CN113097274B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN113097274B CN113097274B CN202110346714.8A CN202110346714A CN113097274B CN 113097274 B CN113097274 B CN 113097274B CN 202110346714 A CN202110346714 A CN 202110346714A CN 113097274 B CN113097274 B CN 113097274B
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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
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/858—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
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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
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
Abstract
The invention provides a display panel and a display device, wherein in the direction from a first refraction layer to an Nth refraction layer, the included angle of the refraction layer at the opening of the refraction layer is gradually reduced, the opening area of a refraction layer pair is also gradually reduced, and the corresponding range of an opening corresponding to a next refraction layer is in the corresponding range of an opening corresponding to an upper refraction layer, so that the light with large angle, medium angle and/or small angle emitted by a light-emitting unit can be deflected through the first refraction layer to the Nth refraction layer with the opening, the light emitted by the light-emitting unit is ensured to be emitted from the position right above the corresponding pixel opening, the high light emitting brightness at the pixel opening is ensured, the condition of mixed light between adjacent pixel openings is avoided, and the good display effect and high light emitting efficiency of the display panel are ensured.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
Compared with a liquid crystal display screen, the organic light-emitting display screen has the advantages of being lighter and thinner, high in brightness, low in power consumption, fast in response, high in definition, good in flexibility, high in light-emitting efficiency and the like, and gradually becomes a mainstream display technology. The organic light emitting display screen has the light emitting principle that holes generated by an anode and electrons generated by a cathode in an organic light emitting device move under the action of an electric field, are respectively injected into a hole transport layer and an electron transport layer and migrate to an organic light emitting material layer, and when the holes and the electrons meet at the light emitting material layer, energy excitons are generated, so that light emitting molecules in the organic light emitting material layer are excited to generate visible light. The organic light-emitting display screen comprises a plurality of film layer structures with different refractive indexes, so that light emitted by one pixel can not be emitted from the right top of the pixel through reflection and refraction in various modes, and the light-emitting brightness is influenced; meanwhile, light with large angle may reach adjacent pixels, which causes a problem of color mixing.
Disclosure of Invention
In view of this, the present invention provides a display panel and a display device, which effectively solve the technical problems in the prior art and ensure a high display effect of the display panel.
In order to realize the purpose, the technical scheme provided by the invention is as follows:
a display panel, comprising:
a substrate;
a light emitting unit layer on one side of the substrate, the light emitting unit layer including a plurality of light emitting units;
the pixel definition layer comprises a plurality of pixel openings, the light-emitting units correspond to the pixel openings one by one, and the light-emitting units are positioned in the pixel openings;
the low refraction layer is positioned on one side, away from the substrate, of the pixel definition layer, the low refraction layer comprises a first refraction layer to an Nth refraction layer which are sequentially arranged along the direction from the substrate to the pixel definition layer, the ith refraction layer comprises a plurality of ith openings, and the ith openings correspond to the pixel openings; at any one pixel opening, the orthographic projection of the (i + 1) th opening on the substrate is positioned in the range of the orthographic projection of the ith opening on the substrate, and the included angle of the ith refraction layer at the ith opening is larger than the included angle of the (i + 1) th refraction layer at the (i + 1) th opening, i is an integer which is larger than or equal to 1 and smaller than N, and N is an integer which is larger than or equal to 2;
and the high-refraction layer covers the low-refraction layer and fills the opening in the low-refraction layer, and the refractive index of the high-refraction layer is greater than that of any refraction layer in the low-refraction layer.
Correspondingly, the invention further provides a display device which comprises the display panel.
Compared with the prior art, the technical scheme provided by the invention at least has the following advantages:
the invention provides a display panel and a display device, comprising: the light-emitting unit layer is positioned on one side of the substrate and comprises a plurality of light-emitting units; the pixel definition layer comprises a plurality of pixel openings, the light-emitting units correspond to the pixel openings one by one, and the light-emitting units are positioned in the pixel openings; the low refraction layer is positioned on one side, away from the substrate, of the pixel definition layer, the low refraction layer comprises a first refraction layer to an Nth refraction layer which are sequentially arranged along the direction from the substrate to the pixel definition layer, the ith refraction layer comprises a plurality of ith openings, and the ith openings correspond to the pixel openings; at any one pixel opening, the orthographic projection of the (i + 1) th opening on the substrate is positioned in the range of the orthographic projection of the ith opening on the substrate, and the included angle of the ith refraction layer at the ith opening is larger than the included angle of the (i + 1) th refraction layer at the (i + 1) th opening, i is an integer which is larger than or equal to 1 and smaller than 1, and N is an integer which is larger than or equal to 2; and the high-refraction layer covers the low-refraction layer and fills the opening in the low-refraction layer, and the refractive index of the high-refraction layer is greater than that of any refraction layer in the low-refraction layer.
