CN112750963A - Organic light emitting display panel and display device - Google Patents
Organic light emitting display panel and display device Download PDFInfo
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- CN112750963A CN112750963A CN202110003855.XA CN202110003855A CN112750963A CN 112750963 A CN112750963 A CN 112750963A CN 202110003855 A CN202110003855 A CN 202110003855A CN 112750963 A CN112750963 A CN 112750963A
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- H10K50/00—Organic light-emitting devices
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- H—ELECTRICITY
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- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
- H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
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- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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- H10K59/12—Active-matrix OLED [AMOLED] displays
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Abstract
The invention discloses an organic light emitting display panel and a display device. The organic light emitting display panel includes: an array substrate; the light emitting function layer is positioned on one side of the array substrate and comprises a plurality of organic light emitting display devices; the color resistance layer is positioned on one side, far away from the array substrate, of the light-emitting functional layer and comprises a plurality of color resistance units, and each color resistance unit comprises a first color resistance unit and a second color resistance unit; the first color resistance unit is at least provided with a first through hole, and the first color resistance unit is a blue color resistance. According to the invention, the thickness of the organic light-emitting display panel can be reduced while antireflection is carried out, and the brightness of the organic light-emitting display panel is improved.
Description
The application is filed as a divisional application with application date of 2018, 8, month and 30 and application number of 201811000001.0, and is named as an organic light-emitting display panel and a display device.
Technical Field
The present invention relates to the field of display technologies, and in particular, to an organic light emitting display panel and a display device.
Background
Organic Light Emitting Display panels, OLEDs, i.e., Organic Light Emitting Diodes (OLEDs), also known as Organic electroluminescent displays (OELDs). Such display panels are widely used in various display devices such as mobile phones and flat panels because of their characteristics of being light, thin, and power saving.
Unlike conventional liquid crystal display panels, organic light emitting display panels use very thin organic material coatings and substrates without a backlight, and these organic materials emit light when current flows through them. And the organic light emitting display panel can be made lighter and thinner, has a larger visual angle, and can remarkably save electric energy.
Wherein, along with the continuous diversification of use scene, organic light emitting display panel adopts flexible material to form flexible substrate for organic light emitting display panel is flexible collapsible, to flexible organic light emitting display panel, when further frivolous in order to promote its folding performance, how to guarantee flexible organic light emitting display panel's display effect simultaneously, becomes present technological problem.
Therefore, it is an object of the present invention to provide a display device and an organic light emitting display panel with good flexible folding performance and good display effect.
Disclosure of Invention
In view of the foregoing, the present invention provides an organic light emitting display panel and a display device, which can reduce the thickness of the organic light emitting display panel while resisting reflection, and improve the brightness of the organic light emitting display panel.
In one aspect, the present invention provides an organic light emitting display panel.
The organic light emitting display panel includes: an array substrate; the light emitting function layer is positioned on one side of the array substrate and comprises a plurality of organic light emitting display devices; the color resistance layer is positioned on one side of the light-emitting functional layer, which is far away from the array substrate; wherein, the color resistance layer is provided with a plurality of through holes.
In another aspect, the present invention provides a display device.
The display device comprises any one organic light-emitting display panel provided by the invention.
