;In the first electrode (2-1~2-4) and the second electrode 5 light emission side is additionally provided with the first color blocking block 6-3 and the second color blocking block 6-4, the first color blocking block 6-3 and second color blocking The block 6-4 two neighboring first electrode 2-3s and 2-4 corresponding with first luminescent layer 3 respectively region is correspondingly arranged;Institute It is different to state the first color blocking block 6-3 and the second color blocking block 6-4 transmittance curve, and the color of the two and described first lights Layer 3 belongs to same primary colors.

Preferably, it is also formed with the 3rd luminescent layer between the first electrode (2-1~2-4) and the second electrode 5 7;3rd luminescent layer 7 and first luminescent layer 3 are set with layer;3rd luminescent layer 7 is two neighboring described with other First electrode 2-1 and 2-2 region are correspondingly arranged;In the first electrode (2-1~2-4) or the light extraction of the second electrode 5 Side is also formed with the 3rd color blocking block 6-1 and the 4th color blocking block 6-2;The 3rd color blocking block 6-1 and the 4th color blocking block 6-2 points The two neighboring first electrode 2-1 and 2-2 not corresponding with the 3rd luminescent layer 7 region is correspondingly arranged;Described 3rd Color blocking block 6-1 and the 4th color blocking block 6-2 color is different.

Preferably, the color of first luminescent layer 3 and second luminescent layer 4 is different, and the color of the two respectively with The first color blocking block 6-3 and the second color blocking block 6-4 color are corresponding.

Specifically, first luminescent layer 3 and the primary colors belonging to second luminescent layer 4 are blueness;Described first is luminous Layer 3 and second luminescent layer 4 be respectively navy blue luminescent layer and light blue luminescent layer in one and another;Described first Color blocking block 6-3 and the second color blocking block 6-4 is respectively one in navy blue color blocking block and light blue color blocking block and another.

Preferably, second luminescent layer 4 is a flood film, can be formed using evaporation mode.

Preferably, the primary colors belonging to the color of first luminescent layer 3 and second luminescent layer 4 is blueness;Described The color of three luminescent layers 7 is yellow;The first color blocking block 6-3 and the second color blocking block 6-4 is respectively navy blue color blocking block With one in light blue color blocking block and another;The 3rd color blocking block 6-1 and the 4th color blocking block 6-2 is respectively green One in color blocking block and red color resistance block and another.

It is further preferred that the navy blue color blocking block, the light blue color blocking block, the green color blocking block and the red color The thickness of each self-corresponding first electrode of stop block is different.

Furthermore it is preferred that between the luminescent layer 4 of the first luminescent layer 3 and second and the 3rd luminescent layer 7 and institute State and be also formed with carrier generation layer 8 between the second luminescent layer 3.Lighted in the first electrode (2-1~2-4) and described first The first organic function layer 9 is each formed between layer 3 and between the first electrode (2-1~2-4) and the 3rd luminescent layer 7. The second organic function layer 10 of a flood is also formed between the second electrode 5 and second luminescent layer 4.Evaporation can be used Method forms the carrier generation layer 8, second organic function layer 10 and the second electrode 5;Institute is formed using solwution method State the first organic function layer 9 and the 3rd luminescent layer 7, it is possible to achieve can prepare luminous effect only with hybrid making technologies The dot structure of rate height and the OLED display device of long lifespan, so as to which manufacture craft is simple, cost is low.

The dot structure of OLED display device provided in an embodiment of the present invention, it can significantly improve the hair of sub-pixel Light efficiency and life-span, especially blue subpixels.

Embodiment 3

The embodiment of the present invention also provides a kind of OLED display device, including dot structure, and the dot structure uses this hair The dot structure that bright above-described embodiment provides.

The OLED display device also includes control chip, for selecting the first luminescent layer in the selection dot structure Two first electrode 2-3 and 2-4 work corresponding to 3.For example, when the blue subpixels in dot structure need to send out light blue smooth, First electrode 2-3 work is then selected, when needing to send out navy blue light, then selects first electrode 2-4 work.

OLED display device provided in an embodiment of the present invention, performance and the life-span of display device can be improved.

It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses Mode, but the invention is not limited in this.For those skilled in the art, the essence of the present invention is not being departed from In the case of refreshing and essence, various changes and modifications can be made therein, and these variations and modifications are also considered as protection scope of the present invention.