According to the technical scheme provided by the invention, in the direction from the first refraction layer to the Nth refraction layer, the included angle of the refraction layer at the opening of the refraction layer is gradually reduced, the opening areas of the refraction layer pairs are also gradually reduced, the opening corresponding range corresponding to the next refraction layer is in the opening corresponding range corresponding to the previous refraction layer, and then the light rays with large angles, medium angles and/or small angles emitted by the light-emitting units can be deflected through the first refraction layer to the Nth refraction layer with the openings, so that the light emitted by the light-emitting units can be emitted from the position right above the corresponding pixel openings, the light emitting brightness at the pixel openings is high, the condition of mixed light between adjacent pixel openings is avoided, and the display effect of the display panel is good and the light emitting efficiency is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of another display panel according to an embodiment of the disclosure;
fig. 13 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 14 is a schematic structural diagram of another display panel according to an embodiment of the disclosure;
fig. 15 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 16 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 17 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 18 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As described in the background art, the light emitting principle of the organic light emitting display panel is that holes generated by an anode and electrons generated by a cathode in an organic light emitting device move under the action of an electric field, are respectively injected into a hole transport layer and an electron transport layer, and migrate to an organic light emitting material layer, and when the holes and the electrons meet at the light emitting material layer, energy excitons are generated, so that light emitting molecules in the organic light emitting material layer are excited to generate visible light. The organic light-emitting display screen comprises a plurality of film layer structures with different refractive indexes, so that light emitted by one pixel can not be emitted from the right top of the pixel through reflection and refraction in various modes, and the light-emitting brightness is influenced; meanwhile, light with large angle may reach adjacent pixels, which causes a problem of color mixing.
Accordingly, the embodiment of the invention provides a display panel and a display device, which effectively solve the technical problems in the prior art and ensure that the display effect of the display panel is high.
To achieve the above object, the technical solutions provided by the embodiments of the present invention are described in detail below, specifically with reference to fig. 1 to 18.
Referring to fig. 1, a schematic structural diagram of a display panel according to an embodiment of the present invention is shown, where the display panel includes:
a substrate 100.
A light emitting cell layer on one side of the substrate 100, the light emitting cell layer including a plurality of light emitting cells 200.
The pixel definition layer 300 includes a plurality of pixel openings 301, the light emitting units 200 are in one-to-one correspondence with the pixel openings 301, and the light emitting units 200 are located in the pixel openings 301.
A low refractive layer on a side of the pixel defining layer 300 away from the substrate 100, where the low refractive layer includes a first refractive layer to an nth refractive layer (for example, two refractive layers shown in fig. 1 are a first refractive layer 401 and a second refractive layer 402) sequentially arranged along a direction from the substrate 100 to the pixel defining layer 300, the ith refractive layer includes a plurality of ith openings, and the ith openings correspond to the pixel openings; at any pixel opening 301, the (i + 1) th opening is in the orthographic projection on the substrate 100 is located the (i) th opening is in the orthographic projection range on the substrate 100, and the (i) th refraction layer is in the included angle at the (i) th opening is greater than the included angle of the (i + 1) th refraction layer at the (i + 1) th opening, i is an integer greater than or equal to 1 and equal to N, and N is an integer greater than or equal to 2.
And, high refraction layer 500 covers low refraction layer just fills opening in the low refraction layer, the refracting index of high refraction layer 500 is greater than the refracting index of arbitrary refraction layer in the low refraction layer.
In the pixel opening 301 provided in the embodiment of the present invention, an orthogonal projection of the (i + 1) th opening on the substrate 100 is located in an orthogonal projection range of the (i) th opening on the substrate 100, that is, an area size of the (i + 1) th opening is smaller than an area size of the (i) th opening, and an area occupied by the (i + 1) th opening is located in an area occupied by the (i) th opening; that is, along the direction from the first refraction layer to the nth refraction layer, when the corresponding pixel openings include the first opening to the nth opening, the first opening to the nth opening corresponding to the pixel openings are in a nested structure, and the areas of the first opening to the nth opening are in a decreasing trend. As shown in fig. 1, at a pixel opening 301, the area size of the first opening 4011 is larger than that of the second opening 4012, and the occupied area of the second opening 4012 is within the occupied area of the first opening 4011.
And an included angle of the ith refraction layer provided by the embodiment of the invention at the ith opening is an angle between a solid part of the ith refraction layer departing from the ith opening and a plane parallel to the plane of the substrate 100. And along the direction of the first refraction layer to the Nth refraction layer, when the corresponding pixel openings comprise the first opening to the Nth opening, the included angles of the first refraction layer to the Nth refraction layer at the corresponding openings respectively tend to decrease. As shown in fig. 1, at a pixel opening 301, the relationship between the included angle β 1 of the first refraction layer at the first opening 4011 and the included angle β 2 of the second refraction layer at the second opening 4012 is: beta 2 is less than beta 1.