Compared with the prior art, the organic light-emitting display panel and the display device provided by the invention at least realize the following beneficial effects:
organic light emitting display panel realizes the antireflection through setting up the colour resistance layer, for carry out the antireflection through the circular polaroid, the thickness on colour resistance layer is less, can reduce organic light emitting display panel thickness in the antireflection, to flexible display panel, will be favorable to the buckling of flexible organic light emitting display panel, and simultaneously, set up the through-hole on the colour resistance layer, the light part of luminous functional layer through the outgoing of through-hole department from this, do not pass through the colour resistance layer, make the luminance loss of this part light less, therefore, from organic light emitting display panel wholly, can increase the light yield of luminous functional layer light through setting up the through-hole, that is, the luminous intensity, promote the luminance of whole screen, reduce organic light emitting display panel's consumption, promote organic light emitting display panel's display effect.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic diagram of a film structure of an organic light emitting display panel according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a brightness contrast of a red sub-pixel of an OLED panel according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating brightness contrast of a green sub-pixel of an OLED panel according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating a luminance contrast of a blue sub-pixel of an OLED panel according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a film structure of another organic light emitting display panel according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a film structure of another organic light emitting display panel according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a film structure of another organic light emitting display panel according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a film structure of another organic light emitting display panel according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a film structure of another organic light emitting display panel according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a film structure of another organic light emitting display panel according to an embodiment of the present invention;
fig. 11 is a schematic top view illustrating an organic light emitting display panel according to an embodiment of the present invention;
fig. 12 is a schematic diagram of a display device according to an embodiment of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In order to improve the flexible folding performance and the display effect of the organic light emitting display panel, the inventors have conducted the following research on the organic light emitting display panel in the prior art:
the organic light emitting display panel comprises an array substrate and an organic light emitting display device arranged on the array substrate, wherein the array substrate comprises a pixel circuit for controlling the organic light emitting display device to emit light, the organic light emitting display device comprises a cathode, an anode and an organic light emitting material positioned between the cathode and the anode, wherein some film layers of the pixel circuit and the cathode and/or the anode of the organic light emitting display device are formed by materials with reflection characteristics such as metal, and after external light enters the organic light emitting display panel, part of the light is reflected back to enter human eyes to influence the use of the organic light emitting display panel.
In order to reduce the reflected light, in the prior art, a circular polarizer is disposed on the light emitting side of the organic light emitting display panel, and the external light entering the organic light emitting display panel is reduced through the circular polarizer, so as to achieve the purpose of reducing the reflected light. However, the thickness of the circular polarizer is usually about 150um, which increases the thickness of the whole organic light emitting display panel and is not beneficial to bending the flexible organic light emitting display panel.
In order to reduce the thickness of the organic light emitting display panel and facilitate the folding of the flexible organic light emitting display panel, the inventor thinks of using a color resistance layer to replace a circular polarizer, fig. 1 is a schematic diagram of a film structure of an organic light emitting display panel according to an embodiment of the present invention, and as shown in fig. 1, the organic light emitting display panel includes an array substrate 10, a light emitting functional layer 20, an encapsulation layer 30, and a color resistance layer 40.
The light emitting function layer 20 is disposed on one side of the array substrate 10 and includes a red organic light emitting display device 21, a green organic light emitting display device 22, and a blue organic light emitting display device 23.
The encapsulating layer 30 is disposed on a side of the light emitting function layer 20 away from the array substrate 10, and is used for encapsulating the light emitting function layer 20.
The color resistance layer 40 is disposed on a side of the encapsulation layer 30 away from the array substrate 10, the color resistance layer 40 includes a red color resistance unit 41, a green color resistance unit 42, a blue color resistance unit 43, and a black matrix 44 for spacing the red color resistance unit 41, the green color resistance unit 42, and the blue color resistance unit 43, the organic light emitting display device 21 emitting red light corresponds to the red color resistance unit 41, the organic light emitting display device 22 emitting green light corresponds to the green color resistance unit 42, and the organic light emitting display device 23 emitting blue light corresponds to the blue color resistance unit 43.
Through setting up the colour drag layer 40, can absorb the external light that gets into organic light emitting display panel to reduce external light and to organic light emitting display panel's influence after organic light emitting display panel reflects, in addition, use the circular polaroid relatively, can attenuate organic light emitting display panel thickness, do benefit to the buckling of flexible organic light emitting display panel, can also increase the luminance of transmissivity and promotion whole screen.
