CN106298853A - Electroluminescence display panel - Google Patents
Electroluminescence display panel Download PDFInfo
- Publication number
- CN106298853A CN106298853A CN201610703856.4A CN201610703856A CN106298853A CN 106298853 A CN106298853 A CN 106298853A CN 201610703856 A CN201610703856 A CN 201610703856A CN 106298853 A CN106298853 A CN 106298853A
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- Prior art keywords
- pixels
- sub
- display panel
- pixel cell
- blue subpixels
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Classifications
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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
-
- 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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
-
- 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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
Abstract
The invention discloses electroluminescence display panel, this electroluminescence display panel includes multiple pixel cell, each pixel cell includes multiple primary color sub-pixels, the primary color sub-pixels of each of which pixel cell to include between at least two blue subpixels, and at least two blue subpixels being one another in series.By the way, the present invention can reduce the phenomenon of burning of blue subpixels by reducing the electric current of blue subpixels, thus extends the service life of electroluminescence display panel.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to electroluminescence display panel.
Background technology
Electroluminescence display panel has self-luminous characteristic, compared to liquid crystal display, has quickly response, more frivolous,
Wide viewing angle, the advantage such as low-power consumption, and easily prepared flexible device, increasingly paid close attention to by market.
Current electroluminescence display panel plate includes that multiple pixel cell, each pixel cell include by different luminous materials
Red (R), green (G), the sub-pixel of blue (B) three kinds of primary colours that material is formed.Electroluminescent display realizes the principle that colorization shows
For: due to different by the size of current of electroluminescent material, then to send the brightness of light the most different for luminescent material, can divide accordingly
Do not control the size of current that tri-sub-pixels of R, G, B pass through, thus realize tri-sub-pixels of R, G, B and send the light of different brightness,
The least due to each pixel cell again, visually the light that tri-sub-pixels of R, G, B send will be mixed to form each pixel
Unit color to display.
Using the subject matter of the display floater of this design is that the material lifetime of RGB light emitting pixel differs greatly, especially
The life-span being blue light is shorter, causes display, after using a period of time, colour cast occurs, affects display effect and panel life-span.
Summary of the invention
The technical problem that present invention mainly solves is to provide electroluminescence display panel, it is possible to by reducing blue subpixels
Electric current reduce the phenomenon of burning of blue subpixels, thus extend the service life of electroluminescence display panel.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide a kind of electroluminance display face
Plate, it is characterised in that electroluminescence display panel includes that multiple pixel cell, each pixel cell include multiple primary colours picture
Element, the primary color sub-pixels of each of which pixel cell includes at least two blue subpixels, and at least two blue subpixels it
Between be one another in series.
Wherein, in each pixel cell, the gross area of at least two blue subpixels is more than remaining any one face
The gross area of the primary color sub-pixels of color.
Wherein, the primary color sub-pixels of each pixel cell includes red sub-pixel and green sub-pixels, wherein at each
In pixel cell, the gross area of at least two blue subpixels is more than the gross area of red sub-pixel and more than green sub-pixels
The gross area.
Wherein, in each pixel cell, the gross area of red sub-pixel is equal to the gross area of green sub-pixels.
Wherein, in each pixel cell, the gross area of red sub-pixel is more than or less than total face of green sub-pixels
Long-pending.
Wherein, in each pixel cell, at least two blue subpixels includes the anode arranged that is laminated to each other respectively
Layer, electroluminescence layer and cathode layer, wherein the anode layer of a blue subpixels is electrically connected with the cathode layer of another blue subpixels
Connect.
Wherein, in each pixel cell, the blue subpixels at least two blue subpixels and remaining color
Primary color sub-pixels be spaced setting in the first direction, and in another blue subpixels and the primary color sub-pixels of remaining color at least
One edge is perpendicular to the second direction interval setting of first direction.
Wherein, the length direction of a blue subpixels is arranged in a second direction, the length direction edge of another blue subpixels
First direction is arranged.
Wherein, electroluminescence display panel is OLED display panel or QLED display floater.
For solving above-mentioned technical problem, another technical solution used in the present invention is: provide a kind of electroluminance display
Panel, it is characterised in that electroluminescence display panel includes that multiple pixel cell, each pixel cell include multiple primary colours picture
Element, the primary color sub-pixels of each of which pixel cell includes the same sub-pixels of at least two, between at least two is with sub-pixels
It is one another in series, and under identical driving electric current, with the luminescent lifetime of sub-pixels less than the sending out of primary color sub-pixels of remaining color
The light life-span.