It can be understood that, according to the technical solution provided by the embodiment of the present invention, in the direction from the first refraction layer to the nth refraction layer, the included angle of the refraction layer at the opening of the refraction layer is gradually reduced, the opening areas of the refraction layer pairs are also gradually reduced, and the opening corresponding range corresponding to the next refraction layer is within the opening corresponding range corresponding to the previous refraction layer, so that the light emitted from the light emitting unit at the large angle, the light emitted from the light emitting unit at the medium angle and the light emitted from the light emitting unit at the small angle can be deflected through the first refraction layer to the nth refraction layer having the opening, thereby ensuring that the light emitted from the light emitting unit is emitted from the position right above the corresponding pixel opening, ensuring that the luminance of the light emitted from the pixel opening is high, avoiding the occurrence of light mixing between adjacent pixel openings, and ensuring that the display panel has good display effect and high light emitting efficiency.
It should be noted that the substrate provided in the embodiments of the present invention includes a bottom substrate and a transistor array layer located on the bottom substrate, which is the same as the prior art, and therefore, redundant description is not repeated in the present invention.
In an embodiment of the invention, the low refractive layer provided by the invention can be made of an organic layer, wherein the organic layer can be a separately made film structure. Or, in order to save resources and simplify the film structure, the organic layer for manufacturing the low refractive layer provided in the embodiment of the present invention may also be a film structure multiplexed when manufacturing other organic structures of the display panel, that is, the display panel includes a plurality of organic layers, and at least one of the organic layers includes a refractive layer in the low refractive layer.
Specifically, as shown in fig. 2, a schematic structural diagram of another display panel provided in the embodiment of the present invention is shown, where the display panel includes an encapsulation layer located on a side of the pixel defining layer 300 away from the substrate 100, and a touch layer located on a side of the encapsulation layer away from the substrate.
The encapsulation layer includes a first inorganic layer 610, a first organic layer 620, and a second inorganic layer 630 sequentially disposed along a direction from the substrate 100 to the pixel defining layer 300, the touch layer includes a touch electrode layer 710 and a second organic layer 720 sequentially disposed along a direction from the substrate 100 to the pixel defining layer 300, and the plurality of organic layers includes the first organic layer 620 and the second organic layer 720.
When the first organic layer 620 includes one of the low refractive layers 410, the high refractive layer includes a sub-layer 510 located between the first organic layer 620 and the second inorganic layer 630, covering the first organic layer 620 and filling an opening in the first organic layer 620.
As shown in fig. 3, a schematic structural diagram of another display panel according to an embodiment of the present invention is provided, where the display panel includes an encapsulation layer located on a side of the pixel defining layer 300 away from the substrate 100, and a touch layer located on a side of the encapsulation layer away from the substrate.
The encapsulation layer includes a first inorganic layer 610, a first organic layer 620, and a second inorganic layer 630 sequentially disposed along a direction from the substrate 100 to the pixel defining layer 300, the touch layer includes a touch electrode layer 710 and a second organic layer 720 sequentially disposed along a direction from the substrate 100 to the pixel defining layer 300, and the plurality of organic layers includes the first organic layer 620 and the second organic layer 720.
When the second organic layer 720 includes one refraction layer 420 of the low refraction layers, the high refraction layer includes a sub-layer 520 located on a side of the second organic layer 720 facing away from the substrate 100, covering the second organic layer 720 and filling the opening of the second organic layer 720.
It should be noted that the light emitting unit provided by the embodiment of the present invention includes an anode, a light emitting layer, and a cathode sequentially stacked from the substrate to the pixel defining layer, wherein the anodes of different light emitting units are independently disposed in the pixel opening in a block shape; the cathode may be disposed in the pixel opening in an independent block shape, or may be in a whole surface structure covering the pixel defining layer and the pixel opening, which is not limited in the present invention. When the cathode is arranged in a whole-surface structure, the pixel definition layer is positioned between the cathode and the substrate, and the packaging layer is positioned between the cathode and the touch layer. In addition, a buffer layer and other related transition structures may be further disposed between the encapsulation layer and the touch layer, which is the same as that in the prior art, and therefore redundant description is not repeated in the present invention.
In an embodiment of the invention, the display panel provided by the invention may include polarizers or color resistance layers disposed on the side of the touch layer away from the substrate, which need to be specifically designed according to the light emitting type of the display panel. As shown in fig. 4 and fig. 5, schematic structural diagrams of two display panels provided in the embodiment of the present invention are shown; when the second organic layer 720 is not used as a film structure of the multiplexing refractive layer as shown in fig. 4, the polarizer POL may be disposed on a side of the second organic layer 720 facing away from the substrate 100. And the second organic layer 720 shown in fig. 5 is used as the film structure of the multiplexing refractive layer 420, the polarizer POL may be disposed on the side of the sub-layer 520 of the high refractive layer facing away from the substrate 100.
