CN114122290A

CN114122290A - OLED display panel and OLED display device

Info

Publication number: CN114122290A
Application number: CN202111347618.1A
Authority: CN
Inventors: 周阳
Original assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Current assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-03-01
Anticipated expiration: 2041-11-15
Also published as: CN114122290B

Abstract

The application provides an OLED display panel and an OLED display device; the OLED display panel comprises a substrate, a driving circuit layer, a planarization layer and a light-emitting functional layer, wherein the OLED display panel comprises a light-emitting area and an electronic element setting area located between the light-emitting areas, a via hole is formed in the whole of the planarization layer and a pixel definition layer and at least one of the driving circuit layer, filling materials are arranged in the via hole, and the filling materials are used for enabling light rays to be converged when the light rays are transmitted to the driving circuit layer from the pixel definition layer. This application is through forming the via hole on at least one in whole and the drive circuit layer on the planarization layer and the pixel definition layer in electronic component setting area to set up filler material in the via hole, make filler material can assemble the light that transmits to the drive circuit layer from pixel definition layer, thereby avoid light scattering and reflection to appear, improve the transmissivity of light in OLED display panel, make electronic component receive sufficient light, electronic component normally works.

Description

OLED display panel and OLED display device

Technical Field

The application relates to the technical field of display, in particular to an OLED display panel and an OLED display device.

Background

OLED (Organic Light-Emitting Diode) display devices are widely used due to their advantages of self-luminescence, realization of flexibility, and the like. The existing display device can set the sensing device below the display screen in order to improve the screen occupation ratio, but because in the design of the existing display device, external light needs to pass through a film layer with a high refractive index first when entering the OLED display device and then reaches the film layer with a low refractive index, so that the light can be totally reflected, and scattering can occur to partial light, thereby the sensing device cannot acquire sufficient light, and the sensing device cannot normally work.

Therefore, the existing OLED display device has the technical problem that the sensing device cannot work normally due to total reflection and refraction of external light.

Disclosure of Invention

The embodiment of the application provides an OLED display panel for alleviate the technical problem that the existing OLED display device has devices which can not work normally due to the fact that external light is totally reflected and refracted.

The embodiment of the present application provides an OLED display panel, which includes:

a substrate;

the driving circuit layer is arranged on one side of the substrate;

the planarization layer is arranged on one side, away from the substrate, of the driving circuit layer;

the light-emitting functional layer is arranged on one side, away from the driving circuit layer, of the planarization layer and comprises a pixel defining layer;

the OLED display panel comprises light emitting areas and electronic element arrangement areas located between the light emitting areas, wherein in the electronic element arrangement areas, a through hole is formed in at least one of the whole body of the planarization layer and the pixel definition layer and the driving circuit layer, and filling materials are arranged in the through hole and used for enabling light rays to be converged when the light rays are transmitted from the pixel definition layer to the driving circuit layer.

In some embodiments, the via hole penetrates through the pixel defining layer and the planarization layer, one end of the filling material is in contact with the driving circuit layer, and the other end of the filling material is located on the same plane as the pixel defining layer.

In some embodiments, the filler material has a refractive index less than a refractive index of the driver circuit layer.

In some embodiments, the via hole penetrates through the driving circuit layer, one end of the filling material is in contact with the planarization layer, and the other end of the filling material is in contact with the substrate.

In some embodiments, the filler material has a refractive index greater than a refractive index of the planarization layer.

In some embodiments, the via hole includes a first via hole and a second via hole, the first via hole and the second via hole are sequentially disposed in a light incident direction of light, the filling material includes a first filling material and a second filling material, the first filling material is disposed in the first via hole, the second filling material is disposed in the second via hole, and a refractive index of the first filling material is smaller than a refractive index of the second filling material.

In some embodiments, the first via hole penetrates the pixel defining layer and the planarization layer, and the second via hole penetrates the driving circuit layer.

In some embodiments, the first via hole is disposed in the pixel defining layer, the second via hole is disposed in the planarization layer, one end of the first filling material is in contact with the second filling material, the other end of the first filling material is in the same plane as the pixel defining layer, and the other end of the second filling material is in contact with the driving circuit layer.

In some embodiments, the first via hole is disposed on the pixel defining layer and extends to the planarization layer, and the second via hole is disposed on the planarization layer and extends to the driving circuit layer.

Meanwhile, an embodiment of the present application provides an OLED display device, which includes an OLED display panel and an electronic component, where the OLED display panel includes:

a substrate;

the driving circuit layer is arranged on one side of the substrate;

Has the advantages that: the application provides an OLED display panel and an OLED display device; the OLED display panel comprises a substrate, a driving circuit layer, a planarization layer and a light-emitting functional layer, wherein the driving circuit layer is arranged on one side of the substrate, the planarization layer is arranged on one side, far away from the substrate, of the driving circuit layer, the light-emitting functional layer is arranged on one side, far away from the driving circuit layer, of the planarization layer, the light-emitting functional layer comprises a pixel definition layer, the OLED display panel comprises a light-emitting area and an electronic element setting area located between the light-emitting areas, a through hole is formed in the whole of the planarization layer and the pixel definition layer and at least one of the driving circuit layer, a filling material is arranged in the through hole, and the filling material is used for enabling light to be converged when the light is transmitted to the driving circuit layer from the pixel definition layer. This application is through forming the via hole on at least one in whole and the drive circuit layer on the planarization layer and the pixel definition layer in electronic component setting area to set up filler material in the via hole, make filler material can assemble the light that transmits to the drive circuit layer from pixel definition layer, thereby avoid light scattering and reflection to appear, improve the transmissivity of light in OLED display panel, make electronic component receive sufficient light, electronic component normally works.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic view of a current OLED display device.

Fig. 2 is a first schematic view of an OLED display panel according to an embodiment of the present disclosure.

Fig. 3 is a second schematic view of an OLED display panel according to an embodiment of the present disclosure.

Fig. 4 is a third schematic view of an OLED display panel according to an embodiment of the present disclosure.

Fig. 5 is a fourth schematic view of an OLED display panel according to an embodiment of the present application.

Fig. 6 is a fifth schematic view of an OLED display panel according to an embodiment of the present disclosure.

Fig. 7 is a sixth schematic view of an OLED display panel according to an embodiment of the present disclosure.

Fig. 8 is a seventh schematic view of an OLED display panel according to an embodiment of the present disclosure.

Fig. 9 is an eighth schematic view of an OLED display panel according to an embodiment of the present application.

Fig. 10 is a ninth schematic view of an OLED display panel according to an embodiment of the present application.

Fig. 11 is a tenth schematic view of an OLED display panel according to an embodiment of the present application.

Fig. 12 is a schematic view of an OLED display device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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 application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

As shown in fig. 1, the current OLED display panel includes a substrate 11, a driving circuit layer 12, a planarization layer 13, and a light emitting function layer 14, where the driving circuit layer 12 includes a barrier layer 121, a buffer layer 122, an active layer 123, a first gate insulating layer 124, a first metal layer 125, a second gate insulating layer 126, a second metal layer 127, an interlayer insulating layer 128, and a source drain layer 129, the light emitting function layer 14 includes a pixel electrode layer 141 and a pixel defining layer 142, and in order to increase a screen occupation ratio of the OLED display panel, an induction device is disposed under the OLED display panel, the OLED display panel includes a light emitting region 151 and an induction device disposing region 152, but due to different refractive indexes of the layers of the OLED display panel, when the light 16 is incident from the pixel defining layer 142, the light 16 first passes through the high refractive index film layer to reach the low refractive index film layer to be scattered and totally reflected (total reflection is not shown in the figure), the OLED display device has the advantages that certain loss exists when light rays are emitted out of the OLED display panel, and partial light rays are diffused to the light emitting area from the setting area of the sensing device, so that the light rays reaching the sensing device are excessively lost, the sensing device cannot normally work, and the technical problem that the sensing device cannot normally work due to the fact that the external light rays are totally reflected and refracted exists in the conventional OLED display device is solved.

In view of the above technical problems, embodiments of the present application provide an OLED display panel and an OLED display device to alleviate the above problems.

As shown in fig. 2, an embodiment of the present application provides an OLED display panel, where the OLED display panel 2 includes:

a substrate 21;

a driver circuit layer 22 provided on one side of the substrate 21;

a planarization layer 23 disposed on a side of the driving circuit layer 22 away from the substrate 21;

a light-emitting functional layer 24 disposed on a side of the planarization layer 23 away from the driving circuit layer 22, wherein the light-emitting functional layer 24 includes a pixel defining layer 242;

the OLED display panel 2 includes light emitting regions 251 and electronic element disposing regions 252 located between the light emitting regions 251, in the electronic element disposing regions 252, a via hole is formed in at least one of the whole of the planarization layer 23 and the pixel defining layer 242 and the driving circuit layer 22, a filling material 26 is disposed in the via hole, and the filling material 26 is used for converging light when the light is transmitted from the pixel defining layer 242 to the driving circuit layer 22.

The embodiment of the application provides an OLED display panel, this OLED display panel forms the via hole through at least one in planarization layer and the whole of pixel definition layer and the drive circuit layer in the electronic component setting area, and set up filler material in the via hole, make filler material can assemble the light that transmits to the drive circuit layer from pixel definition layer, thereby avoid scattering and reflection to appear in light, improve the transmissivity of light in OLED display panel, make electronic component receive sufficient light, electronic component normally works.

It should be noted that, in fig. 2 to 8 of the embodiment of the present application, since the filling material is disposed in the via hole, the via hole is not shown in fig. 2 to 8, and the position where the filling material is disposed is the position of the via hole.

It should be noted that, in the embodiment of the present application, considering that in the current OLED display panel, the refractive indexes of the materials used for the planarization layer and the pixel defining layer are similar, even the materials used for the planarization layer and the pixel defining layer are the same, so that the planarization layer and the pixel defining layer are taken as a whole to change the emission angle and the emission effect of light, but for the case that the refractive indexes of the planarization layer and the pixel defining layer are different from each other or are larger, the inventive concept of the embodiment of the present application may be used to correspondingly design the planarization layer and the pixel defining layer, and details are not repeated here.

In one embodiment, as shown in fig. 2, the via hole penetrates through the pixel defining layer 242 and the planarization layer 23, one end of the filling material 26 is in contact with the driving circuit layer 22, and the other end of the filling material 26 is located on the same plane as the pixel defining layer 242. Through penetrating the via hole through the pixel defining layer and the planarization layer, when light passes through the pixel defining layer and the planarization layer, the light can be emitted along the filling material, and scattering and total reflection can not occur on the driving circuit layer after the light passes through the pixel defining layer and the planarization layer, so that the transmittance of the light is increased, reflection and scattering are reduced, and the transmittance of the light in the electronic element arrangement area is improved.

Specifically, only via holes are formed in the pixel defining layer and the planarization layer, and filling materials are arranged in the via holes, so that the design method is simple, the driving circuit layer and the substrate cannot be damaged, and the capability of blocking water and oxygen of the OLED display panel is prevented from being reduced.

The problem of total reflection and refraction of light rays is caused by the fact that the light rays are from high refractive index to low refractive index. In one embodiment, the refractive index of the filling material is smaller than the refractive index of the driving circuit layer. When the filling material is arranged in the via holes of the pixel definition layer and the planarization layer, external light can sequentially pass through the filling material, the driving circuit layer and the substrate, and the refractive index of the filling material is smaller than that of the driving circuit layer, so that the light is converged after passing through the filling material and the driving circuit layer, total reflection and refraction of the light are avoided, the refractive index of the substrate is higher than that of the driving circuit layer, the light is further converged, the light can be converged in the electronic element setting area, and the transmittance of the light is improved.

In one embodiment, as shown in fig. 3, the via hole penetrates through the driving circuit layer 22, one end of the filling material 26 is in contact with the planarization layer 23, and the other end of the filling material 26 is in contact with the substrate 21. Through setting up the via hole at the drive circuit layer for light jets out to the substrate through filler after pixel definition layer and flat layer, and filler can assemble light, reduces the total reflection and the scattering of light, thereby improves the transmissivity of light.

Specifically, as shown in fig. 3, in the electronic element disposing region 252, the driving circuit layer 22 includes a blocking layer 221, a buffer layer 222, a first gate insulating layer 224, a second gate insulating layer 226 and an interlayer insulating layer 228, a via hole penetrates through the blocking layer, the buffer layer, the first gate insulating layer, the second gate insulating layer and the interlayer insulating layer, a corresponding filling material is disposed in the via hole, and light passes through the pixel defining layer and the planarization layer, reaches the filling material, and then passes through the substrate from the filling material.