Claims (22)

1. a kind of dot structure of OLED display device, it is characterised in that including first electrode and second electrode;
It is laminated with the first luminescent layer and the second luminescent layer between the first electrode and the second electrode, first luminescent layer and described The color of second luminescent layer belongs to same primary colors;
The quantity of the first electrode is multiple, and the region that first luminescent layer corresponds to the two neighboring first electrode is set Put;
Second luminescent layer at least corresponds to the first luminescent layer region and set;
The first color blocking block and the second color blocking block are additionally provided with the light emission side of the first electrode and the second electrode, described The region of stop block of the same colour and the second color blocking block two neighboring first electrode corresponding with first luminescent layer respectively It is correspondingly arranged;
The first color blocking block is different with the transmittance curve of the second color blocking block, and the color of the two and described first lights Layer belongs to same primary colors;
The 3rd luminescent layer is also formed between the first electrode and the second electrode;
3rd luminescent layer and first luminescent layer are set with layer;
3rd luminescent layer and the region of other two neighboring first electrodes are correspondingly arranged;
The 3rd color blocking block and the 4th color blocking block are also formed with the light emission side of the first electrode or the second electrode;
The 3rd color blocking block and the 4th color blocking block respectively corresponding with the 3rd luminescent layer two neighboring described first The region of electrode is correspondingly arranged;
The 3rd color blocking block is different with the color of the 4th color blocking block.
2. the dot structure of OLED display device according to claim 1, it is characterised in that first luminescent layer and institute It is different to state the color of the second luminescent layer, and the color of the two is corresponding with the first color blocking block and the second color blocking block respectively.
3. the dot structure of OLED display device according to claim 2, it is characterised in that first luminescent layer and institute It is blueness to state the primary colors belonging to the second luminescent layer;
First luminescent layer and second luminescent layer be respectively one in navy blue luminescent layer and light blue luminescent layer and Another;
The first color blocking block and the second color blocking block be respectively one in navy blue color blocking block and light blue color blocking block and Another.
4. the dot structure of OLED display device according to claim 1, it is characterised in that second luminescent layer is one Flood film.
5. the dot structure of OLED display device according to claim 1, it is characterised in that first luminescent layer and institute It is blueness to state the primary colors belonging to the color of the second luminescent layer;The color of 3rd luminescent layer is yellow;
The first color blocking block and the second color blocking block be respectively one in navy blue color blocking block and light blue color blocking block and Another;
The 3rd color blocking block and the 4th color blocking block are respectively one in green color blocking block and red color resistance block and another It is individual.
6. the dot structure of OLED display device according to claim 5, it is characterised in that the navy blue color blocking block, The thickness of the light blue color blocking block, the green color blocking block and each self-corresponding first electrode of the red color resistance block is not Together.
7. the dot structure of OLED display device according to claim 1, it is characterised in that in first luminescent layer and Carrier generation layer is also formed between second luminescent layer and between the 3rd luminescent layer and second luminescent layer.
8. the dot structure of OLED display device according to claim 1, it is characterised in that in the first electrode and institute State between the first luminescent layer and be each formed with the first organic function layer between the first electrode and the 3rd luminescent layer.
9. the dot structure of OLED display device according to claim 1, it is characterised in that in the second electrode and institute State the second organic function layer that a flood is also formed between the second luminescent layer.
A kind of 10. preparation method of the dot structure of OLED display device, it is characterised in that including:
One substrate is provided, multiple first electrode areas are preset with the substrate, each first electrode area is used for shape Into first electrode;
On the substrate and the corresponding two neighboring first electrode area forms the first luminescent layer;
Correspond on the substrate and at least the first luminescent layer region and form the second luminescent layer, second luminescent layer It is stacked with first luminescent layer, and the color of the two belongs to same primary colors;
Second electrode is formed on the substrate, and first luminescent layer and second luminescent layer are formed in the first electrode Between the second electrode;
On the substrate and positioned at the first electrode or the second electrode light emission side formed with the first color blocking block and the Two color blocking blocks, the first color blocking block and the second color blocking block respectively corresponding with first luminescent layer two neighboring described first Electrode zone is correspondingly arranged, and the transmittance curve of the first color blocking block and the second color blocking block is different, and the color of the two and institute State the first luminescent layer and belong to same primary colors;
Also include:
On the substrate and other corresponding two neighboring described first electrode areas form the 3rd luminescent layer;
The 3rd color blocking block and the 4th color blocking block, the 3rd color blocking are also formed in the light emission side of the first electrode or second electrode The two neighboring first electrode area corresponding with the 3rd luminescent layer is correspondingly arranged respectively for block and the 4th color blocking block, And color is different.
11. the preparation method of the dot structure of OLED display device according to claim 10, it is characterised in that described The color of one luminescent layer and second luminescent layer is different, and the color of the two respectively with the first color blocking block and described second The color of color blocking block is corresponding.
12. the preparation method of the dot structure of OLED display device according to claim 11, it is characterised in that described Primary colors belonging to one luminescent layer and second luminescent layer is blueness;
First luminescent layer and second luminescent layer be respectively one in navy blue luminescent layer and light blue luminescent layer and Another;
The first color blocking block and the second color blocking block be respectively one in navy blue color blocking block and light blue color blocking block and Another.
13. the preparation method of the dot structure of OLED display device according to claim 10, it is characterised in that described Second luminescent layer of a flood is formed on substrate.
14. the preparation method of the dot structure of OLED display device according to claim 13, it is characterised in that using molten Liquid method forms first luminescent layer;
Second luminescent layer is formed using vapour deposition method.
15. the preparation method of the dot structure of OLED display device according to claim 10, it is characterised in that described Primary colors belonging to the color of one luminescent layer and second luminescent layer is blueness;The color of 3rd luminescent layer is yellow;
The first color blocking block and the second color blocking block be respectively one in navy blue color blocking block and light blue color blocking block and Another;
The 3rd color blocking block and the 4th color blocking block are respectively one in green color blocking block and red color resistance block and another It is individual.
16. the preparation method of the dot structure of OLED display device according to claim 15, it is characterised in that the depth Blue color blocking block, the light blue color blocking block, the green color blocking block and the red color resistance block each where described first The thickness for the first electrode that electrode zone is formed is different.
17. the preparation method of the dot structure of OLED display device according to claim 10, it is characterised in that also wrap Include:
Carrier generation layer is formed on the substrate, and the carrier generation layer is located at first luminescent layer and second and lighted Between layer and between the 3rd luminescent layer and second luminescent layer.
18. the preparation method of the dot structure of OLED display device according to claim 17, it is characterised in that also wrap Include:
The first organic function layer is formed on the substrate, and first organic function layer is located at the first electrode and described Between one luminescent layer and between the first electrode and the 3rd luminescent layer.
19. the preparation method of the dot structure of OLED display device according to claim 18, it is characterised in that also wrap Include:
The second organic function layer of a flood is formed on the substrate, and second organic function layer is formed in the described second electricity Between pole and second luminescent layer.
20. the preparation method of the dot structure of OLED display device according to claim 19, it is characterised in that using steaming Plating method forms the carrier generation layer, second organic function layer and the second electrode;
First organic function layer and the 3rd luminescent layer are formed using solwution method.
21. a kind of OLED display device, including dot structure, it is characterised in that the dot structure is appointed using claim 1-9 Dot structure described in meaning one.
22. OLED display device according to claim 21, it is characterised in that also including driving chip, for selecting a choosing Select two first electrode work corresponding to the first luminescent layer described in the dot structure.
CN201610681026.6A 2016-08-17 2016-08-17 Dot structure of OLED display device and preparation method thereof, OLED display device CN106206968B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610681026.6A CN106206968B (en) 2016-08-17 2016-08-17 Dot structure of OLED display device and preparation method thereof, OLED display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610681026.6A CN106206968B (en) 2016-08-17 2016-08-17 Dot structure of OLED display device and preparation method thereof, OLED display device

