CN108538885A - A kind of dot structure, array substrate and display device - Google Patents
A kind of dot structure, array substrate and display device Download PDFInfo
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- CN108538885A CN108538885A CN201810188321.7A CN201810188321A CN108538885A CN 108538885 A CN108538885 A CN 108538885A CN 201810188321 A CN201810188321 A CN 201810188321A CN 108538885 A CN108538885 A CN 108538885A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
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- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of dot structure, array substrate and display device, dot structure includes：The sub-pixel unit of array setting, the spacer material for being set to the pixel defining layer of each sub-pixel unit both sides and being set in pixel defining layer；Wherein, the spacer material for will the outside light reflection in each sub-pixel unit both sides return the sub-pixel unit where region in.The dot structure is by being respectively provided with pixel defining layer in the both sides of each sub-pixel unit and forming the spacer material with reflex in the light extraction region of each sub-pixel unit both sides, the light reflection that each sub-pixel unit both sides leak out can be gone back in this way, and then the both sides of pixel unit is avoided light leakage phenomena occur.Therefore, herein described dot structure, array substrate and display device can reduce the light leakage of pixel unit both sides, improve pixel unit both sides due to caused by light leakage the problem of color error ratio, while improving light source utilization rate, reduce power consumption.
Description
Technical field
The present invention relates to liquid crystal display correlative technology field, a kind of dot structure, array substrate and display dress are particularly related to
It sets.
Background technology
Currently, with the quick application of display equipment and development so that the requirement for display device is also more next accordingly
It is higher, especially for considering in the experience of user, it is more it may be noted that user visual experience degree.For example, more hot at present
Organic Light Emitting Diode (Organic Light Emitting Diode, OLED) device of door is one kind under electric field action
The device for keeping organic material luminous, therefore, OLED have the characteristics that high contrast, achievable ultrathin flexible, response time are short.Mesh
Before, OLED shows that lighting engineering by leaps and bounds develops, and while meeting users ' individualized requirement, also exposes some and asks
Topic, wherein more to be exactly the color error ratio of OLED white pictures under different angle can seriously affect user's body to distinct issues
It tests.
Wherein, because the reason of microcavity effect makes brightness not obey Lambert with visual angle attenuation curve (L-Decay)
In the case of (Lambert ideal model) body, the trichromatic L-Decay trend of RGB is not consistent, can cause in this way chromaticity coordinates (x,
Y) offset, for example when the brightness of B reduces relative to RG, white picture will be partially yellow, Z values at this time reduces, while color
Coordinate (x, y) can become larger.Again because there are various factors such as patent barriers, current pixel is difficult to be designed to symmetrical structure,
The colour cast that this also results in equal angular different direction is asymmetric, such as：Screen side pastiness, side hair powder.It in this way can be serious
Influence the visual experience of user.
Therefore, during realizing the application, the inventor finds that the existing technology has at least the following problems：Current picture
The especially asymmetric pixel structure of plain structure causes the both sides of pixel region to go out there are light leakage phenomena and both sides light leakage asymmetry
Existing color error ratio, and then seriously affect the sighting distance experience of user.In addition, light leakage phenomena can also influence source efficiency, increase power consumption.
Invention content
In view of this, it is an object of the invention to propose a kind of dot structure, array substrate and display device, can reduce
The light leakage of pixel unit both sides improves pixel unit both sides due to caused by light leakage the problem of color error ratio, while improving light source
Utilization rate reduces power consumption.
Based on above-mentioned purpose, the application's in a first aspect, providing a kind of dot structure, including：The son of array setting
Pixel unit, the pixel defining layer for being set to each sub-pixel unit both sides and the dottle pin being set in the pixel defining layer
Object；Wherein, the spacer material is used to return the outside light reflection in each sub-pixel unit both sides where the sub-pixel unit
In region.
Optionally, the material of the spacer material is reflectorized material, the contact surface of the spacer material and the pixel defining layer
For reflecting surface.
