WO2021027101A1 - 显示面板和显示装置 - Google Patents

显示面板和显示装置 Download PDF

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Publication number
WO2021027101A1
WO2021027101A1 PCT/CN2019/115877 CN2019115877W WO2021027101A1 WO 2021027101 A1 WO2021027101 A1 WO 2021027101A1 CN 2019115877 W CN2019115877 W CN 2019115877W WO 2021027101 A1 WO2021027101 A1 WO 2021027101A1
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WO
WIPO (PCT)
Prior art keywords
layer
hole
light
display panel
area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/115877
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English (en)
French (fr)
Inventor
赵瑾荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to US16/622,848 priority Critical patent/US11069760B2/en
Publication of WO2021027101A1 publication Critical patent/WO2021027101A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED

Definitions

  • This application relates to the field of display technology, and in particular to a display panel and a display device.
  • the flexible display screen is turned off.
  • the flexible display The sensor is set on the back of the display.
  • the existing flexible display screen includes a substrate, a barrier layer, a buffer layer, an active layer, a first gate insulating layer, a first metal layer, a second gate insulating layer, a second metal layer, Interlayer insulating layer, source and drain layer, planarization layer, anode layer, pixel definition layer, gap column, light-emitting layer, cathode layer and encapsulation layer, the sensor is set on the back of the flexible display screen, and the light transmitted from the encapsulation layer is in the inorganic film And the organic layer will be absorbed, reflected, refracted, scattered, etc., causing light loss, thereby affecting the performance of the sensor.
  • the existing flexible display screen has a technical problem of poor light transmission performance.
  • the present application provides a display panel and a display device, which are used to solve the technical problem of poor light transmission performance of the existing flexible display screen.
  • the present application provides a display panel, which includes:
  • the driving circuit layer is arranged on the substrate;
  • a planarization layer disposed on the driving circuit layer
  • the pixel electrode layer is arranged on the planarization layer
  • the pixel definition layer defines a light-emitting area and is arranged on the pixel electrode layer
  • the light-emitting material layer is arranged in the light-emitting area defined by the pixel definition layer;
  • the common electrode layer is arranged on the luminescent material layer
  • At least one of the driving circuit layer, the planarization layer, the pixel definition layer, and the common electrode layer is provided with a via hole in the electronic element installation area corresponding to the electronic element installation position.
  • the common electrode layer is provided with a first via hole in the electronic component installation area.
  • the first via hole penetrates the common electrode layer to form a first via hole.
  • the pixel definition layer is provided with a second via hole in the electronic component arrangement area.
  • the second via hole penetrates the pixel definition layer to form a second via hole.
  • the planarization layer is provided with a third via hole in the electronic component arrangement area.
  • the third via hole penetrates the planarization layer to form a third via hole.
  • the common electrode layer is provided with a first through hole in the electronic element installation area
  • the pixel definition layer is provided with a second through hole in the electronic element installation area
  • the chemical layer is provided with a third through hole in the electronic component installation area, and the projections of the first through hole, the second through hole and the third through hole on the substrate overlap.
  • the driving circuit layer is provided with a fourth through hole, and the projection of the first through hole, the second through hole, the third through hole, and the fourth through hole on the substrate There is overlap.
  • the cross-sectional area of the fourth through hole is greater than the cross-sectional area of the third through hole
  • the cross-sectional area of the third through hole is greater than the cross-sectional area of the second through hole
  • the cross-sectional area of the second through hole is larger than the cross-sectional area of the first through hole.
  • the encapsulation layer is filled into the first through hole, the second through hole, and the third through hole.
  • the material of the pixel definition layer includes a light-absorbing organic material.
  • the material of the planarization layer includes a light-absorbing organic material.
  • the display panel further includes a light-shielding layer disposed between the substrate and the drive circuit layer, and the light-shielding layer is provided with a second layer in the electronic component installation area. Five through holes.
  • the material of the light shielding layer includes a metal material.
  • the second display area is provided with a first pixel and a second pixel
  • the first pixel is provided with a via hole in the electronic component arrangement area
  • the second pixel is provided in the There is no via hole in the electronic component setting area.
  • the present application provides a display device, which includes a display panel and electronic components, and the display panel includes:
  • the driving circuit layer is arranged on the substrate;
  • a planarization layer disposed on the driving circuit layer
  • the pixel electrode layer is arranged on the planarization layer
  • the pixel definition layer defines a light-emitting area and is arranged on the pixel electrode layer
  • the light-emitting material layer is arranged in the light-emitting area defined by the pixel definition layer;
  • the common electrode layer is arranged on the luminescent material layer
  • At least one of the driving circuit layer, the planarization layer, the pixel definition layer, and the common electrode layer is provided with a via hole in the electronic element installation area corresponding to the electronic element installation position.