Publications (2)

Publication Number Publication Date
CN106206968A CN106206968A (en) 2016-12-07
CN106206968B true CN106206968B (en) 2018-01-26

Family

ID=57523000

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610681026.6A CN106206968B (en) 2016-08-17 2016-08-17 Dot structure of OLED display device and preparation method thereof, OLED display device

Country Status (1)

Country Link
CN (1) CN106206968B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107275373B (en) * 2017-05-22 2019-11-05 上海天马有机发光显示技术有限公司 A kind of organic light emitting display panel and preparation method thereof, display device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006303030A (en) * 2005-04-18 2006-11-02 Matsushita Toshiba Picture Display Co Ltd Electroluminescent element
JP2012155953A (en) * 2011-01-25 2012-08-16 Sony Corp Organic el display device and electronic apparatus
CN104733506B (en) * 2015-04-01 2017-10-24 京东方科技集团股份有限公司 A kind of electro-luminescence display device and display device
CN105097876B (en) * 2015-06-11 2018-07-10 京东方科技集团股份有限公司 Organic Light Emitting Diode OLED display device and device
CN104979486B (en) * 2015-07-15 2017-12-08 京东方科技集团股份有限公司 Organic luminescent device

Also Published As

Publication number Publication date
CN106206968A (en) 2016-12-07

Similar Documents

Publication Publication Date Title
CN202816947U (en) Organic luminescence display device
US10418577B2 (en) White organic light emitting device
US8946735B2 (en) Pixel structure of electroluminescent display panel
CN103811525B (en) Oganic light-emitting display device and the method manufacturing this oganic light-emitting display device
CN102034934B (en) White organic light emitting device
CN103681734B (en) Oled device and manufacture method thereof
CN103915569B (en) Organic light-emitting display device and its manufacture method
CN104681729B (en) Organic light emitting apparatus and use its organic light-emitting display device
CN102610630B (en) Pixel Structure of electric excitation light display panel
US8829785B2 (en) Organic EL device
KR20130036724A (en) Power-efficient rgbw oled display
CN101222022B (en) Organic lighting component
US8922112B2 (en) Light emitting device
TWI235619B (en) Multicolor electroluminescent display
JP6142982B2 (en) Organic light emitting device with improved light emission quality
CN100401857C (en) Organic EL display panel
CN102097455B (en) Oled device
KR101921760B1 (en) Novel oled display architecture
JP6022529B2 (en) Organic electroluminescent device and organic electroluminescent display device
CN103730584A (en) Display panel and display device
US7733014B2 (en) Organic electro-luminescence diode
JP4032733B2 (en) Organic EL device
CN102456847B (en) White organic light emitting device
US7781957B2 (en) Electro-luminescent device with improved efficiency
US9184420B2 (en) Digitized OLED light source

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant