CN108666441A - Display device - Google Patents
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- CN108666441A CN108666441A CN201810404465.1A CN201810404465A CN108666441A CN 108666441 A CN108666441 A CN 108666441A CN 201810404465 A CN201810404465 A CN 201810404465A CN 108666441 A CN108666441 A CN 108666441A
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- Prior art keywords
- display device
- angle
- underlay substrate
- organic light
- light emitting
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
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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
Abstract
The invention discloses a kind of display devices, including：Underlay substrate, Organic Light Emitting Diode, and the optical path adjusting layer in the close or side setting far from underlay substrate of Organic Light Emitting Diode.The light that organic diode is sent out after being adjusted by the adjusting unit on optical path adjusting layer can change original light propagation path, so as to adjust the angle of pixel light extraction, so that human eye light angle of each region in receiving and displaying device reaches unanimity, ensure that display device there can be preferable observation visual angle in each region, promote the visual angle consistency of display device, the color fidelity for improving display device, improves the brightness uniformity of display device, promotes the display performance of display device.
Description
Technical field
The present invention relates to display technology fields, more particularly, to a kind of display device.
Background technology
Fig. 1 is referred to, in a kind of display device that the prior art provides, as shown in Figure 1, there are multiple pixels on viewing area 01
03, viewing area 01 includes first area A1 and second area A2, the light direction L0 positioned at the pixel 031 of first area A1 and position
It is different in the light direction L0 ' angles of the pixel 032 of second area A2, light direction L0 ' and the positive visual angle institute of human eye of pixel 032
Larger in the deviation of the light direction L0 of pixel 031, then the viewing experience of pixel 032 is also poor in display device.
Fig. 2 is referred to, the prior art also provides a kind of double screen display mode, including the first display screen 04 and second is shown
Display screen curtain 05, first shows the light direction L0 of pixel 061 and going out for the pixel 062 in second display screen 05 on screen 04
Light direction L0 ' is different, then the observation experience of pixel 062 is also poor when human eye viewing display device.
Therefore, how to improve display device in the display performance of different angles of display is technical field urgent need to resolve
One of technical problem.
Invention content
In view of this, the present invention provides a kind of display devices, which is characterized in that including：Underlay substrate；It is arranged in substrate
Multiple pixels on substrate, pixel include Organic Light Emitting Diode；Optical path adjusting layer, optical path adjusting layer include that multiple adjustings are single
Member；On the direction perpendicular to underlay substrate, adjusts unit and Organic Light Emitting Diode is overlapping；Adjusting unit includes：Close to lining
The lower surface of substrate side and upper surface away from underlay substrate side；Wherein, lower surface is parallel with underlay substrate, on
The angle of surface and lower surface is δ, 90 ° of 0 °≤δ ＜, and the angle δ that at least there is an adjusting unit is not 0 °；Optical path adjusting
Layer is located at Organic Light Emitting Diode close to the side of underlay substrate, and Organic Light Emitting Diode is parallel with the upper surface of unit is adjusted；
Alternatively, optical path adjusting layer is transparent film layer and deviates from the side of underlay substrate, organic light-emitting diodes positioned at Organic Light Emitting Diode
Pipe is parallel with underlay substrate.
Compared with prior art, display device provided by the invention at least realizes following advantageous effect：
In Organic Light Emitting Diode close or side far from underlay substrate, optical path adjusting layer is set, optical path adjusting layer
Upper and lower surface has angle.The light that Organic Light Emitting Diode is sent out can change after being adjusted by the adjusting unit on optical path adjusting layer
Light propagation path originally, has adjusted the angle as light extraction so that light of the human eye in receiving and displaying device on each region
Line angle degree reaches unanimity, so that display device can have preferable observation visual angle in each region, promotes display dress
The visual angle consistency set, improves the color fidelity of display device, improves the brightness uniformity of display device, promotes display device
Display performance.
Certainly, implementing any of the products of the present invention specific needs while must not reach all the above technique effect.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Description of the drawings
It is combined in the description and the attached drawing of a part for constitution instruction shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is a kind of cross-sectional view for display device that the prior art provides；
Fig. 2 is the cross-sectional view for another display device that the prior art provides；
Fig. 3 is a kind of display device cross-sectional view provided in an embodiment of the present invention；
Fig. 4 is another display device cross-sectional view provided in an embodiment of the present invention；
Fig. 5 is another display device cross-sectional view provided in an embodiment of the present invention；
Fig. 6 is another display device cross-sectional view provided in an embodiment of the present invention；
Fig. 7 is another display device cross-sectional view provided in an embodiment of the present invention
Fig. 8 is the optical path adjusting principle schematic for the display device that Fig. 7 is provided；
Fig. 9 is the cross-sectional view of another display device provided in an embodiment of the present invention；
Figure 10 is the part section structural representation for the display device that Fig. 9 is provided；
Figure 11 is the cross-sectional view of another display device provided in an embodiment of the present invention；
Figure 12 is another display device cross-sectional view provided in an embodiment of the present invention；
Figure 13 is another display device cross-sectional view provided in an embodiment of the present invention；
Figure 14 is another display device cross-sectional view provided in an embodiment of the present invention.
Specific implementation mode
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should be noted that：Unless in addition having
Body illustrates that the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to the present invention
And its application or any restrictions that use.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
The embodiment of the present invention provides a kind of display device 10, as shown in figure 3, Fig. 3 is one kind provided in an embodiment of the present invention
Display device cross-sectional view.As shown in figure 3, display device 10 includes：Underlay substrate 11 is arranged on underlay substrate 11
Multiple pixels 12, pixel 12 include Organic Light Emitting Diode 13, optical path adjusting layer 14, optical path adjusting layer 14 include multiple adjustings
Unit 15, on the direction of underlay substrate 11, adjusting unit 15 and Organic Light Emitting Diode 13 are overlapping.Adjust unit 15
Including：Upper surface S2 close to the lower surface S1 of 11 side of underlay substrate and away from underlay substrate side, wherein lower surface
S1 is parallel with underlay substrate 11, and the angle of upper surface S2 and lower surface S1 are δ, 90 ° of 0 °≤δ ＜, and at least there is an adjusting
The angle δ of unit 15 is not 0 °.The light extraction that optical path adjusting layer 14 can change pixel 12 is reversed, and specific set-up mode has two
Kind.
Specifically, a kind of specific set-up mode of optical path adjusting layer 14 is with continued reference to FIG. 3, optical path adjusting layer 14 is transparent
Film layer and the side for deviating from underlay substrate 11 positioned at Organic Light Emitting Diode 13, Organic Light Emitting Diode 13 and underlay substrate 11 are flat
Row.It includes an organic light-emitting diodes to have multiple pixels 12, each pixel 12 in Fig. 3 on the underlay substrate 11 of display device 10
Pipe 13.Optionally, as shown in figure 3, being additionally provided with pixel definition portion 16 between two light emitting diodes 13.Fig. 3 is referred to, organic
Transparent optical path adjusting layer 14 is set on 13 place layer of light emitting diode, and each Organic Light Emitting Diode 13 corresponds to one
Adjust unit 15.Due to adjusting the upper surface S2 and lower surface S1 of unit 15 with angle, that is to say, that optical path adjusting layer 14 is
(as shown in Figure 3) with fluctuating or bulge-structure, the light that Organic Light Emitting Diode 13 is sent out pass through transparent adjusting unit
15 can reflect, i.e., the light that Organic Light Emitting Diode 13 is sent out after the adjusting unit 15 on optical path adjusting layer 14 by that can change
Light propagation path originally, therefore adjust the angle that unit 15 changes 12 light extraction of pixel so that human eye is receiving display dress
The light angle that the pixel 12 in 10 on each region is sent out is set to reach unanimity so that display device 10 each region all
There can be preferable observation visual angle, promote the visual angle consistency of display device 10, improve the color fidelity of display device 10,
The brightness uniformity of display device 10 is improved, the display performance of display device 10 is promoted.
Alternatively, the specific set-up mode of the another kind of optical path adjusting layer 14 is referring to FIG. 4, Fig. 4 is offer of the embodiment of the present invention
Another display device cross-sectional view.Optical path adjusting layer 14 is located at Organic Light Emitting Diode 13 close to underlay substrate
11 side, Organic Light Emitting Diode 13 are parallel with the upper surface S2 of unit 15 is adjusted.
Fig. 4 is referred to, before the optical path adjusting layer 14 that the setting embodiment of the present invention is provided, the skill of prior art offer
In art scheme, Organic Light Emitting Diode 13 ' is parallel to the setting of underlay substrate 11, the light that Organic Light Emitting Diode 13 ' is sent out
L ' is perpendicular to underlay substrate 11, and when human eye sight direction and 11 out of plumb of underlay substrate, then Organic Light Emitting Diode 13 ' is sent out
Radiation direction L ' be not human eye sight direction, therefore the visual angle at this is not optimal viewing angle.The embodiment of the present invention is by light path tune
Ganglionic layer 14 is arranged in Organic Light Emitting Diode 13 close to the side of underlay substrate 14, then Organic Light Emitting Diode 13 and underlay substrate
There is angle, the angle to be equal to the angle for adjusting unit 15, the light L that Organic Light Emitting Diode 13 is sent out is still vertical between 11
In Organic Light Emitting Diode 13 but be not orthogonal to underlay substrate 11, that is, after optical path adjusting layer 14 is set, Organic Light Emitting Diode 13
The light sent out is offset to L.That is, the light of Organic Light Emitting Diode 13 passes through the adjusting unit 15 on optical path adjusting layer 14
Original light propagation path is changed after adjusting, is adjusted the angle that unit 15 has adjusted 13 light extraction of Organic Light Emitting Diode, is made
It obtains the light angle that pixel 12 of the human eye in receiving and displaying device 10 on each region is sent out to reach unanimity, to display device
10 can have preferable observation visual angle in each region, promote the visual angle consistency of display device 10, improve display device
10 color fidelity improves the brightness uniformity of display device 10, promotes the display performance of display device 10.
Optionally, as shown in figure 5, Fig. 5 is the cross-section structure signal of another display device provided in an embodiment of the present invention
Figure.Display device 10 includes first area B1, in the B1 of first area, adjusts the angle δ of unit 151(not shown) is 0 °.
As, it is not that region all in display device 10 is required for being adjusted, such as there is human eye to face in display device 10 and regard
There is no need to adjust in the region at angle.
Optionally, as shown in figure 5, display device 10 includes second area B2 and third region B3, third region B3 is located at
Sides of the second area B2 far from first area B1, in second area B2, the angle for adjusting unit 15 is δ2, 0 ° of ＜ δ290 ° of ＜,
In the B3 of third region, the angle for adjusting unit 15 is δ3, 0 ° of ＜ δ390 ° of ＜, also, δ2＜ δ3。
Display device provided in this embodiment can be bent in the specific use process.When display device is bent, first
The generally curved degree very littles of region B1 or without bending, first area B1 also be typically with human eye front viewing angle region.
The second area B2 and third region B3 of display device all have and are largely bent, also, remoter apart from first area B1,
Bending degree is bigger.That is, in two different region B2, B3, closer to region (the present embodiment of first area B1
It is B2 in Fig. 3), the visual angle of pixel 12 is closer to the visual angle that human eye is faced, therefore the angle for adjusting unit 15 is smaller, further away from the
The region (being B3 in the present embodiment Fig. 3) of one region B1, the visual angle of pixel 12 adjusts unit 15 further away from the visual angle that human eye is faced
Angle it is bigger.The angle for adjusting unit 15 is bigger, then the change of the angle to emit beam to pixel 12 is also bigger so that different
The light angle that the pixel 12 in region is sent out reaches unanimity, so that display device 10 can have preferably in each region
Observation visual angle, promoted display device 10 display performance.