However, the inventors further research and find that, after light generated by the organic light emitting display device is emitted through the color resist layer 40, the brightness is estimated to be reduced to about 80% of the original brightness, specifically, fig. 2 is a schematic diagram of the brightness contrast of the red sub-pixel of the organic light emitting display panel provided in the embodiment of the present invention, as shown in fig. 2, as can be seen by comparing the brightness of the red organic light emitting display device 21 (shown by a solid line in fig. 2) with the brightness of the red organic light emitting display device 21 after passing through the color resist layer 40 (shown by a required line in fig. 2), the brightness is reduced to about 84%; fig. 3 is a schematic diagram illustrating a comparison of the luminance of the green sub-pixel of the organic light emitting display panel according to the embodiment of the present invention, as shown in fig. 3, as can be seen from the comparison between the luminance of the green organic light emitting display device 22 (shown by a solid line in fig. 3) and the luminance of the green organic light emitting display device 22 after passing through the color resist layer 40 (shown by a required line in fig. 3), the luminance is reduced to about 82%; fig. 4 is a schematic diagram illustrating the comparison of the luminance of the blue sub-pixel of the organic light emitting display panel according to the embodiment of the present invention, as shown in fig. 4, the luminance of the blue organic light emitting display device 23 (shown by a solid line in fig. 4) is reduced to about 75% as can be seen by comparing the luminance of the blue organic light emitting display device 23 after passing through the color resist layer 40 (shown by a required line in fig. 4).
Based on above technical problem, this application provides an organic light emitting display panel and display device including this organic light emitting display panel with the color resistance layer of specific structure, through setting up the color resistance layer of special structure, can reduce reflection light, attenuate the thickness of organic light emitting display panel, increase the transmissivity simultaneously, promote the luminance of whole screen and increase out the light volume, reduce organic light emitting display panel's consumption, promote organic light emitting display panel's display effect.
As for the organic light emitting display panel and the display device proposed by the present application, detailed description will be made below.
Fig. 5 is a schematic view of a film structure of another organic light emitting display panel according to an embodiment of the present invention, and optionally, in an embodiment, as shown in fig. 5, the organic light emitting display panel includes an array substrate 10, a light emitting functional layer 20, an encapsulation layer 30, and a color resistance layer 40.
Where the array substrate 10 includes a base and a pixel circuit on the base, when the organic light emitting display panel is a foldable flexible display panel, the base is formed of any suitable insulating material having flexibility, for example, the flexible base may be formed of a polymer material such as Polyimide (PI), Polycarbonate (PC), Polyethersulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), Polyarylate (PAR), or glass Fiber Reinforced Plastic (FRP). The pixel circuit is used for receiving control signals of the integrated circuit chip and the like and controlling the organic light-emitting display device to emit light.
The light emitting function layer 20 is disposed on one side of the array substrate 10, and the light emitting function layer 20 includes a plurality of organic light emitting display devices 21. Specifically, the organic light emitting display device includes a cathode, an anode, and an organic light emitting material between the cathode and the anode, and a patterned anode is disposed on the array substrate 10 and electrically connected to a pixel circuit within the array substrate 10. The organic light emitting material is formed on the anode by an evaporation process, and then a common cathode is arranged on one side of the organic light emitting material far away from the anode. When a voltage is applied between the anode and the cathode, the organic light emitting material emits visible light, and the color of the emitted visible light may be different.
The encapsulation layer 30 is located on a side of the light emitting function layer 20 away from the array substrate 10, and serves to encapsulate the organic light emitting display device 21 to protect the organic light emitting display device 21 and other film layers from external moisture, oxygen, and the like. For a flexible organic light emitting display panel, the encapsulation layer 30 may be a thin film encapsulation layer including inorganic layers and organic layers, and the inorganic layers and the organic layers are stacked alternately to realize encapsulation.
The color resistance layer 40 is located on one side of the packaging layer 30 far away from the array substrate 10, and after the organic light-emitting display panel adopts the color resistance layer 40, ambient light passes through the color resistance layer 40 and is absorbed by the color resistance layer 40, so that the color resistance layer 40 can reduce the interference of the ambient light on the organic light-emitting display panel to a certain extent, and the anti-reflection effect is achieved.