As shown in fig. 6, which is a schematic structural diagram of another display panel provided in an embodiment of the present invention, the display panel includes an encapsulation layer located on a side of the pixel definition layer 300 away from the substrate 100, and a touch layer located on a side of the encapsulation layer away from the substrate. The encapsulation layer includes a first inorganic layer 610, a first organic layer 620, and a second inorganic layer 630 sequentially disposed along a direction from the substrate 100 to the pixel defining layer 300, the touch layer includes a touch electrode layer 710 and a second organic layer 720 sequentially disposed along a direction from the substrate 100 to the pixel defining layer 300, and the plurality of organic layers includes the first organic layer 620 and the second organic layer 720. The display panel further includes a color resist layer 810 located on a side of the touch layer away from the substrate 100, and a third organic layer 820 located on a side of the color resist layer 810 away from the substrate, where the plurality of organic layers include the third organic layer 820. When the third organic layer 820 is a refractive layer 430 of the low refractive layers, the high refractive layer includes a sub-layer 530 located on a side of the third organic layer 820 away from the substrate 100, covering the third organic layer 820, and filling an opening in the third organic layer 820.
As shown in fig. 6, the first organic layer 620, the second organic layer 720 and the third organic layer 820 of the display panel provided by the embodiment of the invention can be multiplexed to be made into a refractive layer. In the direction from the substrate 100 to the pixel definition layer 300 and corresponding to any pixel opening, the opening areas of the refraction layer 410, the refraction layer 420 and the refraction layer 430 are gradually decreased, and the included angles of the refraction layer 410, the refraction layer 420 and the refraction layer 430 at the opening are gradually decreased, so that the light rays emitted from the light-emitting unit 200 at large, medium and small angles can be deflected, the light emitted from the light-emitting unit 200 is ensured to be emitted from the position right above the corresponding pixel opening, the light-emitting brightness at the pixel opening is ensured to be high, the condition of mixed light between adjacent pixel openings is avoided, and the display effect of the display panel is ensured to be high.
In an embodiment of the present invention, an orthographic projection of the first opening on the substrate provided in the embodiment of the present invention completely covers an orthographic projection of the corresponding pixel opening on the substrate; and the orthographic projection of any one of the second opening to the Nth opening on the substrate is positioned in the orthographic projection range of the corresponding pixel opening on the substrate. Specifically, as shown in fig. 7, a schematic structural diagram of another display panel according to an embodiment of the present invention is provided, in which an example of the display panel includes a first refractive layer 401 and a second refractive layer 402. The display panel provided by the embodiment of the invention comprises a first refraction layer 401 and a second refraction layer 402, wherein an orthographic projection of a first opening 4011 of the first refraction layer 401 on a substrate 100 completely covers an orthographic projection of a corresponding pixel opening 301 on the substrate 100, and an orthographic projection of a second opening 4012 of the second refraction layer 402 on the substrate 100 is located in an orthographic projection range of the pixel opening 301 on the substrate 100.
It can be understood that, in the first refraction layer provided in the embodiment of the present invention, the occupied area of the first opening is larger than the occupied area of the corresponding pixel opening, and the area of the pixel opening is located within the area range of the first opening, so that the first refraction layer can better deflect the large-angle light emitted from the light emitting unit, so that the large-angle light emitted from the light emitting unit is emitted from the position right above the corresponding pixel opening, and the first refraction layer can be prevented from affecting the normal-view light. And the area occupied by the opening of any one of the second refraction layer to the nth refraction layer provided by the embodiment of the invention is smaller than the area occupied by the corresponding pixel opening, and the area where the opening is located is within the range of the area where the pixel opening is located, so that the light rays with the middle angle and the small angle emitted by the light-emitting unit can be better deflected from the second refraction layer to the nth refraction layer, and the light rays with the middle angle and the small angle emitted by the light-emitting unit are emitted from the right above the corresponding pixel opening.
Optionally, the distance between the edge line of the orthographic projection of the first opening on the substrate and the edge line of the orthographic projection of the pixel opening on the substrate is d1, where d1 is greater than 0 and less than or equal to 2 μm; and the distance between the edge line of the orthographic projection of any one of the second opening to the Nth opening on the substrate and the edge line of the orthographic projection of the pixel opening on the substrate is d2, wherein d2 is more than 0 and less than or equal to 2 mu m, and the specific numerical value of the distance between the edge line of the opening of the refraction layer and the edge line of the pixel opening is not particularly limited in the invention and needs to be specifically designed and selected according to practical application.
The included angle of the first refraction layer at the first opening is greater than or equal to 65 degrees; and the included angle of any one of the second refraction layer to the nth refraction layer at the opening is less than 65 degrees, and similarly, the specific value of the included angle of the refraction layer at the opening is not particularly limited in the present invention and needs to be specifically designed and selected according to practical application.
