CN110299391A - A kind of display panel and display device - Google Patents
A kind of display panel and display device Download PDFInfo
- Publication number
- CN110299391A CN110299391A CN201910570561.8A CN201910570561A CN110299391A CN 110299391 A CN110299391 A CN 110299391A CN 201910570561 A CN201910570561 A CN 201910570561A CN 110299391 A CN110299391 A CN 110299391A
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- Prior art keywords
- luminescence unit
- light
- pixel defining
- defining layer
- display panel
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
-
- 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
- H10K50/854—Arrangements for extracting light from the devices comprising scattering means
-
- 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
-
- 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
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
Abstract
The embodiment of the invention discloses a kind of display panel and display devices.The display panel includes: substrate, and the pixel defining layer being set on the substrate, and the pixel defining layer includes multiple openings, is provided with a luminescence unit in each opening；The side wall of the opening for the pixel defining layer that the luminescence unit of at least one luminescent color is correspondingly arranged includes scattering adjustment structure.The scheme of the embodiment of the present invention improves the visual angle colour cast of display panel.
Description
Technical field
The present embodiments relate to display technology more particularly to a kind of display panel and display devices.
Background technique
With the development of display technology, people require the display performance of display panel higher and higher, however existing
There are colour casts when carrying out big visual angle and watching for display panel, therefore the visual angle colour cast for improving display panel is urgently to be resolved as industry
The problem of.
Summary of the invention
The present invention provides a kind of display panel and display device, to improve the visual angle colour cast of display panel.
In a first aspect, the embodiment of the invention provides a kind of display panels, comprising:
Substrate, and the pixel defining layer being set on the substrate, the pixel defining layer includes multiple openings, each
A luminescence unit is provided in the opening；
The side wall packet of the opening for the pixel defining layer that the luminescence unit of at least one luminescent color is correspondingly arranged
Include scattering enhancing structure.
Optionally, the scattering adjustment structure is scattering enhancing structure, and the described of at least one luminescent color shines
The light that the luminescence unit that attenuation when the light that unit issues increases with visual angle is greater than other luminescent colors issues increases with visual angle
When attenuation.
Optionally, the side wall of the opening of the corresponding pixel defining layer of the luminescence unit of at least one luminescent color
Surface is provided with concave-convex micro-structure, and the scattering enhancing structure is the concave-convex micro-structure.
Optionally, the side wall of the opening of the corresponding pixel defining layer of the luminescence unit of at least one luminescent color
It is inside provided with scattering particles, the scattering enhancing structure is to be provided with the scattering particles side wall.
Optionally, the scattering particles includes nano SiO 2 particle or polymer particles.
Optionally, the particle size range of the scattering particles is 10nm-100nm.
Optionally, the luminescence unit includes the first luminescence unit, and first luminescence unit corresponds to the pixel definition
The light that the side wall of the opening of layer is issued using the material for absorbing the light that first luminescence unit issues, first luminescence unit
Attenuation when increasing with visual angle is less than the attenuation when light that other luminescence units issue increases with visual angle.
Optionally, first luminescence unit includes in emitting red light unit, green emitting unit and blue-light-emitting unit
One or two.
Optionally, when first luminescence unit is emitting red light unit, the side wall of the opening of the pixel defining layer
Material includes perylene diimides group；
When first luminescence unit is green emitting unit, the material of the side wall of the opening of the pixel defining layer includes
Double fluoro pyrroles borine groups；
When first luminescence unit is blue-light-emitting unit, the material of the side wall of the opening of the pixel defining layer includes
Carbazole or aniline group.
Second aspect, the embodiment of the invention also provides a kind of display device, including power any embodiment of that present invention institute
The display panel stated.
The corresponding picture of luminescence unit that display panel provided in an embodiment of the present invention passes through at least one luminescent color of setting
The side wall of the opening of plain definition layer includes scattering adjustment structure, since scattering adjustment structure can adjust the side wall of pixel defining layer
Scattering process to light, to adjust the light quantity under big visual angle, the ratio that do not share the same light when adjusting big visual angle makes not share the same light big
Light quantity matching when visual angle, improves visual angle colour cast.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic diagram of display device provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Just there are colour cast, inventor's warps when carrying out big visual angle and watching for existing display panel as mentioned in the background art
Cross research and find that the reason of this problem occur is: with the increase of viewing visual angle, the luminescence unit of different luminescent colors is sent out
The brightness decay speed of light out is different, causes the proportion that do not share the same light when big visual angle to change, to colour cast occur.