Optionally, the reflectorized material is silver.
Optionally, the spacer material is deposited by fine metal mask plate and is prepared.
Optionally, the pixel defining layer is arcuation bulge-structure, and the pixel defining layer includes close to corresponding sub- picture
First cambered surface of plain unit and the second cambered surface away from corresponding sub-pixel unit；The spacer material is formed with second cambered surface
Reflecting surface.
Optionally, the pixel defining layer between adjacent subpixels unit forms a groove for accommodating spacer material, institute
Spacer material is stated to be set in the groove.
Optionally, the groove is less than preset spacing threshold at a distance from underlay substrate.
Optionally, the pixel defining layer of each sub-pixel unit both sides and the spacer material are arranged symmetrically.
In the second aspect of the application, a kind of array substrate is additionally provided, the array substrate includes any of the above-described institute
The dot structure stated.
In the third aspect of the application, a kind of display device is additionally provided, which is characterized in that the display device includes institute
The array substrate stated.
From the above it can be seen that dot structure provided by the invention, array substrate and display device, by each
The both sides of sub-pixel unit are respectively provided with pixel defining layer and spacer material and make the spacer material in each sub-pixel unit
The light extraction region of both sides forms reflex, the light reflection that the spacer material described in this way can leak out each sub-pixel unit both sides
It goes back, and then the both sides of pixel unit is avoided light leakage phenomena occur.On the one hand, since the spacer material of both sides can greatly reduce leakage
Light, and then the color error ratio phenomenon of sub-pixel unit both sides can be optimized；On the other hand, less light leakage can improve light source profit
With rate and reduce power consumption.Therefore, herein described dot structure, array substrate and display device can reduce pixel unit two
The light leakage of side improves pixel unit both sides due to caused by light leakage the problem of color error ratio, while improving light source utilization rate, reduces
Power consumption.
Description of the drawings
Fig. 1 is the schematic diagram of one embodiment of existing asymmetric dot structure；
Fig. 2 is the corresponding schematic partial cross-sectional view of existing asymmetric dot structure；
Fig. 3 is the CIE1931 curve synoptic diagrams in the case of existing one group of colour cast asymmetry；
Fig. 4 is the structural schematic diagram of dot structure one embodiment provided by the invention；
Fig. 5 is the corresponding schematic partial cross-sectional view of dot structure provided by the invention；
Fig. 6 is another corresponding schematic partial cross-sectional view of dot structure provided by the invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
It should be noted that all statements for using " first " and " second " are for differentiation two in the embodiment of the present invention
The non-equal entity of a same names or non-equal parameter, it is seen that " first " " second " only for the convenience of statement, does not answer
It is interpreted as the restriction to the embodiment of the present invention, subsequent embodiment no longer illustrates this one by one.
It the problem of color error ratio that the application is brought to user based on existing leakage problem and accordingly, proposes
A kind of improved structure, can avoid the appearance of the above problem.
First, it is the schematic diagram of one embodiment of existing asymmetric dot structure shown in referring to Fig.1, Fig. 2 is Fig. 1 pairs
The schematic partial cross-sectional view answered.As seen from the figure, the problems such as existing dot structure design is due to patent barrier, generally use pixel
Asymmetric structure design, and spacer material is just arranged for the both sides of a pixel unit usually only pixel, specifically, usually
There are red sub-pixel 11, green sub-pixels 12 and blue subpixels 13 in one pixel unit, and what existing array was arranged
Dot structure is typically only capable to be set as asymmetric in-between, and spacer material only is arranged in the both sides of a complete pixel unit
3, such structure is easy to the color error ratio problem for light leakage and both sides occur, with reference to Fig. 2 it is found that some sub-pixel unit
1, for example, spacer material is not present in the left side of the blue subpixels 13 in Fig. 1, and right side is since there are spacer material 3 and and pixels
It defines layer 2 and forms a width bigger, the higher bulge-structure of height, so that the light in 1 region of sub-pixel unit
When escaping to both sides, it will the problem of different angle outgoing occur, and then causing color error ratio.It should be noted that in Fig. 1
Pixel defining layer is not drawn, but each sub-pixel is bound by the pixel defining layer.