It should be noted that, in the embodiment of the present invention, the shapes of the pixel opening and the opening on the refraction layer are not particularly limited, and may be a regular shape or an irregular shape, and this needs to be specifically designed according to practical applications. In the orthographic projection of the openings of the adjacent refraction layers on the substrate, the distance between the edge lines of the openings of the adjacent refraction layers can be equal at any position, can be partially equal but not equal, and can be non-equal as a whole, so that the invention is not particularly limited. As shown in fig. 8, which is a schematic structural diagram of an opening of an adjacent refractive layer provided in the embodiment of the present invention, an opening on the refractive layer provided in the embodiment of the present invention may be circular, and at any one of the pixel openings, an edge line of an orthogonal projection of an i +1 th opening 401 (i + 1) on the substrate and an edge line of an orthogonal projection of an i th opening 401i on the substrate are disposed at an equal interval k; that is, the orthographic projection of the (i + 1) th opening 401 (i + 1) on the substrate and the orthographic projection of the ith opening 401i on the substrate are concentric circles.
And at any one pixel opening, the orthographic projection edge line of the opening of at least one refraction layer from the first refraction layer to the Nth refraction layer on the substrate and the orthographic projection edge line of the pixel opening on the substrate are arranged at equal intervals. In the direction from the substrate to the pixel definition layer, the edge line of the orthographic projection of the opening of the previous refraction layer on the substrate and the edge line of the orthographic projection of the pixel opening on the substrate are arranged at equal intervals; the edge line of the orthographic projection of the opening of the next refraction layer on the substrate and the edge line of the orthographic projection of the pixel opening on the substrate are arranged at unequal intervals, and the invention is not particularly limited. In the refraction layers provided by the embodiment of the invention, the edge lines of the orthographic projection of the opening on the substrate and the edge lines of the orthographic projection of the pixel opening on the substrate are arranged at equal intervals, and the intervals between the edge lines of the openings of the adjacent refraction layers can be at equal intervals at any position; and in the refraction layers, which are arranged at unequal intervals between the edge lines of the orthographic projections of the openings on the substrate and the edge lines of the orthographic projections of the pixel openings on the substrate, the intervals between the edge lines of the openings of the adjacent refraction layers can be equal at any position, and the invention is not particularly limited.
Furthermore, in order to better improve the display effect of the display panel, the invention can perform the differential design on the refraction layers corresponding to the sub-pixels with different colors of the display panel. As shown in fig. 9 to 11, the display panel according to the embodiment of the present invention includes a plurality of sub-pixels, the sub-pixels correspond to the light emitting units one by one, the sub-pixels include a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, for example, fig. 9 shows a region corresponding to the blue sub-pixel B, fig. 10 shows a region corresponding to the red sub-pixel R, and fig. 11 shows a region corresponding to the green sub-pixel G. The included angle of the opening 4011 of the first refraction layer 401 corresponding to the blue sub-pixel B is λ 1, the included angle of the opening 4011 of the first refraction layer 401 corresponding to the red sub-pixel R is λ 2, the included angle of the opening 4011 of the first refraction layer 401 corresponding to the green sub-pixel G is λ 3, λ 1 > λ 2 > λ 3, and therefore the large-viewing-angle reflectivity of the blue sub-pixel is improved.
It should be noted that, in the embodiment of the present invention, the region corresponding to the red sub-pixel emits red light, the region corresponding to the blue sub-pixel emits blue light, and the region corresponding to the green sub-pixel emits green light; for this reason, the color of the light emitted from the corresponding region of the sub-pixels with different colors can be determined by the light emitting unit, that is, the light emitting unit includes light emitting units emitting red light, blue light and green light. Or, the light emitted from the corresponding regions of the sub-pixels with different colors may be determined by the color resist layer, that is, all the light emitting units emit white light, and emit red light, blue light and green light respectively after passing through the color resist layers with different colors, which is not limited in the present invention.
As shown in fig. 12 to 14, which are schematic structural views of a display panel according to an embodiment of the present invention, the display panel includes a plurality of sub-pixels, the sub-pixels correspond to the light emitting units one by one, the sub-pixels include a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, for example, fig. 12 shows a region corresponding to the blue sub-pixel B, fig. 13 shows a region corresponding to the red sub-pixel R, and fig. 14 shows a region corresponding to the green sub-pixel G. The distance between the edge line of the orthographic projection of the opening (as shown in fig. 1 and 4012) of the ith refraction layer corresponding to the blue sub-pixel B on the substrate 100 and the edge line of the orthographic projection of the pixel opening 301 on the substrate 100 is B, the distance between the edge line of the orthographic projection of the opening (as shown in fig. 1 and 4012) of the ith refraction layer corresponding to the red sub-pixel R on the substrate 100 and the edge line of the orthographic projection of the pixel opening 301 on the substrate 100 is R, the distance between the edge line of the orthographic projection of the opening (as shown in fig. 1 and 4012) of the ith refraction layer corresponding to the green sub-pixel G on the substrate 100 and the edge line of the orthographic projection of the pixel opening 301 on the substrate 100 is G, and B < R < G.