Based on the above issues, following solution is present embodiments provided:
A kind of display panel is present embodiments provided, Fig. 1 is a kind of signal of display panel provided in an embodiment of the present invention
Figure, with reference to Fig. 1, which includes:
Substrate 10, and the pixel defining layer 20 being set on substrate 10, pixel defining layer 20 include multiple openings 21, often
A luminescence unit 30 is provided in one opening 21；
The side wall 22 of the opening 21 for the pixel defining layer 20 that the luminescence unit 30 of at least one luminescent color is correspondingly arranged wraps
Include scattering adjustment structure 40.
Wherein, luminescence unit 20 may include emitting red light unit, green emitting unit and blue-light-emitting unit.Pixel is fixed
The side wall 22 of the opening 21 of adopted layer 20 is 21 not set luminescence units 30 of opening and the region towards luminescence unit 30.It can basis
The setting scattering adjustment structure 40 on the entire side wall 22 of opening 21 is needed, can also be arranged in the partial region of side wall 22 and scatter
Adjustment structure 40.Scattering adjustment structure 40 can to carry out certain processing to the side wall 22 of pixel defining layer 20, such as doping or
The structure of the formation such as roughening, or the structure being additionally arranged.
Scattering adjustment structure 40 is used to adjust the scattering process of the side wall 22 of pixel defining layer 20 to light, thus adjust with
The light quantity of wide-angle outgoing, the ratio that do not share the same light when adjusting big visual angle improve colour cast.Illustratively, scattering adjustment structure 40 can
Think scattering enhancing structure, disperse the exit direction projected on side wall 22 more, to increase the light quantity under big visual angle, adjusts
The ratio that do not share the same light when saving big visual angle improves visual angle colour cast；Structure can also be weakened for scattering by scattering adjustment structure 40, reduce side
The scattering process of 22 pairs of light of wall, to reduce the light quantity under big visual angle, the ratio that do not share the same light when adjusting big visual angle improves visual angle color
Partially.Scattering adjustment structure 40 can be the newly-increased structure being set on the side wall 22 of pixel defining layer 20, or to pixel
The side wall of definition layer 40 such as is roughened or is adulterated accordingly at the structure formed after processing.
Furthermore, it is possible to the luminous list of the colour cast situation selection setting scattering adjustment structure according to display panel at big visual angle
Scattering adjustment structure a kind of luminescence unit of color can be arranged in member, can also be to the luminescence unit of two or three of color
Setting scattering adjustment structure can improve colour cast as long as the brightness of the light of different colours at big visual angle is enabled to match
?.
The corresponding pixel of luminescence unit 30 that display panel provided in this embodiment passes through at least one luminescent color of setting
The side wall 22 of the opening 21 of definition layer 20 includes scattering adjustment structure 40, since scattering adjustment structure 40 can adjust pixel definition
Scattering process of the side wall 22 of layer 20 to light, so that the light quantity under big visual angle is adjusted, the ratio that do not share the same light when adjusting big visual angle,
The light quantity matching for making not share the same light at big visual angle, improves visual angle colour cast.
Optionally, scattering adjustment structure 40 is scattering enhancing structure, and the luminescence unit 30 of at least one luminescent color is sent out
When the light that the luminescence unit 30 that attenuation when light out increases with visual angle is greater than other luminescent colors issues increases with visual angle
Attenuation.
Specifically, scattering enhancing structure is used to enhance scattering process of the side wall 22 of pixel defining layer 20 to light, make to throw
The exit direction being mapped on side wall 22 is more dispersed, thus increase the light quantity under big visual angle, the ratio that do not share the same light when adjusting big visual angle
Example improves visual angle colour cast.It, can by the biggish setting of the luminescence unit 30 scattering enhancing structure of the attenuation for increasing the time to visual angle
To increase light quantity of the light of the color under big visual angle, the light quantity matching for making not share the same light at big visual angle improves colour cast.