The invention has the beneficial effects as follows: be different from the situation of prior art, the electroluminescence display panel of the present invention includes
Multiple pixel cells, each pixel cell includes that multiple primary color sub-pixels, the primary color sub-pixels of each of which pixel cell include
It is one another in series between at least two blue subpixels, and at least two blue subpixels.By the way, due to blue sub-picture
The quantity of element increases, and the gross area becomes big, can reduce the driving electric current of blue subpixels, reduces and burns phenomenon, thus extends electricity
The service life of photoluminescence display floater.
Accompanying drawing explanation
Fig. 1 is the structural representation of electroluminescence display panel the first embodiment of the present invention；
Fig. 2 is two blue subpixels of a pixel cell in electroluminescence display panel the first embodiment of the present invention
Interlayer structure connection diagram；
Fig. 3 is two blue subpixels of a pixel cell in electroluminescence display panel the first embodiment of the present invention
Circuit connection diagram；
Fig. 4 is the structural representation of electroluminescence display panel of the present invention first embodiment first embodiment；
Fig. 5 is the structural representation of electroluminescence display panel of the present invention first embodiment the second embodiment；
Fig. 6 is the structural representation of electroluminescence display panel the first embodiment the 3rd embodiment of the present invention；
Fig. 7 is the structural representation of electroluminescence display panel the second embodiment of the present invention.
Detailed description of the invention
It is the structural representation of electroluminescence display panel the first embodiment of the present invention refering to Fig. 1, Fig. 1.Wherein, Fig. 1
In dotted line frame in represent a pixel cell structure for amplifying schematic diagram.
This electroluminescence display panel includes that multiple pixel cell 10, each pixel cell 10 include multiple primary colours picture
First primary color sub-pixels the 11, second primary color sub-pixels 12, three primary color sub-pixels 13 and four primary in element, such as Fig. 1
Sub-pixel 14.The primary color sub-pixels of each of which pixel cell 10 includes at least two blue subpixels, and at least two is blue
It is one another in series between sub-pixel.Such as the first primary color sub-pixels 11 in Fig. 1 and the second primary color sub-pixels 12 be two blue
Sub-pixel, and the first primary color sub-pixels 11 and the second primary color sub-pixels 12 connect.
It should be understood that Fig. 1 illustrate only the first primary color sub-pixels 11 and the second primary color sub-pixels 12 series relationship, the
The annexation of one primary color sub-pixels the 11, second primary color sub-pixels 12 and other primary color sub-pixels and external circuit is not made
Limit.
Optionally, in other embodiments, pixel cell can also include three, four or more blue
Sub-pixel.
Optionally, in each pixel cell, at least two blue subpixels includes the sun arranged that is laminated to each other respectively
Pole layer, electroluminescence layer and cathode layer, wherein the anode layer of a blue subpixels is electric with the cathode layer of another blue subpixels
Connect.
Wherein, electroluminescence display panel can be OLED (Organic Light Emitting Diode, Organic Light-Emitting
Diode) display floater or QLED (light emitting diode with quantum dots, Quantum-Dots Light-Emitting Diode) display
Panel.
It is in electroluminescence display panel the first embodiment of the present invention the two of a pixel cell referring particularly to Fig. 2, Fig. 2
The interlayer structure connection diagram of individual blue subpixels, the first primary color sub-pixels 11 include being laminated to each other arrange anode layer 111,
Electroluminescence layer 112 and cathode layer 113；Second primary color sub-pixels 12 include being laminated to each other arrange anode layer 121, electroluminescent
Photosphere 122 and cathode layer 123.Wherein, in one embodiment, the anode layer 111 of the first primary color sub-pixels 11 and the second base
The cathode layer 123 of sub-pixels 12 electrically connects；In another embodiment, it is also possible to be the cathode layer of the first primary color sub-pixels 11
113 and second the anode layer 121 of primary color sub-pixels 12 electrically connect.
Wherein, anode layer and cathode layer are generally metal level, and in the selection of anode material, material itself necessarily has height
Work function (High work function) and light-transmissive, thus have the high work function of 4.5eV-5.3eV, stable in properties and
The transparent conducting film of printing opacity, is just widely used in anode.In cathode portion, in order to increase the luminous efficiency of element, electronics
Injection with electricity hole typically requires the metals such as Ag, Al, Ca, In, Li and the Mg of low work function (Low work function), or
The composition metal of low work function makes negative electrode (such as: Mg-Ag magnesium silver).