  • the electronic component includes a light sensor.
  • the light sensor is integrated under the substrate.
  • the common electrode layer is provided with a first through hole in the electronic element installation area
  • the pixel definition layer is provided with a second through hole in the electronic element installation area
  • the chemical layer is provided with a third through hole in the electronic component installation area, and the projections of the first through hole, the second through hole and the third through hole on the substrate overlap.
  • the present application provides a display panel and a display device.
  • the display panel includes a substrate, a driving circuit layer, a planarization layer, a pixel electrode layer, a pixel definition layer, a light-emitting material layer, and a common electrode layer.
  • the planarization layer is provided on the drive circuit layer
  • the pixel electrode layer is provided on the planarization layer
  • the pixel definition layer defines a light-emitting area and is provided on the pixel electrode layer
  • the light-emitting material layer is disposed on the light-emitting area defined by the pixel definition layer
  • the common electrode layer is disposed on the light-emitting material layer
  • the driving circuit layer, the planarization layer, the pixel definition layer and At least one layer of the common electrode layer is provided with a via hole in the electronic component installation area corresponding to the electronic component installation position; through the electronic component installation area corresponding to the electronic component installation position, the drive circuit layer, planarization layer, At least one of the pixel definition layer and the common electrode layer is provided with a via hole, so that when the external light passes through the display panel, it will not be interfered by the film layer with the via hole, and can directly pass through the film layer with the via hole.
  • the light transmittance is improved, and the technical problem of poor light
  • Figure 1 is a schematic diagram of an existing flexible foldable mobile phone
  • FIG. 2 is a first schematic diagram of a display panel provided by an embodiment of the application.
  • FIG. 3 is a second schematic diagram of a display panel provided by an embodiment of the application.
  • FIG. 4 is a third schematic diagram of a display panel provided by an embodiment of the application.
  • FIG. 5 is a fourth schematic diagram of a display panel provided by an embodiment of the application.
  • FIG. 6 is a fifth schematic diagram of a display panel provided by an embodiment of the application.
  • FIG. 7 is a schematic diagram of a display device provided by an embodiment of the application.
  • the present application addresses the technical problem of poor light transmittance in existing flexible display screens, and the embodiments of the present application are used to solve this problem.
  • the existing flexible foldable mobile phone includes a flexible display screen and a sensor 15.
  • the flexible display screen includes a substrate 111, a barrier layer 112, a buffer layer 113, an active layer 141, and a first gate insulating layer 114. , First metal layer 142, second gate insulating layer 115, second metal layer 143, interlayer insulating layer 116, source and drain layer 144, planarization layer 117, anode layer 121, pixel definition layer 122, gap pillar 125 , The light-emitting layer 123, the cathode layer 124 and the encapsulation layer 131.
  • the various film layers in the flexible display will interfere with the light, including absorbing light, reflecting light, refracting light, and scattering light Such phenomena make it difficult for light to reach the sensor, thereby affecting the performance of the sensor, that is, the existing flexible display screen has a technical problem of poor light transmission performance.
  • an embodiment of the present application provides a display panel, which includes:
  • the driving circuit layer 212 is disposed on the substrate 211;
  • the planarization layer 213 is disposed on the driving circuit layer 212;
  • the pixel electrode layer 214 is disposed on the planarization layer 213;
  • the pixel definition layer 215 defines a light-emitting area and is disposed on the pixel electrode layer 214;
  • the light-emitting material layer 216 is disposed in the light-emitting area defined by the pixel definition layer 215;
  • the common electrode layer 217 is disposed on the luminescent material layer 216;
  • At least one of the driving circuit layer 212, the planarization layer 213, the pixel definition layer 215, and the common electrode layer 217 is provided with a via 23 in the electronic element installation area 223 corresponding to the electronic element installation position.
  • An embodiment of the present application provides a display panel, which includes a substrate, a driving circuit layer, a planarization layer, a pixel electrode layer, a pixel definition layer, a luminescent material layer, and a common electrode layer.
  • the driving circuit layer is disposed on the On a substrate, the planarization layer is provided on the drive circuit layer, the pixel electrode layer is provided on the planarization layer, and the pixel definition layer defines a light-emitting area and is provided on the pixel electrode layer ,
  • the light-emitting material layer is disposed on the light-emitting area defined by the pixel definition layer, the common electrode layer is disposed on the light-emitting material layer, wherein the driving circuit layer, the planarization layer, the pixel definition layer and the common At least one of the electrode layers is provided with a via hole in the electronic component installation area corresponding to the electronic component installation position; through the electronic component installation area corresponding to the electronic component installation position, the drive circuit layer, the planarization layer, and the
  • the pixel includes a plurality of film layers, the pixel is not shown in FIG. 2, the light-emitting area is provided with a light-emitting material layer, and the light-emitting area is not shown in FIG. 2.