Illustratively, show that picture is partially purple when visual angle as big such as display panel, i.e., big visual angle when green light attenuation be greater than feux rouges
And blue light, then scattering enhancing structure the side wall of the pixel defining layer of green emitting unit can be arranged, to increase green light big
Light quantity when visual angle, so that the light intensity of feux rouges, green light and blue light matches when big visual angle, so as to improve colour cast.If display panel
It shows that picture is partially red when big visual angle, the side wall of the pixel defining layer of green emitting unit and blue-light-emitting unit can be arranged and dissipate
Penetrate enhancing structure, to increase the light quantity of green light and blue light at big visual angle so that when big visual angle feux rouges, green light and blue light light intensity
Match, so as to improve colour cast.
Optionally, Fig. 2 is the schematic diagram of another display panel provided in an embodiment of the present invention, at least one with reference to Fig. 2
22 surface of side wall of the opening 21 of the corresponding pixel defining layer 20 of luminescence unit 30 of luminescent color is provided with concave-convex micro-structure 41,
Scattering enhancing structure is concave-convex micro-structure 41.
Wherein, concave-convex micro-structure 41 makes 22 surface irregularity of side wall of pixel defining layer 20, that is, has biggish thick
Rugosity is not necessarily to change the material of pixel defining layer 20 by setting concave-convex micro-structure 41, and can be by adjusting pixel defining layer
Technological parameter when 20 formation of opening 21 is formed, and is guaranteeing side wall 22 to light projected thereon with stronger scattering work
With increasing the light quantity of wide-angle, while improving big visual angle colour cast, process costs can be reduced.
It should be noted that Fig. 2 merely exemplary shape for showing concave-convex micro-structure 41, size and number, not pair
Restriction of the invention, in other embodiments, can according to the requirement to scattering process be arranged concave-convex micro-structure 41 shape,
Size and number.
Optionally, the side wall 22 of the opening 21 of the corresponding pixel defining layer 20 of luminescence unit 30 of at least one luminescent color
The roughness on surface is greater than 10nm.
Specifically, side wall 22 is weaker to the scattering process of light, to wide-angle when the surface roughness of side wall 22 is too small
Light adjustment effect it is weaker, be greater than 10nm by the way that the roughness on surface of side wall 22 is arranged, it is ensured that side wall 22 pairs of light tool
There is stronger scattering process, disperse the exit direction for projecting the light on side wall 22 more, to effectively increase under big visual angle
Light quantity, the ratio that do not share the same light when effectively adjusting big visual angle, improve visual angle colour cast.
Optionally, Fig. 3 is the schematic diagram of another display panel provided in an embodiment of the present invention, at least one with reference to Fig. 3
It is provided with scattering particles 42 in the side wall 22 of the opening 21 of the corresponding pixel defining layer 20 of luminescence unit 30 of luminescent color, is scattered
Enhancing structure is the side wall 22 for being provided with scattering particles 42.
Wherein, the material of pixel defining layer 20 is organic polymer material.It is fixed pixel can be formed using organic polymer
After the opening 21 of adopted layer 20, scattering particles 42 is formed in side wall 22 by way of doping, can also prepare that form pixel fixed
Directly scattering particles 42 is blended in organic polymer when the material of adopted layer 20, pixel is directly prepared using mixed material
Definition layer 20.It can additionally select the material with certain group as the material of pixel defining layer 20, which can form
Polymer particles enhance the scattering process of 20 side wall 22 of pixel defining layer as scattering particles 42.
By using the scattering of the side wall of the form enhancing pixel defining layer 20 of setting scattering particles 42, need to only increase together
Doping process need to only increase hybrid technique when configuring the material of pixel defining layer 20, the simple process realized, controllably
Property it is high, can be while guaranteeing has lower technology difficulty, it is ensured that side wall 22 has preferable scattering process, effectively
Improve colour cast.
Optionally, scattering particles 42 is nano SiO 2 particle or polymer particles.