Wherein, in OLED display panel, electroluminescence layer is organic light emitting diode, generally comprises electron transfer layer
And hole transmission layer, so the electron transfer layer of organic light emitting diode and hole transmission layer must select different organic materials
Material.The most often be used at present to make electron transfer layer material must masking stability high, thermally-stabilised and electron-transporting is good, one
As generally use fluorescent dye compound.Such as Alq, Znq, Gaq, Bebq, Balq, DPVBi, ZnSPB, PBD, OXD, BBOT etc..
And the material of hole transmission layer belongs to a kind of aromatic amine fluorescent compounds, such as organic materials such as TPD, TDATA.
Wherein, in QLED display floater, electroluminescence layer includes be laminated to each other the p-type quantum spot semiconductor of setting, amount
Carbon monolayer and N-type quantum spot semiconductor, typically, quantum dot is to be combined by zinc, cadmium, selenium and sulphur atom.
It is in electroluminescence display panel the first embodiment of the present invention the two of a pixel cell refering to Fig. 3, Fig. 3 simultaneously
The circuit connection diagram of individual blue subpixels, two diodes therein illustrate the side of being connected in series of two blue subpixels
Formula, the order of two blue subpixels can exchange.
Optionally, at a pixel cell, the most also include other color sub-pixels except blue subpixels, such as,
In the present embodiment, in addition to the first blue primary color sub-pixels 11 and the second blue primary color sub-pixels 12, it is also possible to bag
Include the three primary color sub-pixels 13 of redness and green four primary sub-pixel 14.
It should be understood that the quantity of multiple primary color sub-pixels in a pixel cell 10 in Fig. 1, size, arrangement side
Formula can arbitrarily be arranged, and the particularly size of two blue sub-pixels can be differently configured from the big of red and green sub-pixel
Little.
Wherein, in each pixel cell, the gross area of at least two blue subpixels is more than remaining any one face
The gross area of the primary color sub-pixels of color.
Optionally, if the primary color sub-pixels of each pixel cell includes red sub-pixel and green sub-pixels, wherein often
In one pixel cell, the gross area of at least two blue subpixels is more than the gross area of red sub-pixel and more than green sub-picture
The gross area of element.
Optionally, the gross area of red sub-pixel therein and the gross area of green sub-pixels can be equal, red sub-picture
The gross area of element can also be more than or less than the gross area of green sub-pixels.
Wherein, in each pixel cell, the arrangement mode of at least two blue subpixels can be identical or different
, its direction can also arbitrarily be arranged.
Optionally, in each pixel cell, the blue subpixels at least two blue subpixels and remaining face
The primary color sub-pixels of color is spaced in setting, and the primary color sub-pixels of another blue subpixels and remaining color extremely in the first direction
A few edge is perpendicular to the second direction interval of first direction and arranges.
Optionally, the length direction of a blue subpixels is arranged in a second direction, the length direction of another blue subpixels
Arrange in the first direction.
The most several embodiments will be with two indigo plant (B) sub-pixels, red (R) sub-pixels and green (G) dice
As a example by pixel, size and arrangement mode to multiple primary color sub-pixels are introduced.
It is the structural representation of electroluminescence display panel of the present invention first embodiment first embodiment refering to Fig. 4, Fig. 4
Figure.
Wherein, the length direction of a blue subpixels is arranged in a second direction, the length direction edge of another blue subpixels
First direction is arranged, and, two blue subpixels are connected in series.
Optionally, remaining sub-pixel can in the first direction or second direction arrange, be not construed as limiting here.
It is the structural representation of electroluminescence display panel of the present invention first embodiment the second embodiment refering to Fig. 5, Fig. 5
Figure.
Wherein, a blue subpixels and remaining color sub-pixels (R and G) are spaced setting in the first direction, and another is blue
Sub-pixel and red sub-pixel are arranged along the second direction interval being perpendicular to first direction, and, two blue subpixels series connection
Connect.
It is the structural representation of electroluminescence display panel the first embodiment the 3rd embodiment of the present invention refering to Fig. 6, Fig. 6
Figure.
Wherein, a blue subpixels and remaining color sub-pixels (G and R) are spaced setting in the first direction, and another is blue
Sub-pixel and green sub-pixels are arranged along the second direction interval being perpendicular to first direction, and, two blue subpixels series connection
Connect.