It is the CIE1931 curve synoptic diagrams in the case of existing one group of colour cast asymmetry, as seen from the figure, base with reference to shown in Fig. 3
Colour cast trend in x coordinate both sides is significantly different, and left side is obviously partially green, and the apparent inclined powder in right side, so that user is in left and right
There is visibly different color error ratio when watching in two side directions, and seriously affect the visual experience of user.
For the above situation, the application proposes a kind of dot structure that can optimize colour cast and reduce power consumption.Specifically,
It is the structural schematic diagram of dot structure one embodiment provided by the invention with reference to shown in Fig. 4；Fig. 5 is picture provided by the invention
The corresponding schematic partial cross-sectional view of plain structure.As seen from the figure, the dot structure of the application proposition includes：The son of array setting
It pixel unit 1, the pixel defining layer 2 for being set to 1 both sides of each sub-pixel unit and is set in the pixel defining layer 2
Spacer material 3；Wherein, the spacer material 3 is used to the outside light reflection in 1 both sides of each sub-pixel unit returning the sub-pixel unit
In the region at place.And then the light wave in sub-pixel unit can be made to go out from intermediate field emission, without exist to
Two phenomenon of side light leakage.The sub-pixel unit 1 is chosen as red sub-pixel 11, green sub-pixels 12 and blue subpixels 13
In one.In this way, the spacer material by being provided with reflex in the corresponding light extraction region in the both sides of each sub-pixel unit 1
3 so that the light that the sub-pixel unit 1 is escaped to both sides will be reflected back by the spacer material 3 in pixel region, and then only
It can launch in pixel region, in this way, can not only improve the utilization rate of light source, but also can avoid causing due to light leakage
The various problems such as aberration, meanwhile, based on the application be respectively provided with reflex for the both sides of each sub-pixel unit 1
Spacer material 3 so that the interference between light will not be caused between adjacent subpixels unit 1, and then improve the matter of display
Amount.
By above-described embodiment it is found that herein described dot structure in the both sides of each sub-pixel unit by being respectively provided with picture
Element defines layer and spacer material and the spacer material is made to form reflection in the light extraction region of each sub-pixel unit both sides and make
With the spacer material described in this way can go back the light reflection that each sub-pixel unit both sides leak out, and then avoid pixel unit
There is light leakage phenomena in both sides.On the one hand, since the spacer material of both sides setting can greatly reduce side light leakage, and then can optimize
The color error ratio phenomenon of sub-pixel unit both sides；On the other hand, less light leakage can improve light source utilization rate and reduce work(
Consumption.Therefore, herein described dot structure can reduce the light leakage of pixel unit both sides, improve pixel unit both sides due to light leakage
The problem of caused color error ratio, while light source utilization rate is improved, reduce power consumption.
In the application some optional embodiments, the material of the spacer material 3 is reflectorized material, the spacer material and institute
The contact surface for stating pixel defining layer 2 is reflecting surface 4.Preferably, the reflectorized material is silver-colored (Ag).In this way, only it is required that institute
The marginal position that pixel defining layer 2 is stated in each sub-pixel unit 1 forms a contact surface, then so that having light-reflecting property
Spacer material 3 is set on the contact surface, so that it may to form a reflecting surface 4 with reflex, and then pass through the reflection
The light reflection that 1 both sides of sub-pixel unit are escaped is gone back in face 4, in such manner, it is possible to not making larger knot to entire dot structure
Leakage problem is solved on the basis of structure and technique change, meanwhile, the present embodiment is also by equal in 1 both sides of each sub-pixel unit
Spacer material 3 is set and corresponding reflecting surface 4 to interfere with each other adjacent sub-pixel unit 1, it is further excellent
Change colour cast problem and reduces power consumption.In addition, the conduction of corresponding cathode can be also improved as reflecting material by using Ag
Property, to increase the luminous homogeneity of panel and reduce power consumption.