It should be noted that Fig. 5 it is merely exemplary illustrate second area B2 and third region B3 first area B1's
Right side, during practical application, specific position of the present invention to second area B2, third region B3 relative to first area B1
It sets and is not specifically limited.
Optionally, as shown in fig. 6, Fig. 6 is the cross-section structure signal of another display device provided in an embodiment of the present invention
Figure.Display device 10 includes the fourth region B4, and any two positioned at the fourth region B4 is adjusted in unit 15, apart from first area
The angle of the larger adjusting unit 15 of distance of B1 is δx, the angle of the smaller adjusting unit 15 of distance apart from first area B1
For δy, δy＜ δx。
Display device provided in this embodiment can be bent in the specific use process.When display device is bent, first
The generally curved degree very littles of region B1 or without bending, first area B1 also be typically with human eye front viewing angle region.
In the fourth region B4, apart from first area, B1 is remoter, and bending degree is bigger, correspondingly, multiple pixels 12 in the fourth region B4
The corresponding angle for adjusting unit 15 can gradually change.That is, in the same region B4, closer to first area B1
Pixel 12, visual angle is closer to the visual angle that human eye is faced, therefore the angle for adjusting unit 15 is smaller, further away from first area B1
Area pixel 12, visual angle is further away from the visual angle that human eye is faced, and the angle for adjusting unit 15 is bigger, i.e., in the same region B4
The middle angle for adjusting unit 15 gradually changes, specifically, from close to the side of first area B1, adjusts the folder of unit 15
Angle becomes larger.The angle for adjusting unit 15 becomes larger, then the change of the angle to emit beam to pixel 12 also becomes larger,
So that the light angle that the pixel 12 of the same area is sent out reaches unanimity, so that each picture of the display device 10 in the region
Element 12 can have preferable observation visual angle, promote the display performance of display device 10.
It should be noted that Fig. 6 it is merely exemplary illustrate that the fourth region B4 on the right side of first area B1, is actually being answered
During, the present invention is not specifically limited the fourth region B4 relative to the specific location of first area B1.
Optionally, Fig. 7, Fig. 8 are referred to, Fig. 7 is the cross-section structure of another display device provided in an embodiment of the present invention
Schematic diagram, Fig. 8 are the optical path adjusting principle schematics for the display device that Fig. 7 is provided.As shown in Figure 7, Figure 8, optical path adjusting layer 14
Deviating from the side of underlay substrate 11 for transparent film layer and positioned at Organic Light Emitting Diode 13, adjusting unit 15 is prism structures,
The incidence angle that Organic Light Emitting Diode 13 exposes to prism is γ, the angle of emergence is beta, gamma=δ, and the refractive index of optical path adjusting layer is
N, n=sin γ/sin β.
Specifically, referring to Fig. 7, Fig. 8, optical path adjusting layer 14 is located at Organic Light Emitting Diode 13 away from underlay substrate 11
Side, adjusting unit 15 are prism structures, and the incidence angle that Organic Light Emitting Diode 13 exposes to prism 15 is γ, the angle of emergence
Refractive index for beta, gamma=δ, optical path adjusting layer 14 is n, n=sin γ/sin β.As, as shown in fig. 7, in organic light-emitting diodes
One layer of regulating course 14 is set on pipe 13, and regulating course 14 includes multiple prisms 15, as shown in figure 8, Organic Light Emitting Diode 13 is sent out
The light L gone out is reflected by prism 15, and the incidence angle that Organic Light Emitting Diode 13 exposes to prism 15 is γ, is emitted
Angle is β, changes Organic Light Emitting Diode 13 and emits beam the direction of L.The angle that prism 15 is arranged is γ=δ so that as
Arbitrary region of the element 12 in display device 10 can have preferable observation visual angle, to promote the display of display device 10
Performance.