Wherein, when the color resistance layer 40 is disposed, it can be formed on the encapsulation layer 30 by using a coating method, in this case, the thickness of the color resistance layer 40 is less than 5 um; alternatively, the color resist layer 40 may be formed on a transparent substrate, such as a flexible substrate, and then the substrate with the color resist layer 40 is attached to the packaging layer 30 by an adhesive, in which case, the total thickness of the substrate with the color resist layer 40 and the adhesive is usually less than 50 um. Therefore, compared with a circular polarizer, the thickness of the color resistance layer 40 is smaller than that of the polarizer, so that the technical effect of reducing the thickness of the organic light-emitting display panel while resisting reflection is achieved, and for a flexible display panel, the flexible display panel is beneficial to bending of the flexible organic light-emitting display panel.
The color resistance layer 40 is provided with a plurality of through holes H, the through holes H penetrate through the color resistance layer 40 in the thickness direction z of the organic light emitting display panel and can be arranged at any position of the color resistance layer 40, the cross sections of the through holes H can be in any regular or irregular shape, and all the through holes H can be arranged on the color resistance layer 40 in any regular or irregular form.
Adopt the organic light emitting display panel that this embodiment provided, realize the antireflection through setting up the color resistance layer, for carrying out the antireflection through the circular polaroid, the thickness on color resistance layer is less, can reduce organic light emitting display panel thickness in the antireflection, to flexible display panel, will be favorable to the buckling of flexible organic light emitting display panel, and simultaneously, set up the through-hole on the color resistance layer, the light part of luminous functional layer through the outgoing of through-hole department from this, do not pass through the color resistance layer, make the luminance loss of this part light less, therefore, from organic light emitting display panel wholly, can increase the light yield of luminous functional layer light through setting up the through-hole, also be the luminous intensity, promote the luminance of whole screen, reduce organic light emitting display panel's consumption, promote organic light emitting display panel's display effect.
Fig. 6 is a schematic diagram of a film structure of another organic light emitting display panel according to an embodiment of the present invention, optionally, in one embodiment, as shown in fig. 6, the color-resist layer 40 of the organic light emitting display panel includes a plurality of color-resist units 41 and black matrixes 42 disposed between the color-resist units 41, each color-resist unit 41 corresponds to one or more organic light emitting display devices 21, the color of the color-resist unit 41 is the same as the color of its corresponding organic light emitting display device 21, the orthographic projection of the black matrixes 42 on the array substrate 10 and the orthographic projection of the organic light emitting display devices 21 on the array substrate do not overlap, by providing the black matrix 42, on one hand, external light can be blocked from entering the organic light emitting display panel to generate reflection, and on the other hand, the generation of mixed light by sub-pixels of different colors under a large viewing angle can be reduced, wherein the through hole H includes a first through hole H1 and is disposed on the color resistance unit 41.
Fig. 7 is a schematic diagram of a film structure of another organic light emitting display panel according to an embodiment of the present invention, and optionally, in another embodiment, as shown in fig. 7, a difference from the embodiment shown in fig. 6 is that in the organic light emitting display panel provided in this embodiment, the through holes H on the color resist layer 40 include second through holes H2, and the second through holes H2 are disposed on the black matrix 42.
Fig. 8 is a schematic diagram of a film structure of another organic light emitting display panel according to an embodiment of the present invention, and optionally, as shown in fig. 8, a difference between the embodiment of the present invention and the embodiment of fig. 6 is that in the organic light emitting display panel according to this embodiment, the through holes H on the color barrier layer 40 include a second through hole H2 of the first through hole H1, the first through hole H1 is disposed on the color barrier unit 41, and the second through hole H2 is disposed on the black matrix 42.