Optionally, the spacer material is deposited by fine metal mask plate (FMM, Fine metal mask) and is prepared.This
Sample can so that the preparation of spacer material is more accurate, fine, so that the reflecting surface 4 is more stablized effectively.
It should be noted that herein described reflecting surface 4, which is not limited to spacer material 3, uses reflecting material, can also pass through
Central reflector layer is set or is subtracted by the difference of spacer material and pixel defining layer material forms certain total reflection structure
The escape of few light wave, as long as so that finally forming the reflecting surface with reflex in the both sides of sub-pixel unit 1 belongs to this
The mentality of designing of application, specific structure type and corresponding simple variant belong to the application design concept, this implementation
Example is not repeated this description.
In the application some optional embodiments, referring to Figure 5, the pixel defining layer 2 is arcuation bulge-structure,
And the pixel defining layer 2 includes close to the first cambered surface 21 of corresponding sub-pixel unit 1 and away from corresponding sub-pixel unit 1
Second cambered surface 22；The spacer material 3 forms reflecting surface 4 with second cambered surface 22.In this way, by making the pixel defining layer 2 to be
Arcuation bulge-structure can form reflecting surface 4 on 1 outermost interface of sub-pixel unit, on the one hand, arcuation bulge-structure can
To form stable structure, is conducive to technique and realizes and be on the other hand in edge using the safety and stability of process
Reflecting surface 4 can not only play preferable reflex but also harmful effect will not have been caused to 1 centre position light wave of sub-pixel unit.
In the application some preferred embodiments, the pixel defining layer between adjacent subpixels unit forms one and is used for
The groove 5 of spacer material is accommodated, the spacer material 3 is set in the groove 5.In this way, not only so that the preparation of the spacer material 3
It is simpler convenient, and structure is more reliable and more stable, can ensure there is enough thickness and coverage area, in addition, also
Adjacent subpixels unit can be allow to share a spacer material 3, reduce cost.
Further, the groove 3 is less than preset spacing threshold at a distance from underlay substrate.In this way, by making dottle pin
The thickness of pixel defining layer between object 3 and underlay substrate is thin as far as possible or even the pixel defining layer of adjacent subpixels unit
Mutually partition can further avoid still causing light leakage phenomena due to existing gap.
In the application some optional embodiments, it is corresponding another to show dot structure provided by the invention with reference to Fig. 6
One schematic partial cross-sectional view.As seen from the figure, in the present embodiment, the pixel defining layer of each sub-pixel unit both sides and
The spacer material is arranged symmetrically.Namely the optical texture of 1 both sides of each sub-pixel unit is designed as symmetrically, in this way,
On the one hand can be realized in order to the technique of corresponding construction, on the other hand can make in the pixel region of each sub-pixel unit to
The light wave of external diffusion also due to symmetrical optical texture and there is same colour cast, namely to enable to user to have better
Visual experience.
It should be noted that arranged symmetrically both including corresponding on the adjacent direction in left and right in view described in above-described embodiment
Optical texture it is symmetrical, also include front and back adjacent direction on for itself sub-pixel unit be symmetrical arranged.
In the another aspect of the application, a kind of array substrate is additionally provided, the array substrate includes any of the above-described reality
Apply the dot structure described in example.Further, present invention also provides a kind of display device, the display device includes the battle array
Row substrate.Include the dot structure described in any of the above-described embodiment based on the array substrate and display device, therefore has
Same technique effect, the present embodiment are not repeated this description.