Optionally, Fig. 7, Fig. 8 are referred to, display device 10 includes first area B1, in the B1 of first area, organic light emission two
Pole pipe 13 is parallel with 11 place plane of underlay substrate, adjusts the angle δ of unit 151(not shown) is 0 °, display device 10
Including the first bending region B5, first bends in the B5 of region, the underlay substrate in Organic Light Emitting Diode 13 and first area B1
The angle of 11 place planes is α, wherein 0 ＜ γ≤alpha+beta.
Specifically, refer to Fig. 7, Fig. 8, display device 10 includes first area B1, in the B1 of first area, organic light emission two
Pole pipe 13 is parallel with 11 place plane of underlay substrate, the angle δ of prism 151(not shown) is 0 °, and display device 10 is wrapped
The first bending region B5 is included, first bends in the B5 of region, the underlay substrate 11 in Organic Light Emitting Diode 13 and first area B1
The angle of place plane is α, wherein 0 ＜ γ≤alpha+beta.As, as shown in figure 8, the light L that Organic Light Emitting Diode 13 is sent out
It is reflected by prism 15, the incidence angle that Organic Light Emitting Diode 13 exposes to prism 15 is γ, angle of emergence β, organic
The angle of 11 place plane of underlay substrate in light emitting diode 13 and first area B1 is α, and the angle of setting prism 15 is δ
=γ, the value range that incidence angle is γ are 0 ＜ γ≤alpha+beta, then the angle δ value ranges of prism 15 are also 0 ＜ δ≤alpha+beta,
It changes Organic Light Emitting Diode 13 to emit beam the direction of L so that first bending region of the pixel 12 in display device 10
There can be preferable observation visual angle in B5, to promote the display performance of display device 10.
Optionally, as shown in figure 5, display device 10 includes encapsulated layer 17, encapsulated layer 17 covers multiple organic light-emitting diodes
Pipe 13, optical path adjusting layer 14 is transparent film layer and deviates from the side of underlay substrate 11 positioned at Organic Light Emitting Diode 13, and light path
Regulating course 14 is located at the side that encapsulated layer 17 deviates from underlay substrate 11.
Specifically, encapsulated layer 17 is needed using the display device 10 that Organic Light Emitting Diode 13 makes, because of organic material
Oxygen afraid of water.The material of encapsulated layer 17 can be metal, glass, thin-film package (TFE) and mixture etc., and the present invention does not make this to have
Body limits.
Optionally, Fig. 9, Figure 10 are referred to, Fig. 9 is the cross-section structure of another display device provided in an embodiment of the present invention
Schematic diagram, Figure 10 is the part section structural representation for the display device that Fig. 9 is provided, specifically, Figure 10 shows that Fig. 9 is provided
Display device 10 second bending region C amplification profile structural schematic diagram.Display device 10 include first area B1, first
In the B1 of region, Organic Light Emitting Diode 13 is parallel with 11 place plane of underlay substrate, adjusts the angle δ of unit 151(do not show in figure
Go out) it is 0 °, display device 10 includes the second bending region C, as shown in Figure 9, Figure 10, and in the second bending region C, organic light emission two
The angle that pole pipe 13 and second bends the 11 place plane of underlay substrate in the C of region is δf, second bends the substrate base in the C of region
The angle of underlay substrate 11 in plate 11 and first area B1 is αf, wherein δf≤αf。
Specifically, Fig. 9, Figure 10 are referred to, 11 institute of Organic Light Emitting Diode 13 and underlay substrate in the second bending region C
It is δ in the angle of planef, second bends the angle of the underlay substrate 11 in underlay substrate 11 and first area B1 in the C of region
For αf, then second the angle satisfaction that region C adjusts unit 15 is bent：δf≤αf.As, as shown in Figure 10, the prior art provides
In technical solution, Organic Light Emitting Diode 13 ' is parallel to the setting of underlay substrate 11, the light that Organic Light Emitting Diode 13 ' is sent out