Specifically, since cost is relatively low and is easier to adulterate or be mixed into pixel for nano SiO 2 particle and polymer particles
Definition layer 20 is prepared in material, and scattering particles 42 is guaranteeing the tool of side wall 22 using nano SiO 2 particle or polymer particles
While having stronger scattering process, process costs and technology difficulty can be reduced.
Optionally, the particle size range of scattering particles 42 is 10nm-100nm.
Specifically, when the partial size of scattering particles 42 is too small and excessive, it is weaker to the scattering process of light, and to doping process
It is more demanding.Particle size range by the way that scattering particles 42 is arranged is that 10nm-100nm has in the side wall 22 for guaranteeing pixel defining layer 20
While having preferable scattering process, manufacture craft difficulty is reduced.Illustratively, the particle size range of scattering particles 42 can be set
It is set to 30-60nm, such as can be set to 40nm or 50nm, there is preferable scattering in the side wall 22 for guaranteeing pixel defining layer 20
While effect, manufacture craft difficulty is reduced.
Optionally, with reference to Fig. 3, luminescence unit 30 includes the first luminescence unit 31, the corresponding pixel of the first luminescence unit 31
The side wall 22 of the opening 21 of definition layer 20 is using the material for absorbing the light that the first luminescence unit 31 issues, the first luminescence unit 31 hair
Attenuation when light out increases with visual angle is less than the attenuation when light that other luminescence units 30 issue increases with visual angle.
In this way, the side wall 22 of pixel defining layer 20 is enabled to absorb the first luminescence unit 31 hair incident thereon
Light out reduces light quantity of the light at big visual angle that the first luminescence unit 31 issues so that the first luminescence unit 31 issue
The light quantity of light when big visual angle with other colors matches, and improves big visual angle colour cast.
It should be noted that the first luminescence unit 31 can be a kind of single luminescence unit of luminescent color, also can wrap
The luminescence unit of two kinds of luminescent colors is included, the present embodiment is simultaneously not specifically limited, as long as light quantity decays when can reduce big visual angle
Light quantity of the small light at big visual angle improves colour cast.
Optionally, the first luminescence unit includes one in emitting red light unit, green emitting unit and blue-light-emitting unit
Kind or two kinds.
Illustratively, show that picture is partially purple when visual angle as big such as display panel, i.e., big visual angle when feux rouges and blue light attenuation
It is small, then the side wall of the pixel defining layer of emitting red light unit can be set using red light material is inhaled, blue-light-emitting unit is set
The side wall of pixel defining layer is using blue light material is inhaled, to reduce the light quantity of feux rouges and blue light at big visual angle, so that when big visual angle
The light quantity of feux rouges, green light and blue light matches, so as to improve colour cast.It, can be with if showing that picture is partially red when the big visual angle of display panel
The side wall that the pixel defining layer of emitting red light unit is arranged, which uses, inhales red light material, to reduce light quantity of the feux rouges at big visual angle,
So that the light quantity of feux rouges, green light and blue light matches when big visual angle, so as to improve colour cast.
Optionally, when the first luminescence unit 31 is emitting red light unit, the side wall 22 of the opening 21 of pixel defining layer 20
Material includes perylene diimides group；
When first luminescence unit 31 is green emitting unit, the material of the side wall 22 of the opening 21 of pixel defining layer 20 includes
Double fluoro pyrroles borine groups；
When first luminescence unit 31 is blue-light-emitting unit, the material of the side wall 22 of the opening 21 of pixel defining layer 20 includes
Carbazole or aniline group.
Specifically, pixel defining layer 20 can be formed using coating process with photoetching process, for needing to be arranged extinction material
Corresponding extinction group can be mixed into 20 material of pixel defining layer by the side wall 22 of the pixel defining layer 20 of material, can also be
The material comprising the extinction group is directly selected when selecting the material of pixel defining layer 20, is then coated and is lithographically formed phase
The pixel defining layer 20 answered.Due to perylene diimides group, double fluoro pyrroles borine groups and carbazole or aniline group
Preferable extinction effect is all had, and process controllability is good, using above-mentioned material while guaranteeing extinction effect, reduces work
Skill difficulty.