It should be understood that in above three embodiment, the area of each blue subpixels can be less than red sub-picture
Element or the area of green sub-pixels, but the gross area of at least two blue subpixels should be more than red sub-pixel or green son
Any one area in pixel.
In other embodiments, the quantity of the primary color sub-pixels of a pixel cell can be not limited to 4, such as,
Can be red, green, blue, blue or green four primary, wherein the number of blue subpixels be at least 2, wherein, and this at least two blueness sub-picture
Element series connection；Further for example, can be red, green, blue, Huang, blue or green five primary colours, wherein the number of blue subpixels be at least 2, wherein,
This at least two blue subpixels is connected.
It should be understood that the introduction of the arrangement mode of multiple sub-pixels is only for example by three above embodiment, do not limit
Embodiments of the present invention processed, a pixel cell at least includes two blue sub-pixels, all in protection scope of the present invention
Within.
Being different from prior art, the electroluminescence display panel of present embodiment includes multiple pixel cell, each pixel
Unit includes that multiple primary color sub-pixels, the primary color sub-pixels of each of which pixel cell include at least two blue subpixels, and
It is one another in series between at least two blue subpixels.By the way, owing to the quantity of blue subpixels increases, the gross area becomes
Greatly, the driving electric current of blue subpixels can be reduced, reduce and burn phenomenon, thus extend the use longevity of electroluminescence display panel
Life.
It is the structural representation of electroluminescence display panel the second embodiment of the present invention refering to Fig. 7, Fig. 7.
This electroluminescence display panel includes that multiple pixel cell 70, each pixel cell 70 include multiple primary color sub-pixels
(in such as Fig. 7 71,72,73,74), the primary color sub-pixels of each of which pixel cell 70 includes the same sub-pixels of at least two
(71 in such as Fig. 7 and 72), at least two is one another in series with between sub-pixels, and under identical driving electric current, same to dice
The luminescent lifetime of pixel is less than the luminescent lifetime of the primary color sub-pixels of remaining color.
It should be understood that the quantity of the present embodiment mainly sub-pixel that the increase life-span is shorter, and connected, thus
Its calcination phenomenon can be reduced, to extend its life-span by reducing its electric current.
Specifically, as a example by R, G, B three primary color sub-pixels:
Under identical driving electric current, if the life-span of R sub-pixel is less than G sub-pixel and B sub-pixel, then can be a pixel
Unit arranges the R sub-pixel of at least two series connection, drives electric current by reducing it, extend the life-span of R sub-pixel.
Under identical driving electric current, if the life-span of G sub-pixel is less than R sub-pixel and B sub-pixel, then can be a pixel
Unit arranges the G sub-pixel of at least two series connection, drives electric current by reducing it, extend the life-span of G sub-pixel.
Under identical driving electric current, if the life-span of B sub-pixel is less than R sub-pixel and G sub-pixel, then can be a pixel
Unit arranges the B sub-pixel of at least two series connection, drives electric current by reducing it, extend the life-span of B sub-pixel.
It should be understood that in the present embodiment, the size of multiple sub-pixels and arrangement mode are referred to above-mentioned
Multiple embodiments in one embodiment, repeat no more here.
Being different from prior art, the electroluminescence display panel of present embodiment includes multiple pixel cell, each pixel
Unit includes that multiple primary color sub-pixels, the primary color sub-pixels of each of which pixel cell include the same sub-pixels of at least two, extremely
Few two are one another in series with between sub-pixels, and under identical driving electric current, are less than remaining with the luminescent lifetime of sub-pixels
The luminescent lifetime of the primary color sub-pixels of color.By the way, it is possible to by increasing the quantity of life-span shorter sub-pixel, with
Reduce its electric current, extend its life-span, thus extend the service life of electroluminescence display panel.
The foregoing is only embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilization is originally
Equivalent structure or equivalence flow process that description of the invention and accompanying drawing content are made convert, or are directly or indirectly used in what other were correlated with
Technical field, is the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. an electroluminescence display panel, it is characterised in that described electroluminescence display panel includes multiple pixel cell, often
Pixel cell described in one includes multiple primary color sub-pixels, and the described primary color sub-pixels of pixel cell described in each of which includes at least
It is one another in series between two blue subpixels, and described at least two blue subpixels.