In one embodiment, the filler material has a refractive index greater than a refractive index of the planarization layer. By making the refractive index of the filling material larger than that of the planarization layer, when light passes through the pixel defining layer and the planarization layer to reach the filling material, reflection of the light is reduced, and the light is converged, so that the light transmittance of the electronic element setting area is improved, and the electronic element can normally work.

Specifically, when the refractive index of the filling material is greater than that of the planarization layer, in the OLED display panel, because the refractive index of the planarization layer is greater than that of the substrate, when light reaches the substrate through the filling material, the problem that light reaches the low refractive index from the high refractive index can be presented, but because light has already passed through other film layers of the OLED display panel, only the electronic element can be reached by passing through the substrate, and light has already passed through the convergence of a long distance in the filling material, so that the light quantity is large, even if certain loss exists when passing through the substrate, the light transmittance is still higher than that of the current OLED display panel, and the light transmittance of the electronic element setting area of the OLED display panel is improved.

For the problem that may exist in this embodiment, on the basis of this embodiment, by designing the substrate layer, the via may specifically extend to the substrate, or a via is additionally formed in the substrate, and a material having a refractive index greater than that of the filler material is filled in the via of the substrate, so that when light passes through the OLED display panel, the light always enters the high refractive index from the low refractive index, thereby reducing reflection of the light and improving light transmittance of the light, and the specific arrangement manner is described in detail in the following embodiments.

In an embodiment, as shown in fig. 4, the via hole includes a first via hole and a second via hole, the first via hole and the second via hole are sequentially disposed in the light incident direction of the light, the filling material 26 includes a first filling material 261 and a second filling material 262, the first filling material 261 is disposed in the first via hole, the second filling material 262 is disposed in the second via hole, and a refractive index of the first filling material 261 is smaller than a refractive index of the second filling material 262. Through dividing the via hole into first via hole and second via hole to set up first filler material in first via hole, pack the second filler material in the second via hole, make the refracting index of first filler material be less than the refracting index of second filler material, then can change the refracting index of each rete through first filler material and second filler material, make light can follow low refracting index and to high refractive index transmission, thereby appear total reflection and scattering when avoiding light to pass OLED display panel, improve OLED display panel's luminousness.

In one embodiment, as shown in fig. 4, the first via hole penetrates through the pixel defining layer 242 and the planarization layer 23, and the second via hole penetrates through the driving circuit layer 22. The first via hole penetrates through the pixel defining layer and the planarization layer, the second via hole penetrates through the driving circuit layer, light can firstly pass through the first filling material and then pass through the second filling material, and the light can be emitted to a high refractive index from the bottom refractive index due to the fact that the refractive index of the first filling material is smaller than that of the second filling material, so that reflection of the light is reduced, the light is converged, and the transmittance of the light is improved.

Specifically, in this embodiment, the refractive index of the second filling material may be smaller than or equal to the refractive index of the substrate, and the refractive index of the second filling material may be larger than the refractive index of the substrate, and for the case where the refractive index of the second filling material is smaller than or equal to the refractive index of the substrate, the light ray always keeps from the low refractive index to the high refractive index from the first filling material to the second filling material to the substrate, so that reflection and scattering of light can be avoided, the light ray can be converged, and the transmittance of the light ray can be improved. For the case that the refractive index of the second filling material is larger than the refractive index of the substrate, the substrate can be designed by the following method in addition to the solution of not designing the substrate described in the above embodiment.

Specifically, the second via hole may extend to the substrate, that is, the first via hole penetrates through the pixel defining layer and the planarization layer, and the second via hole penetrates through the driving circuit layer and the substrate, so that light is emitted to the electronic element along the first filling material and the second filling material, and thus the light is emitted from a low refractive index to a high refractive index, and the transmittance of the light is improved.