As shown in fig. 12 to 14, taking the first refraction layer 401 as an example, a distance between an edge line of the orthographic projection of the opening 4011 corresponding to the blue sub-pixel B on the substrate 100 and an edge line of the orthographic projection of the pixel opening 301 on the substrate 100 of the first refraction layer 401 is B, a distance between an edge line of the orthographic projection of the opening 4011 corresponding to the red sub-pixel R on the substrate 100 and an edge line of the orthographic projection of the pixel opening 301 on the substrate 100 of the first refraction layer 401 is R, a distance between an edge line of the orthographic projection of the opening 4011 corresponding to the green sub-pixel G on the substrate 100 and an edge line of the orthographic projection of the pixel opening 301 on the substrate 100 of the first refraction layer 401 is G, B < R < G
It can be understood that, in the different color sub-pixels provided by the embodiments of the present invention, the light-emitting efficiency of the blue sub-pixel is less than that of the red sub-pixel, and the light-emitting efficiency of the red sub-pixel is less than that of the green sub-pixel, because the edge line of the opening of the refraction layer is more matched with the edge line of the pixel opening, the reason why the light emitting effect of the region is higher is that, compared with the blue sub-pixel, the red sub-pixel and the green sub-pixel, the embodiment of the invention sets the edge line of the opening of the i-th refraction layer corresponding to the blue sub-pixel to be closest to the edge line of the pixel opening, and the edge line of the opening of the red sub-pixel corresponding to the ith refraction layer is far away from the edge line of the pixel opening, and the edge line of the opening of the blue sub-pixel corresponding to the ith refraction layer is far away from the edge line of the pixel opening, so that the uniformity of the whole light emitting effect of the display panel is improved.
As shown in fig. 15 to 17, which are schematic structural diagrams of a display panel according to an embodiment of the present invention, the display panel according to the embodiment of the present invention includes a plurality of sub-pixels, the sub-pixels correspond to the light emitting units one by one, the sub-pixels include a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, as shown in fig. 15, a region corresponding to the blue sub-pixel B, a region corresponding to the red sub-pixel R in fig. 16, and a region corresponding to the green sub-pixel G in fig. 17. The number of refraction layers at the position of the low-refraction layer corresponding to the blue sub-pixel B is B1 (as shown in fig. 15, three refraction layers at the position of the blue sub-pixel B are a first refraction layer 401 to a third refraction layer 403, wherein the third refraction layer 403 includes a third opening 4013), the number of refraction layers at the position of the low-refraction layer corresponding to the red sub-pixel R is R1 (as shown in fig. 16, two refraction layers at the position of the red sub-pixel R are a first refraction layer 401 and a second refraction layer 402), the number of refraction layers at the position of the low-refraction layer corresponding to the green sub-pixel G is G1 (as shown in fig. 17, two refraction layers at the position of the green sub-pixel G are a first refraction layer 401 and a second refraction layer 402), and B1 is not less than R1 and not less than G1.
It can be understood that, in the sub-pixels with different colors provided by the embodiments of the present invention, the light-emitting efficiency of the blue sub-pixel is less than that of the red sub-pixel, and the light-emitting efficiency of the red sub-pixel is less than that of the green sub-pixel, so that the light-emitting efficiency at the blue sub-pixel is improved to the maximum by setting the number of refraction layers b1 at the blue sub-pixel to be greater than or equal to the number of refraction layers r1 at the red sub-pixel, and setting the number of refraction layers r1 at the red sub-pixel to be greater than or equal to the number of refraction layers g1 at the green sub-pixel, so that the light-emitting efficiency at the blue sub-pixel is improved to the minimum, and the light-emitting efficiency at the green sub-pixel is minimized, thereby ensuring that the overall light-emitting effect uniformity of the display panel is high.
Correspondingly, the embodiment of the invention also provides a display device, and the display device comprises the display panel provided by any one of the embodiments.
Referring to fig. 18, which is a schematic structural diagram of a display device according to an embodiment of the present invention, the display device according to the embodiment of the present invention may be a mobile terminal 1000, and the mobile terminal includes the display panel according to any one of the embodiments.
It should be noted that the display device provided in the embodiment of the present invention may also be a notebook, a tablet, a computer, a wearable device, and the like, and the present invention is not limited in particular.