In addition, when the first luminescence unit 31 includes the luminescence unit of two kinds of luminescent colors, it can be to two kinds of luminous face
The material for absorbing corresponding light is respectively adopted in the side wall 22 of the pixel defining layer 20 of the luminescence unit of color.Such as the first luminescence unit 31
Including emitting red light unit and green emitting unit, can the side wall 22 of the pixel defining layer 20 to emitting red light unit respectively adopt
With the material for including carbazole or aniline group, using to the side wall 22 of the pixel defining layer 20 of green emitting unit includes double fluoro
The material of pyrroles's borine group.
The present embodiment additionally provides a kind of display device, and Fig. 4 is a kind of showing for display device provided in an embodiment of the present invention
It is intended to, with reference to Fig. 4, which includes the display panel 200 that any embodiment of that present invention provides.
Wherein, display device 100 can show equipment for mobile phone, wearable device having a display function, computer etc.,
Display device 100 provided in this embodiment includes the display panel 200 that above-mentioned any embodiment proposes, has above-mentioned any implementation
The beneficial effect for the display panel 200 that example proposes, details are not described herein.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above embodiments to this
Invention is described in further detail, but the present invention is not limited to the above embodiments only, is not departing from present inventive concept
In the case of, it can also include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of display panel characterized by comprising
Substrate, and the pixel defining layer being set on the substrate, the pixel defining layer include multiple openings, each described
A luminescence unit is provided in opening；
The side wall of the opening for the pixel defining layer that the luminescence unit of at least one luminescent color is correspondingly arranged includes dissipating
Penetrate adjustment structure.
2. display panel according to claim 1, it is characterised in that:
The scattering adjustment structure is scattering enhancing structure, the light that the luminescence unit of at least one luminescent color issues
The attenuation when light that the luminescence unit that attenuation when increasing with visual angle is greater than other luminescent colors issues increases with visual angle.
3. display panel according to claim 2, it is characterised in that:
The sidewall surfaces of the opening of the corresponding pixel defining layer of the luminescence unit of at least one luminescent color are provided with
Concave-convex micro-structure, the scattering enhancing structure are the concave-convex micro-structure.
4. display panel according to claim 2, it is characterised in that:
It is provided in the side wall of the opening of the corresponding pixel defining layer of the luminescence unit of at least one luminescent color scattered
Radion, the scattering enhancing structure are to be provided with the scattering particles side wall.
5. display panel according to claim 4, it is characterised in that:
The scattering particles includes nano SiO 2 particle or polymer particles.
6. display panel according to claim 4, it is characterised in that:
The particle size range of the scattering particles is 10nm-100nm.
7. display panel according to claim 1, it is characterised in that:
The luminescence unit includes the first luminescence unit, and first luminescence unit corresponds to the side of the opening of the pixel defining layer
Wall is using the material for absorbing the light that first luminescence unit issues, when the light that first luminescence unit issues increases with visual angle
Attenuation be less than the attenuation of light that other luminescence units issue when increasing with visual angle.
8. display panel according to claim 7, it is characterised in that:
First luminescence unit includes one of emitting red light unit, green emitting unit and blue-light-emitting unit or two
Kind.
9. display panel according to claim 8, it is characterised in that:
When first luminescence unit is emitting red light unit, the material of the side wall of the opening of the pixel defining layer includes dinaphthyl
Embedding benzene diimide group；
When first luminescence unit is green emitting unit, the material of the side wall of the opening of the pixel defining layer includes double fluorine
For pyrroles's borine group；
When first luminescence unit is blue-light-emitting unit, the material of the side wall of the opening of the pixel defining layer includes carbazole
Or aniline group.
10. a kind of display device, which is characterized in that including the described in any item display panels of claim 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910570561.8A CN110299391A (en) | 2019-06-27 | 2019-06-27 | A kind of display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910570561.8A CN110299391A (en) | 2019-06-27 | 2019-06-27 | A kind of display panel and display device |
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| CN113488518A (en) * | 2021-06-28 | 2021-10-08 | 昆山工研院新型平板显示技术中心有限公司 | Display panel and display device |
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Application publication date: 20191001 |