Specifically, the substrate may be dug and filled with a material. Namely, the via hole further comprises a third via hole penetrating through the substrate, the filling material further comprises a third filling material, the third filling material is filled into the third via hole, and the refractive index of the third filling material is greater than that of the second filling material. Through making the substrate form the third via hole to pack the third filler material in the third via hole, make light pass first filler material, second filler material and third filler material in proper order, make light keep always launching the high refractive index from low refractivity, thereby reduce the reflection of light, improve the transmissivity of light.

In one embodiment, as shown in fig. 5, the first via is disposed on the pixel defining layer 242, the second via is disposed on the planarization layer 23, one end of the first filling material 261 is in contact with the second filling material 262, the other end of the first filling material 261 is in the same plane as the pixel defining layer 242, and the other end of the second filling material 262 is in contact with the driving circuit layer 22. Through forming the via hole at pixel definition layer and planarization layer respectively, increase the aperture of via hole, increase the income light volume of light, simultaneously, through the refracting index of first filler material and second filler material adjustment light film layer that passes through, make light when passing OLED display panel, keep from low refractive index directive high refractive index, reduce the reflection of light, improve the transmissivity of light.

Specifically, when the first filling material and the second filling material are respectively filled into the first via hole and the second via hole, the refractive index of the second filling material is smaller than or equal to the refractive index of the driving circuit layer, and the refractive index of the second filling material is larger than the refractive index of the driving circuit layer, as in the above embodiment, when the refractive index of the second filling material is smaller than or equal to the refractive index of the driving circuit layer, the light will remain from the low refractive index to the refractive index, so that the reflection of the light is reduced, the light is converged rather than scattered, and the transmittance of the light is improved; when the refractive index of the second filling material is greater than the refractive index of the driving circuit layer, the driving circuit layer and/or the substrate may be designed accordingly, and a design method similar to that described in the above embodiments may be specifically adopted, which is not described herein again.

In one embodiment, as shown in fig. 6, the first via hole is disposed on the pixel defining layer 242 and extends to the planarization layer 23, the second via hole is disposed on the planarization layer 23 and extends to the driving circuit layer 22, and the first filling material 261 is in contact with the second filling material 262. The first via hole is arranged on the pixel defining layer and extends to the planarization layer, and the second via hole is arranged on the planarization layer and extends to the driving circuit layer, so that light can be converged under the action of the first filling material and the second filling material, and the transmittance of the light is improved.

Specifically, the refractive index of the first filling material is greater than that of the pixel defining layer, and the refractive index of the second filling material is less than that of the driving circuit layer. Through making light pass through pixel definition layer, first filler material, second filler material and drive circuit layer, light is from the rete of low refractive index directive high refractive index all the time to avoid light to take place the reflection, improve the transmissivity of light.

In one embodiment, the shape of the cross section of the via hole comprises at least one of a rectangle and an inverted trapezoid. When the via holes are arranged, the shapes of the via holes can be designed according to requirements.

Specifically, as shown in fig. 6, the cross sections of the first via and the second via are both designed to be inverted trapezoidal, as shown in fig. 7, the cross section of the first via is designed to be inverted trapezoidal, and the cross section of the second via is designed to be rectangular, as shown in fig. 8, the cross sections of the first via and the second via are both designed to be rectangular.

According to the embodiment of the application, the refractive indexes of the current pixel definition layer and the planarization layer are higher than that of the driving circuit layer, light rays can be emitted from the high refractive index to the low refractive index, and the problems of total reflection and refraction of the light rays are caused.

In the embodiment of the application, the arrangement position of the via hole is not limited, and the via hole is arranged according to the position of the electronic element arrangement area. Specifically, as shown in fig. 9 to 11, the via hole 27 may be disposed between adjacent diagonally positioned pixels; or vias 27 are disposed between laterally disposed adjacent pixels; or the via 27 is disposed between adjacent pixels arranged in the longitudinal direction.

In one embodiment, in the entirety of the pixel defining layer and the planarizing layer through which light passes, the driver circuit layer, and the substrate, whether or not the via hole is formed, and the filler material is provided in the via hole, the square of the refractive index of the material through which light passes through the driver circuit layer may be equal to the square of the refractive index of the material through which light passes through the entirety of the pixel defining layer and the planarizing layer multiplied by the square of the refractive index of the material through which light passes through the substrate.

In one embodiment, the filler material comprises a nano zirconia gel material.