In the embodiments shown in fig. 6 to 8, the color resistance units of the organic light emitting display panel are disposed corresponding to the organic light emitting display devices, light generated by the organic light emitting display devices is emitted through the color resistance units, and the black matrix is disposed between the organic light emitting display devices, so that the probability of light mixing generated by sub-pixels with different colors at a large viewing angle is reduced while the antireflection is achieved, and the through holes disposed in the color resistance units and/or the black matrix can increase the brightness of the organic light emitting display panel, improve the brightness of the whole screen, reduce the power consumption of the organic light emitting display panel, and improve the display effect of the organic light emitting display panel. In addition, the uniformity of the luminance of the organic light emitting display panel may be adjusted by the through holes, for example, when the luminance is low at some positions, the density of the through holes is increased at the positions, and when the luminance is high at some positions, a small amount of through holes are provided or no through holes are provided at the positions; for another example, when the luminance of some sub-pixels is low, the through holes are disposed on the color resistance units corresponding to the sub-pixels with low luminance, and when the luminance of some sub-pixels is high, the through holes are not disposed or smaller through holes are disposed on the color resistance units corresponding to the sub-pixels with high luminance.
Fig. 9 is a schematic diagram of a film structure of another organic light emitting display panel according to an embodiment of the present invention, and optionally, in an embodiment, as shown in fig. 9, color resistance units 41 are disposed in one-to-one correspondence with organic light emitting display devices 21, when colors of the organic light emitting display devices 21 included in the light emitting function layer 20 are different, color resistance units 41 included in the color resistance layer 40 are also different, and colors of the color resistance units 41 and the corresponding organic light emitting display devices 21 are the same, and at least a portion of the color resistance units 41 are provided with first through holes H1.
In the organic light emitting display panel provided by this embodiment, the through holes are at least disposed on part of the color resistance units, so that the luminance of the organic light emitting display panel can be improved, and meanwhile, the influence on the antireflection effect of the color resistance layer is small.
Specifically, with continued reference to fig. 9, the organic light emitting display device 21 includes an anode 211, an organic light emitting material 212, and a cathode 213, where the size of the color resistance unit is 30 × 30 nm, the size of the first through hole H1 is 10 × 10 nm, the area ratio of the color resistance unit 41 and the black matrix 42 is 89% and 11%, respectively, the reflectivity of the color resistance unit 41 is 7%, the luminance value of the organic light emitting display device 21 is 450nit, the transmittance of the light generated by the organic light emitting display device 21 on the color resistance unit 41 is 70%, the transmittance on the through hole H1 is 100%, and the transmittance and the reflectivity of the cathode 213 are 45% and 55%, respectively, and then the luminance value that can be increased by adding the through hole H1 to the color resistance unit 41 is 22.5nit, which is specifically as follows:
by adding the through hole H1 to the color resistance unit 41, the reflectivity of the color resistance unit 41 is increased from 7% to 7.7%, specifically as follows:
from above-mentioned calculation result can see out, set up the through-hole on the color resistance unit, because through-hole partial luminousness is close 100%, the luminous intensity can obviously be increased, and simultaneously, the through-hole is less to the influence of reflectivity, and it is also less to subtract anti-effect influence to the color resistance layer, synthesizes and sees, through the setting of the color resistance layer that has the through-hole, can the antireflection, reduces organic light emitting display panel's thickness, can promote organic light emitting display panel's luminance simultaneously.
Optionally, in an embodiment, please continue to refer to fig. 9, the color-resisting layer 40 includes a first color-resisting unit 41a and a second color-resisting unit 41c, and a first through hole H1a on the first color-resisting unit 41a is larger than a first through hole H1c on the second color-resisting unit 41c, where the size of the through hole H refers to the size of the cross section of the through hole H. It should be noted that, unless otherwise specified, the cross-section in this application refers to a cross-section obtained by a section parallel to the array substrate.
By adopting the organic light-emitting display panel provided by the embodiment, the through holes arranged on different color resistance units have different sizes, and the brightness of different positions on the organic light-emitting display panel can be adjusted through the through holes with different sizes, so that the whole brightness of the organic light-emitting display panel is uniform.