L ' is perpendicular to Organic Light Emitting Diode 13 ', i.e., perpendicular to underlay substrate 11.And when display device 10 has the second bending region C
When, human eye sight direction remains perpendicular to plane where the B1 of first area, then the lining in human eye sight direction and the second bending region C
11 out of plumb of substrate, therefore the radiation direction L ' that Organic Light Emitting Diode 13 ' is sent out is not human eye sight direction, i.e., at this
Visual angle is not optimal viewing angle.Optical path adjusting layer 14 is arranged in Organic Light Emitting Diode 13 close to underlay substrate the embodiment of the present invention
Then there is between Organic Light Emitting Diode 13 and underlay substrate 11 angle, the angle to be equal to the folder for adjusting unit 15 for 14 side
Angle δf, the light L that Organic Light Emitting Diode 13 is sent out remains perpendicular to Organic Light Emitting Diode 13, but is not orthogonal to the second bending
Underlay substrate 11 at the C of region, light L planes where the B1 of first area on underlay substrate 11, that is, be arranged optical path adjusting
After layer 14, the light that Organic Light Emitting Diode 13 is sent out is offset to L, adjusts unit 15 and changes original Organic Light Emitting Diode
13 ' the directions for emitting beam L ' so that the light L after change is consistent with human eye sight direction.To which pixel 12 is in display device
There can be the front viewing angle as the B1 of first area at the second bending region C on 10, promote the display of display device 10
Performance.
Optionally, Figure 11 is referred to, Figure 11 is another display device cross-section structure signal provided in an embodiment of the present invention
Figure.As shown in figure 11, display device 10 further includes drive circuit layer 18 and planarization layer 19, and drive circuit layer 18 includes multiple thin
Film transistor 20, planarization layer 19 are located at side of the drive circuit layer 18 far from underlay substrate 11, multiple Organic Light Emitting Diodes
13 are located at side of the planarization layer 19 far from underlay substrate 11, and planarization layer 19 is multiplexed with optical path adjusting layer 14.
Specifically, setting planarization layer 19 to the shape with fluctuating or bulge-structure so that be set to planarization
Organic Light Emitting Diode 13 on layer 19 can be arranged with the shape of planarization layer 19, change Organic Light Emitting Diode 13 and send out
While the angle of light, moreover it is possible to reduce the level of whole display device 10 so that display device 10 is more lightening, improves display
The display performance of device 10.
Optionally, it is another display device cross-section structure provided in an embodiment of the present invention to refer to Figure 11-Figure 12, Figure 12
Schematic diagram.As shown in Figure 11-Figure 12, the shape of planarization layer 19 can be zigzag or wavy.It should be noted that this
Inventive embodiments herein only with zigzag and it is wavy illustrate, other can also be used to have and risen and fallen or bulge-structure
Shape, the present invention are not specifically limited this.
Optionally, continuing with referring to Figure 11, Organic Light Emitting Diode 13 includes anode 131, cathode 132 and is located at positive
Luminescent layer 133 between pole 131 and cathode 132, anode 131 are located at the side surface that planarization layer 19 deviates from underlay substrate 11.
Specifically, continuing with referring to Figure 11, anode 131 is arranged on planarization layer 19, i.e. Organic Light Emitting Diode 13
The angle of anode 131 and underlay substrate 11 is the angle δ of the upper surface S2 and lower surface S1 that adjust unit 15.
Optionally, Figure 13 is referred to, Figure 13 is another display device cross-section structure signal provided in an embodiment of the present invention
Figure.Display device 10 includes bent area B, and the angle δ for being located at the adjusting unit 15 in the B of bent area is not 0 °.