Compared with the prior art, the technical scheme provided by the embodiment of the invention at least has the following advantages:
the embodiment of the invention provides a display panel and a display device, comprising: the light-emitting unit layer is positioned on one side of the substrate and comprises a plurality of light-emitting units; the pixel definition layer comprises a plurality of pixel openings, the light-emitting units correspond to the pixel openings one by one, and the light-emitting units are positioned in the pixel openings; the low refraction layer is positioned on one side, away from the substrate, of the pixel definition layer, the low refraction layer comprises a first refraction layer to an Nth refraction layer which are sequentially arranged along the direction from the substrate to the pixel definition layer, the ith refraction layer comprises a plurality of ith openings, and the ith openings correspond to the pixel openings; at any one pixel opening, the orthographic projection of the (i + 1) th opening on the substrate is positioned in the range of the orthographic projection of the ith opening on the substrate, and the included angle of the ith refraction layer at the ith opening is larger than the included angle of the (i + 1) th refraction layer at the (i + 1) th opening, i is an integer which is larger than or equal to 1 and smaller than N, and N is an integer which is larger than or equal to 2; and the high-refraction layer covers the low-refraction layer and fills the opening in the low-refraction layer, and the refractive index of the high-refraction layer is greater than that of any refraction layer in the low-refraction layer.
As can be seen from the above, in the technical scheme provided in the embodiment of the present invention, in the direction from the first refraction layer to the nth refraction layer, the included angle of the refraction layer at the opening of the refraction layer is gradually reduced, the opening areas of the refraction layer pairs are also gradually reduced, and the opening corresponding range corresponding to the next refraction layer is within the opening corresponding range corresponding to the previous refraction layer, so that the light emitted from the light emitting unit at the large angle, the light emitted from the light emitting unit at the medium angle, and the light emitted from the light emitting unit at the small angle can be deflected through the first refraction layer to the nth refraction layer having the opening, thereby ensuring that the light emitted from the light emitting unit is emitted from the position right above the corresponding pixel opening, ensuring that the luminance of the light emitted from the pixel opening is high, avoiding the mixed light between adjacent pixel openings, and ensuring that the display panel has good display effect and high light emitting efficiency.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (12)
1. A display panel, comprising:
a substrate;
a light emitting unit layer on one side of the substrate, the light emitting unit layer including a plurality of light emitting units;
the pixel definition layer comprises a plurality of pixel openings, the light-emitting units correspond to the pixel openings one by one, and the light-emitting units are positioned in the pixel openings;
the low refraction layer is positioned on one side, away from the substrate, of the pixel definition layer, the low refraction layer comprises a first refraction layer to an Nth refraction layer which are sequentially arranged along the direction from the substrate to the pixel definition layer, the ith refraction layer comprises a plurality of ith openings, and the ith openings correspond to the pixel openings; at any one pixel opening, the orthographic projection of the (i + 1) th opening on the substrate is positioned in the orthographic projection range of the ith opening on the substrate, and at any one pixel opening, the included angle of the ith refraction layer at the ith opening is larger than that of the (i + 1) th refraction layer at the (i + 1) th opening, i is an integer larger than or equal to 1 and smaller than N, and N is an integer larger than or equal to 2; the included angle of the ith refraction layer at the ith opening is the angle between the solid part of the ith refraction layer, which deviates from the ith opening, and the plane parallel to the plane where the substrate is located; the included angle of the first refraction layer at the first opening is greater than or equal to 65 degrees;
and the included angle of any one of the second refraction layer to the Nth refraction layer at the opening is less than 65 degrees;
and the high-refraction layer covers the low-refraction layer and fills the opening in the low-refraction layer, and the refractive index of the high-refraction layer is greater than that of any refraction layer in the low-refraction layer.
2. The display panel according to claim 1, wherein the display panel comprises a plurality of organic layers, and at least one of the organic layers comprises one of the low refractive layers.
3. The display panel according to claim 2, wherein the display panel comprises an encapsulation layer on a side of the pixel definition layer facing away from the substrate, and a touch layer on a side of the encapsulation layer facing away from the substrate;
the packaging layer comprises a first inorganic layer, a first organic layer and a second inorganic layer which are sequentially arranged along the direction from the substrate to the pixel definition layer, the touch layer comprises a touch electrode layer and a second organic layer which are sequentially arranged along the direction from the substrate to the pixel definition layer, and the organic layers comprise the first organic layer and the second organic layer;
when the first organic layer comprises one of the low refractive layers, the high refractive layer comprises a sublayer which is positioned between the first organic layer and the second inorganic layer, covers the first organic layer and fills the opening in the first organic layer; and when the second organic layer comprises a refraction layer in the low refraction layer, the high refraction layer comprises a sublayer which is positioned on one side of the substrate deviated from the second organic layer and covers the second organic layer and fills the opening in the second organic layer.