Optionally, with continued reference to fig. 9, in an embodiment, the first color resistance unit 41a is a blue color resistance, and the second color resistance unit 41c is a red color resistance or a green color resistance. In another embodiment, the first color resistance unit 41a is a red color resistance, and the second color resistance unit 41c is a green color resistance. Fig. 10 is a schematic diagram of a film structure of another organic light emitting display panel according to an embodiment of the present invention, and optionally, in another embodiment, as shown in fig. 10, the embodiment is different from the embodiment shown in fig. 9 mainly in that the embodiment is provided with a first through hole H1a only on the color resistance unit 41a of blue color.
As can be seen from comparing fig. 2, fig. 3 and fig. 4, the light loss of the light passing through the red color resistor is the smallest, and the light passing through the blue color resistor is the largest, that is, the sub-pixels formed by the color resistor units and the organic light emitting display device with the same size have the largest light intensity of the red sub-pixel and the smallest light intensity of the blue sub-pixel, in the organic light emitting display panel provided in this embodiment, by providing a large through hole in the blue color resist, a smaller through hole is arranged on the red color resistor or the green color resistor, or a larger through hole is arranged on the red color resistor, the smaller through holes are arranged on the green color resistors, the difference of the light loss of the color resistors with different colors can be compensated through the size of the through holes, or, only the through holes are arranged on the blue color resistors, and the difference of light loss of the color resistors with different colors can be compensated through the positions of the through holes, so that the brightness of the display panel is more uniform.
Optionally, in an embodiment, please refer to fig. 9 again, an area of the first color resistance unit 41a is larger than an area of the second color resistance unit 41c, wherein, taking the color resistance units 41 are all rectangular, in the first direction x, a length of the first color resistance unit 41a is larger than a length of the second color resistance unit 41c, in the second direction, widths of the color resistance units 41 are the same (not shown), and the first direction is perpendicular to the second direction.
The larger the color resistance unit 41 is, the more the light loss is generated on the color resistance unit 41, and in the organic light emitting display panel provided in this embodiment, the larger first through hole H1a is provided on the larger first color resistance unit 41a, and the smaller first through hole H1c is provided on the smaller second color resistance unit 41c, so that the difference of light loss of color resistance itself with different sizes can be compensated by the size of the through hole, thereby making the brightness of the display panel more uniform.
Alternatively, in an embodiment, with continued reference to fig. 9, the organic light emitting function layer 20 further includes a pixel defining layer 22 disposed between the array substrate 10 and the color resistance layer 40, and may be formed of an organic material such as Polyimide (PI), polyamide, benzocyclobutene (BCB), acrylic resin, or phenolic resin, and the pixel defining layer 22 has an opening area and a non-opening area surrounding the opening area, and the organic light emitting display device 21 is located in the opening area, that is, the shape of the organic light emitting display device 21, that is, the shape of the opening area, the shape of the color resistance unit 41 and the corresponding organic light emitting display device 21 are the same, and is slightly larger than the corresponding organic light emitting display device 21, wherein the first color resistance unit 41a and the corresponding organic light emitting display device 21a have the same shape, and the second color resistance unit 41c and the corresponding organic light emitting display device 21 have the same shape, the third color resist unit 41b has the same shape as the corresponding organic light emitting display device 21 b. The shape of the black matrix 42 is the same as that of the non-opening area. Fig. 11 is a schematic top view of an organic light emitting display panel according to an embodiment of the present invention, and with continued reference to fig. 9 and 11, the shape of the through hole H1 on the color barrier unit 41 corresponding to the organic light emitting display device 21 is a first shape, and the shape of the color barrier unit 41 (i.e. the shape of the organic light emitting display device 21 or the opening area where the organic light emitting display device 21 is located) is a second shape, and the first shape is the same as the second shape. In fig. 11, the first color resist unit 41a is square, the through hole H1a in the first color resist unit 41a is also square, the second color resist unit 41c is oval, and the through hole H1c in the second color resist unit 41c is also oval.