In one embodiment, as shown in fig. 2, the driving circuit layer 22 further includes an active layer 223, a first metal layer 225, a second metal layer 227, and a source drain layer 229.

In one embodiment, as shown in fig. 2, the light-emitting function layer 24 further includes a pixel electrode layer 241.

Meanwhile, as shown in fig. 12, an embodiment of the present application provides an OLED display device including an OLED display panel and an electronic element 41, the OLED display panel including:

a substrate 21;

a driver circuit layer 22 provided on one side of the substrate 21;

The embodiment of the application provides an OLED display device, this OLED display device includes OLED display panel and electronic component, this OLED display panel sets up the planarization layer in the district through at the electronic component and pixel definition layer wholly with form the via hole in at least one in the drive circuit layer, and set up filler material in the via hole, make filler material can assemble the light that transmits to the drive circuit layer from pixel definition layer, thereby avoid light scattering and reflection to appear, improve the transmissivity of light in OLED display panel, make electronic component receive sufficient light, electronic component normally works.

According to the above embodiments:

the embodiment of the application provides an OLED display panel and OLED display device, this OLED display panel includes the substrate, the drive circuit layer, planarization layer and luminous functional layer, the drive circuit layer sets up in substrate one side, the planarization layer sets up in the one side that the substrate was kept away from on the drive circuit layer, luminous functional layer sets up in the one side that the drive circuit layer was kept away from on the planarization layer, luminous functional layer includes the pixel definition layer, wherein, OLED display panel includes the luminous area and is located the electronic component setting area between the luminous area, at the electronic component setting area, at least one in planarization layer and the pixel definition layer wholly and the drive circuit layer is formed with the via hole, be equipped with filler material in the via hole, filler material takes place to assemble when being used for making light pass from the pixel definition layer to the drive circuit layer. This application is through forming the via hole on at least one in whole and the drive circuit layer on the planarization layer and the pixel definition layer in electronic component setting area to set up filler material in the via hole, make filler material can assemble the light that transmits to the drive circuit layer from pixel definition layer, thereby avoid light scattering and reflection to appear, improve the transmissivity of light in OLED display panel, make electronic component receive sufficient light, electronic component normally works.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The OLED display panel and the OLED display device provided in the embodiments of the present application are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present application, and the description of the embodiments above is only used to help understand the technical solutions and core ideas of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims

1. An OLED display panel, comprising:

a substrate;

the driving circuit layer is arranged on one side of the substrate;

2. The OLED display panel according to claim 1, wherein the via hole penetrates the pixel defining layer and the planarization layer, one end of the filling material is in contact with the driving circuit layer, and the other end of the filling material is in the same plane as the pixel defining layer.

3. The OLED display panel of claim 2, wherein the filler material has a refractive index less than a refractive index of the driving circuit layer.

4. The OLED display panel of claim 1, wherein the via extends through the driving circuit layer, one end of the filling material is in contact with the planarization layer, and the other end of the filling material is in contact with the substrate.

5. The OLED display panel of claim 4, wherein the filler material has a refractive index greater than a refractive index of the planarization layer.

6. The OLED display panel of claim 1, wherein the via holes comprise a first via hole and a second via hole, the first via hole and the second via hole are sequentially disposed in a light incident direction of light, the filling material comprises a first filling material and a second filling material, the first filling material is disposed in the first via hole, the second filling material is disposed in the second via hole, and a refractive index of the first filling material is smaller than a refractive index of the second filling material.

7. The OLED display panel of claim 6, wherein the first via extends through the pixel defining layer and the planarization layer, and the second via extends through the driving circuit layer.

8. The OLED display panel of claim 6, wherein the first via hole is disposed on the pixel defining layer, the second via hole is disposed on the planarization layer, one end of the first filling material is in contact with the second filling material, the other end of the first filling material is in the same plane as the pixel defining layer, and the other end of the second filling material is in contact with the driving circuit layer.

9. The OLED display panel of claim 6, wherein the first via is disposed on the pixel defining layer and extends to the planarization layer, and the second via is disposed on the planarization layer and extends to the driving circuit layer.

10. An OLED display device comprising an OLED display panel and an electronic component, the OLED display panel comprising:

a substrate;

the driving circuit layer is arranged on one side of the substrate;