Electroluminescence display panel the most according to claim 1, it is characterised in that in pixel cell each described,
The gross area of described at least two blue subpixels is more than the gross area of the primary color sub-pixels of remaining any one color.
Electroluminescence display panel the most according to claim 2, it is characterised in that the described base of each described pixel cell
Sub-pixels includes red sub-pixel and green sub-pixels, and wherein in pixel cell each described, described at least two is blue
The gross area of the sub-pixels gross area more than described red sub-pixel and the gross area more than described green sub-pixels.
Electroluminescence display panel the most according to claim 3, it is characterised in that in pixel cell each described,
The gross area of described red sub-pixel is equal to the gross area of described green sub-pixels.
Electroluminescence display panel the most according to claim 3, it is characterised in that in pixel cell each described,
The gross area of described red sub-pixel is more than or less than the gross area of described green sub-pixels.
Electroluminescence display panel the most according to claim 1, it is characterised in that in pixel cell each described,
Described at least two blue subpixels includes anode layer, electroluminescence layer and the cathode layer arranged that be laminated to each other respectively, wherein
The anode layer of blue subpixels described in electrically connects with the cathode layer of blue subpixels another described.
Electroluminescence display panel the most according to claim 1, it is characterised in that in pixel cell each described,
The primary color sub-pixels of blue subpixels and remaining color described in described at least two blue subpixels one in the first direction between
Every setting, and another described blue subpixels is perpendicular to described first with at least one edge in the primary color sub-pixels of remaining color
The second direction interval in direction is arranged.
Electroluminescence display panel the most according to claim 7, it is characterised in that the length side of a described blue subpixels
Arranging to along described second direction, the length direction of another blue subpixels described is arranged along described first direction.
Electroluminescence display panel the most according to claim 1, it is characterised in that described electroluminescence display panel is
OLED display panel or QLED display floater.
10. an electroluminescence display panel, it is characterised in that described electroluminescence display panel includes multiple pixel cell,
Each described pixel cell includes multiple primary color sub-pixels, the described primary color sub-pixels of pixel cell described in each of which include to
Few two same sub-pixels, described at least two is one another in series with between sub-pixels, and under identical driving electric current, described same
The luminescent lifetime of sub-pixels is less than the luminescent lifetime of the primary color sub-pixels of remaining color.
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| CN201610703856.4A CN106298853B (en) | 2016-08-22 | 2016-08-22 | Electroluminescence display panel |
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| CN201610703856.4A CN106298853B (en) | 2016-08-22 | 2016-08-22 | Electroluminescence display panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108389550A (en) * | 2018-01-31 | 2018-08-10 | 上海天马有机发光显示技术有限公司 | The driving method and organic light-emitting display device of display screen |
| CN108712526A (en) * | 2018-04-28 | 2018-10-26 | 维沃移动通信有限公司 | A kind of screen and mobile terminal |
| CN109192753A (en) * | 2018-07-27 | 2019-01-11 | 深圳市华星光电技术有限公司 | OLED display panel and preparation method thereof |
| CN111009195A (en) * | 2019-12-23 | 2020-04-14 | Oppo广东移动通信有限公司 | Display structure, display screen assembly and electronic equipment |
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| CN204360740U (en) * | 2015-01-16 | 2015-05-27 | 昆山维信诺科技有限公司 | A kind of dot structure and there is the display device of this dot structure |
| CN104933981A (en) * | 2015-07-10 | 2015-09-23 | 深圳市华星光电技术有限公司 | Pixel structure and high-brightness wide-color-gamut long-life display method |
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| CN101552283A (en) * | 2008-03-31 | 2009-10-07 | 株式会社日立显示器 | Organic light-emitting display device |
| CN104465710A (en) * | 2014-12-26 | 2015-03-25 | 京东方科技集团股份有限公司 | Organic light-emitting diode display panel and display device |
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| CN104933981A (en) * | 2015-07-10 | 2015-09-23 | 深圳市华星光电技术有限公司 | Pixel structure and high-brightness wide-color-gamut long-life display method |
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| CN108389550A (en) * | 2018-01-31 | 2018-08-10 | 上海天马有机发光显示技术有限公司 | The driving method and organic light-emitting display device of display screen |
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| CN111009195A (en) * | 2019-12-23 | 2020-04-14 | Oppo广东移动通信有限公司 | Display structure, display screen assembly and electronic equipment |
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| Publication number | Publication date |
|---|---|
| CN106298853B (en) | 2019-05-03 |
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