In the organic light emitting display panel provided by this embodiment, the shape of the through hole on the color resistance layer is the same as the shape of the color resistance unit where the through hole is located, that is, the shape of the portion of the light that is directly emitted without passing through the color resistance is the same as the shape of the sub-pixel, so that visually, the shape of the through hole does not affect the arrangement of the sub-pixels.
Alternatively, in one embodiment, the shape of the through hole H includes a circle, an ellipse, a polygon, or an irregular shape, and different shapes of the organic light emitting display device can be adapted by setting the through hole H to different shapes.
The above embodiments of the organic light emitting display panel provided by the embodiments of the present invention also provide a display device, where the display device includes any one of the organic light emitting display panels provided by the present invention, and has technical features and corresponding technical effects, which are not described herein again.
Fig. 12 is a schematic view of a display device provided in an embodiment of the present invention, and alternatively, in an embodiment, as shown in fig. 12, the display device includes a housing a and an organic light emitting display panel b enclosed by the housing a, where the organic light emitting display panel b is any one of the organic light emitting display panels provided in the present invention.
As can be seen from the foregoing embodiments, the organic light emitting display panel and the display device provided by the present invention at least achieve the following beneficial effects:
organic light emitting display panel realizes the antireflection through setting up the colour resistance layer, for carry out the antireflection through the circular polaroid, the thickness on colour resistance layer is less, can reduce organic light emitting display panel thickness in the antireflection, to flexible display panel, will be favorable to the buckling of flexible organic light emitting display panel, and simultaneously, set up the through-hole on the colour resistance layer, the light part of luminous functional layer through the outgoing of through-hole department from this, do not pass through the colour resistance layer, make the luminance loss of this part light less, therefore, from organic light emitting display panel wholly, can increase the light yield of luminous functional layer light through setting up the through-hole, that is, the luminous intensity, promote the luminance of whole screen, reduce organic light emitting display panel's consumption, promote organic light emitting display panel's display effect.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (9)
1. An organic light emitting display panel, comprising:
an array substrate;
the light emitting function layer is positioned on one side of the array substrate and comprises a plurality of organic light emitting display devices;
the color resistance layer is positioned on one side, far away from the array substrate, of the light-emitting functional layer and comprises a plurality of color resistance units, and each color resistance unit comprises a first color resistance unit and a second color resistance unit;
the first color resistance unit is at least provided with a first through hole, and the first color resistance unit is a blue color resistance.
2. The organic light-emitting display panel according to claim 1,
the color resistance layer comprises a black matrix positioned between two adjacent color resistance units;
the black matrix comprises a second through hole.
3. The organic light-emitting display panel according to claim 2,
the color resistance unit is arranged corresponding to the organic light emitting display device.
4. The organic light-emitting display panel according to claim 1 or 2,
the first through hole is provided only on the color resistance unit of blue.
5. The organic light-emitting display panel according to claim 3,
the light emitting functional layer further includes: the pixel defining layer is arranged between the array substrate and the color resistance layer, the pixel defining layer is provided with an opening area and a non-opening area surrounding the opening area, and the organic light-emitting display device is positioned in the opening area;
the shape of the first through hole in the color resistance unit corresponding to the organic light-emitting display device is a first shape, the shape of the opening area where the organic light-emitting display device is located is a second shape, and the first shape is the same as the second shape.
6. The organic light-emitting display panel according to claim 5,
the shape of the first through hole includes a circle, an ellipse, a polygon or an irregular shape.
7. The organic light-emitting display panel according to claim 2,
the projections of the first through holes and/or the second through holes on the array substrate are irregularly arranged.
8. The organic light-emitting display panel according to claim 2,
the first through hole and/or the second through hole penetrate through the color resistance layer in the thickness direction of the organic light-emitting display panel.
9. A display device characterized by comprising the organic light-emitting display panel according to any one of claims 1 to 8.
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| Publication number | Publication date |
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| CN108807718A (en) | 2018-11-13 |
| CN112750963B (en) | 2022-07-01 |
| CN108807718B (en) | 2021-02-02 |
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