Specifically, display device 10 is curved-surface display device, as shown in figure 13, with bent area B, in the B of bent area
Display device can be bent, bend, and be equipped in the B of bent area and adjust unit 15, and the angle for adjusting unit 15 is not 0 °, for adjusting
Save the light direction of Organic Light Emitting Diode 13 so that display device 10 there can be good visual angle in any region, carry
The display performance of high display device 10.
It should be noted that only with the bent area B of the display device of offer 10 using shown in Figure 13 in the embodiment of the present invention
Set-up mode carry out visual angle be adjusted to exemplary illustration, can also use the above embodiment of the present invention in any one mode into
Row visual angle adjusts, and details are not described herein.
Optionally, Figure 14 is referred to, Figure 14 is another display device cross-section structure signal provided in an embodiment of the present invention
Figure.In conjunction with reference to figure 14, Fig. 3, any Organic Light Emitting Diode 13 is overlapped with unit 15 is adjusted, and any folder for adjusting unit 15
Angle δ is not 0 °.
Specifically, the display device 10 shown in the present embodiment has two display screens, the first display screen 21 and second aobvious
There is angle, the light direction L21 of the pixel 12 on the first display screen 21 to have human eye front viewing angle, then between display screen curtain 22
The light direction L22 of pixel 12 in second display screen 22 is not the positive apparent direction of human eye, therefore, in order to improve second display screen
The display effect of curtain 22, needs the light direction L22 to pixel 12 in second display screen 22 to be adjusted.In conjunction with reference to figure 3,
Optical path adjusting layer 14, Organic Light Emitting Diode 13 and the optical path adjusting layer 14 of any pixel 12 are set in second display screen 22
On adjusting unit overlap mutually, and since 22 entire screen of second display screen is not human eye front viewing angle, second
All pixels 12 on display screen 22 are required for adjusting, and therefore, any angle δ for adjusting unit 15 is not 0 °.Adjust unit
15 adjust the light direction L22 of pixel 12 so that second display screen 22 can also have good visual angle, improve display device
10 whole display performance.
It should be noted that the second display screen 22 for the display device that Figure 14 is provided in the embodiment of the present invention is only to use
Set-up mode shown in Fig. 3 carries out visual angle and is adjusted to exemplary illustration, can also use any one in the above embodiment of the present invention
Kind mode carries out visual angle adjustment, and details are not described herein.
By above-described embodiment it is found that display device provided by the invention, at least realizes following advantageous effect：
In Organic Light Emitting Diode close or side far from underlay substrate, optical path adjusting layer is set, optical path adjusting layer
Upper and lower surface has angle.The light that Organic Light Emitting Diode is sent out can change after being adjusted by the adjusting unit on optical path adjusting layer
Light propagation path originally, has adjusted the angle as light extraction so that picture of the human eye in receiving and displaying device on each region
The light angle that element is sent out reaches unanimity, so that display device can have preferable observation visual angle in each region,
The visual angle consistency for promoting display device, improves the color fidelity of display device, improves the brightness uniformity of display device, carry
Rise the display performance of display device.
Although some specific embodiments of the present invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to illustrating, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above example.This hair
Bright range is defined by the following claims.
Claims (12)
1. a kind of display device, which is characterized in that including：
Underlay substrate；
The multiple pixels being arranged on the underlay substrate, the pixel include Organic Light Emitting Diode；
Optical path adjusting layer, the optical path adjusting layer include multiple adjusting units；On the direction of the underlay substrate, institute
It states adjusting unit and the Organic Light Emitting Diode is overlapping；
The adjusting unit includes：Close to the lower surface of the underlay substrate side and away from the underlay substrate side
Upper surface；Wherein, the lower surface is parallel with the underlay substrate, and the angle of the upper surface and the lower surface is δ, 0 °≤
90 ° of δ ＜, and at least there is an angle δ for adjusting unit is not 0 °；
The optical path adjusting layer is located at the Organic Light Emitting Diode close to the side of the underlay substrate, the organic light emission two
Pole pipe is parallel with the adjusting upper surface of unit；Alternatively, the optical path adjusting layer is transparent film layer and is located at organic hair
Optical diode deviates from the side of the underlay substrate, and the Organic Light Emitting Diode is parallel with the underlay substrate.