4. The display panel according to claim 3, wherein the display panel further comprises a color-resist layer on a side of the touch layer facing away from the substrate, and a third organic layer on a side of the color-resist layer facing away from the substrate, the plurality of organic layers including the third organic layer;
when the third organic layer comprises one of the low refractive layers, the high refractive layer comprises a sublayer which is located on one side of the third organic layer, which is deviated from the substrate, covers the third organic layer and fills the opening in the third organic layer.
5. The display panel of claim 1, wherein an orthographic projection of a first opening on the substrate completely covers an orthographic projection of its corresponding pixel opening on the substrate;
and the orthographic projection of any one of the second opening to the Nth opening on the substrate is positioned in the orthographic projection range of the corresponding pixel opening on the substrate.
6. The display panel of claim 5, wherein the distance between the edge line of the orthographic projection of the first opening on the substrate and the edge line of the orthographic projection of the pixel opening on the substrate is d1, wherein 0 < d1 ≦ 2 μm;
and the distance between the orthographic projection edge line of any one of the second opening to the Nth opening on the substrate and the orthographic projection edge line of the pixel opening on the substrate is d2, wherein d2 is more than 0 and less than or equal to 2 mu m.
7. The display panel according to claim 1, wherein the display panel comprises a plurality of sub-pixels, the sub-pixels correspond to the light emitting units one by one, and the sub-pixels comprise red, green, and blue sub-pixels;
the included angle of the opening of the first refraction layer corresponding to the blue sub-pixel is lambda 1, the included angle of the opening of the first refraction layer corresponding to the red sub-pixel is lambda 2, the included angle of the opening of the first refraction layer corresponding to the green sub-pixel is lambda 3, and lambda 1 is larger than lambda 2 and larger than lambda 3.
8. The display panel according to claim 1, wherein the display panel comprises a plurality of sub-pixels, the sub-pixels correspond to the light emitting units one by one, and the sub-pixels comprise red, green, and blue sub-pixels;
the distance between the edge line of the orthographic projection of the opening of the ith refraction layer corresponding to the blue sub-pixel on the substrate and the edge line of the orthographic projection of the pixel opening on the substrate is b, the distance between the edge line of the orthographic projection of the opening of the ith refraction layer corresponding to the red sub-pixel on the substrate and the edge line of the orthographic projection of the pixel opening on the substrate is r, the distance between the edge line of the orthographic projection of the opening of the ith refraction layer corresponding to the green sub-pixel on the substrate and the edge line of the orthographic projection of the pixel opening on the substrate is g, and b < r < g.
9. The display panel according to claim 1, wherein the display panel comprises a plurality of sub-pixels, the sub-pixels correspond to the light emitting units one by one, and the sub-pixels comprise red, green, and blue sub-pixels;
the number of the refraction layers at the positions of the low refraction layers corresponding to the blue sub-pixels is b1, the number of the refraction layers at the positions of the low refraction layers corresponding to the red sub-pixels is r1, the number of the refraction layers at the positions of the low refraction layers corresponding to the green sub-pixels is g1, and b1 is more than or equal to r1 and more than or equal to g 1.
10. The display panel according to claim 1, wherein at any one of the pixel openings, an edge line of an orthographic projection of an i +1 th opening on the substrate is equally spaced from an edge line of an orthographic projection of the i-th opening on the substrate.
11. The display panel according to claim 1, wherein at any one of the pixel openings, an edge line of an orthographic projection of the opening of at least one of the first to nth refraction layers on the substrate is equally spaced from an edge line of an orthographic projection of the pixel opening on the substrate.
12. A display device characterized in that it comprises a display panel according to any one of claims 1 to 11.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1607879A (en) * | 2003-08-28 | 2005-04-20 | 三星Sdi株式会社 | Organic electroluminescence display |
| CN101447506A (en) * | 2007-08-17 | 2009-06-03 | 索尼株式会社 | Display device |
| CN109148724A (en) * | 2018-08-30 | 2019-01-04 | 上海天马微电子有限公司 | Display device and organic light emitting display panel |
| CN112447931A (en) * | 2020-11-20 | 2021-03-05 | 厦门天马微电子有限公司 | Display panel and display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6833667B2 (en) * | 2002-02-27 | 2004-12-21 | Matsushita Electric Industrial Co., Ltd. | Organic electroluminescence element and image forming apparatus or portable terminal unit using thereof |
-
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1607879A (en) * | 2003-08-28 | 2005-04-20 | 三星Sdi株式会社 | Organic electroluminescence display |
| CN101447506A (en) * | 2007-08-17 | 2009-06-03 | 索尼株式会社 | Display device |
| CN109148724A (en) * | 2018-08-30 | 2019-01-04 | 上海天马微电子有限公司 | Display device and organic light emitting display panel |
| CN112447931A (en) * | 2020-11-20 | 2021-03-05 | 厦门天马微电子有限公司 | Display panel and display device |
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