In summary, the application is asked for colour cast caused by light leakage existing in the prior art and dot structure asymmetry
Topic, by researching and analysing, the angle different from two improves or solves the above problems inventor respectively.Wherein, for
Leakage problem may be used certain structure and morphology and design so that light leakage light leakage or is not lacked in both sides as far as possible, thus can be with
Overcome the adverse consequences brought based on light leakage, meanwhile, the display area based on entire pixel unit itself also has certain angle
Degree diverging, it seem likely that still there are both sides problem of parallax experienced, therefore, inventor thinks in the base for not changing pixel asymmetry
On plinth, user can be improved by symmetry that whole pixel is shown by improving the optical texture of pixel unit both sides to improve
Based on visual experience caused by pixel asymmetry.Thus, it is possible to know that the application is capable of providing a kind of optimization colour cast and reduces
The dot structure of power consumption, basic principle include at least：First, enabling the optical texture of both sides in pixel coverage symmetrical, second is that by light wave
It is limited in a sub-pixel unit, prevent propagation and escape of the light wave in anisopleual structure, and then cause colour cast etc.
Problem.
Those of ordinary skills in the art should understand that：The discussion of any of the above embodiment is exemplary only, not
It is intended to imply that the scope of the present disclosure (including claim) is limited to these examples；Under the thinking of the present invention, above example
Or can also be combined between the technical characteristic in different embodiments, step can be realized with random order, and be existed such as
Many other variations of the different aspect of the upper present invention, for simplicity, they are not provided in details.
The embodiment of the present invention be intended to cover fall within the broad range of appended claims it is all it is such replace,
Modifications and variations.Therefore, all within the spirits and principles of the present invention, any omission, modification, equivalent replacement, the improvement made
Deng should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of dot structure, which is characterized in that including：The sub-pixel unit of array setting is set to each sub-pixel unit
The pixel defining layer of both sides and the spacer material being set in the pixel defining layer；Wherein, the spacer material is for will be each
In region where the outside light reflection in the sub-pixel unit both sides time sub-pixel unit.
2. dot structure according to claim 1, which is characterized in that the material of the spacer material is reflectorized material, described
Spacer material and the contact surface of the pixel defining layer are reflecting surface.
3. dot structure according to claim 2, which is characterized in that the reflectorized material is silver.
4. dot structure according to claim 3, which is characterized in that the spacer material is deposited by fine metal mask plate
It prepares.
5. dot structure according to claim 1, which is characterized in that the pixel defining layer is arcuation bulge-structure, and
The pixel defining layer includes the second arc close to the first cambered surface of corresponding sub-pixel unit and away from corresponding sub-pixel unit
Face；The spacer material forms reflecting surface with second cambered surface.
6. dot structure according to claim 1, which is characterized in that the pixel defining layer shape between adjacent subpixels unit
At a groove for accommodating spacer material, the spacer material is set in the groove.
7. dot structure according to claim 6, which is characterized in that the groove is less than default at a distance from underlay substrate
Spacing threshold.
8. dot structure according to claim 1, which is characterized in that the pixel of each sub-pixel unit both sides defines
Layer and the spacer material are arranged symmetrically.
9. a kind of array substrate, which is characterized in that the array substrate includes claim 1-8 any one of them pixel knots
Structure.
10. a kind of display device, which is characterized in that the display device includes the array substrate described in claim 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188321.7A CN108538885B (en) | 2018-03-07 | 2018-03-07 | Pixel structure, array substrate and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188321.7A CN108538885B (en) | 2018-03-07 | 2018-03-07 | Pixel structure, array substrate and display device |
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| CN108538885A true CN108538885A (en) | 2018-09-14 |
| CN108538885B CN108538885B (en) | 2021-02-19 |
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| CN201810188321.7A Active CN108538885B (en) | 2018-03-07 | 2018-03-07 | Pixel structure, array substrate and display device |
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| CN111029482A (en) * | 2019-12-17 | 2020-04-17 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
| CN112785914A (en) * | 2019-11-08 | 2021-05-11 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN113644219A (en) * | 2021-08-10 | 2021-11-12 | 京东方科技集团股份有限公司 | Display panel and display device |
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| Publication number | Publication date |
|---|---|
| CN108538885B (en) | 2021-02-19 |
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