2. display device according to claim 1, which is characterized in that
The display device includes first area；
In the first area, the angle δ for adjusting unit1It is 0 °.
3. display device according to claim 2, which is characterized in that
The display device includes second area and third region, and the third region is located at the second area far from described
The side in one region；
In the second area, the angle for adjusting unit is δ2, 0 ° of ＜ δ290 ° of ＜；
In the third region, the angle for adjusting unit is δ3, 0 ° of ＜ δ390 ° of ＜, also, δ2＜ δ3。
4. display device according to claim 2, which is characterized in that
The display device includes the fourth region；
It is adjusted in unit described in any two positioned at the fourth region, described in distance apart from the first area is larger
The angle for adjusting unit is δx, the angle of the smaller adjusting unit of distance apart from the first area is δy, δy＜ δx。
5. display device according to claim 1, which is characterized in that
The optical path adjusting layer is transparent film layer and deviates from the side of the underlay substrate, institute positioned at the Organic Light Emitting Diode
It is prism structures to state and adjust unit；
The incidence angle that the Organic Light Emitting Diode exposes to Mitsubishi's mirror is γ, the angle of emergence is beta, gamma=δ；
The refractive index of the optical path adjusting layer is n, n=sin γ/sin β.
6. display device according to claim 5, which is characterized in that
The display device includes first area, in the first area, the Organic Light Emitting Diode and the underlay substrate
Place plane is parallel, the angle δ for adjusting unit1It is 0 °；
The display device includes the first bending region, in first bending region, the Organic Light Emitting Diode and described
The angle of plane is α where underlay substrate in first area, wherein 0 ＜ γ≤alpha+beta.
7. display device according to claim 1, which is characterized in that
The display device includes encapsulated layer, and the encapsulated layer covers the multiple Organic Light Emitting Diode；
The optical path adjusting layer deviates from the side of the underlay substrate for transparent film layer and positioned at the Organic Light Emitting Diode, and
The optical path adjusting layer is located at the side that the encapsulated layer deviates from the underlay substrate.
8. display device according to claim 1, which is characterized in that
The display device includes first area, in the first area, the Organic Light Emitting Diode and the underlay substrate
Place plane is parallel, the angle δ for adjusting unit1It is 0 °；
The display device includes the second bending region, in second bending region, the Organic Light Emitting Diode and described
The angle of plane is δ where bending the underlay substrate in regionf, the underlay substrate and described in second bending region
The angle of the underlay substrate in first area is αf, wherein δf≤αf。
9. display device according to claim 1, which is characterized in that
The display device further includes drive circuit layer and planarization layer, and the drive circuit layer includes multiple thin film transistor (TFT)s；
The planarization layer is located at side of the drive circuit layer far from the underlay substrate, the multiple organic light-emitting diodes
Pipe is located at side of the planarization layer far from the underlay substrate；
The planarization layer is multiplexed with the optical path adjusting layer.
10. display device according to claim 9, which is characterized in that
The Organic Light Emitting Diode includes anode, cathode and the luminescent layer between the anode and the cathode, institute
It states anode and is located at the side surface that the planarization layer deviates from the underlay substrate.
11. display device according to claim 1, which is characterized in that
The display device includes bent area, and the angle δ for being located at the adjusting unit in the bent area is not 0 °.
12. display device according to claim 1, which is characterized in that
Any Organic Light Emitting Diode is overlapping with the adjusting unit, and any angle δ for adjusting unit is not 0 °.
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