  • the display panel includes a first display area 211 and a second display area 222, and the second display area 222 includes an electronic component setting area 223.
  • the common electrode layer is provided with a first via hole in the electronic component installation area.
  • the first via hole in the electronic component installation area the light entering the display panel from the encapsulation layer passes through the common The electrode layer will not be reflected or absorbed by the common electrode layer, so that light can pass through the common electrode layer as much as possible, thereby improving the light transmittance and solving the technical problem of poor light transmittance in the existing flexible display screen.
  • the width of the first via hole is equal to or greater than the width of the electronic component placement area; the first via is formed in the electronic component placement area, and at the same time
  • the first via hole is prepared to have a width greater than the width of the electronic component arrangement area, so that the light reaching the electronic component through the common electrode layer can pass through the first via hole as much as possible, thereby reducing the loss of light being reflected and absorbed, thereby improving the display panel ⁇ Transmittance.
  • the first via hole penetrates the common electrode layer to form a first via hole, and the first via hole penetrates the common electrode layer, so that the light passes through the common electrode layer and passes through the first via hole.
  • the hole can be completely passed through without any loss.
  • the pixel definition layer is provided with a second via hole in the electronic component installation area, after the light passes through the common electrode layer, when the light passes through the pixel definition layer, the light passes through the second via hole to the electrons.
  • the component propagates, and the light propagates through the second via hole, and there is no major loss, so that the light passing through the pixel definition layer can be more completely transmitted, thereby increasing the light transmittance and solving the existing flexible display
  • the screen has a technical problem of poor light transmission performance.
  • the width of the second via hole is equal to or greater than the width of the electronic component arrangement area, and after the light passes through the common electrode layer, a larger incident angle may appear.
  • the width of the pixel definition layer can be set to be larger than the width of the electronic component setting area, so that the light entering the display panel can be better transmitted without being affected by the second via hole when passing through the second via hole.
  • the side blocking allows light to pass through the pixel definition layer more completely, improving the light transmission performance of the display panel.
  • the second via hole penetrates the pixel definition layer to form a second via hole, and the second via hole penetrates the pixel definition layer so that light can directly and completely pass through the pixel definition layer. There will be no loss such as absorption, thereby improving the light transmission performance of the pixel definition layer, thereby improving the light transmission performance of the display panel.
  • the planarization layer is provided with a third via hole in the electronic component installation area. After the light passes through the common electrode layer and the pixel definition layer, when the light passes through the planarization layer, the light passes through the The three vias pass through to avoid being refracted and absorbed by the planarization layer as much as possible, thereby improving the light transmission performance of the planarization layer, thereby improving the light transmission performance of the display panel.
  • the width of the third via hole is equal to or greater than the width of the electronic component arrangement area.
  • the light The angle may be larger than the electronic component installation area, and the width of the third via hole can be made equal to or greater than the width of the electronic component installation area, so that light can pass through the third via as much as possible, so as to avoid light in Loss of the planarization layer improves the light transmission performance of the display panel.
  • the third via hole penetrates the planarization layer to form a third via hole, and the third via hole penetrates to form a third through hole, so that light does not appear when passing through the planarization layer Loss, so that the light completely penetrates the planarization layer.
  • the driving circuit layer is provided with a fourth via hole in the electronic component installation area.
  • a fourth via hole may be formed on the driving circuit layer.
  • the fourth via hole can be arranged in the position avoiding the wiring when the fourth via hole is arranged, so as to make the light Through the fourth via hole, the light transmission performance of the driving circuit layer is improved, and the light transmission performance of the display panel is improved.
  • the width of the fourth via hole is greater than the width of the electronic component placement area, and the fourth via hole has no contact with the traces in the driving circuit layer.
  • the fourth through hole penetrates the driving circuit layer to form a fourth through hole, and the fourth through hole penetrates to form a fourth through hole, so that the light passing through the fourth through hole completely penetrates the driving circuit Layer to improve the light transmission performance of the drive circuit layer.
  • the common electrode layer 217 is provided with a first through hole 231 in the electronic element installation area 223, and the pixel definition layer 215 is provided in the electronic element installation area 223.
  • the planarization layer 213 is provided with a third through hole 233 in the electronic component installation area 223, and the first through hole 231, the second through hole 232 and the third through hole 233 are located in the The projections on the substrate 211 overlap; through holes are formed in the common electrode layer, the pixel definition layer, and the planarization layer, and the first, second, and third through holes overlap, so that The light can propagate to the electronic component through the first through hole, the second through hole, and the third through hole, so that the light does not appear to be lost when passing through the display panel, and the light transmission performance of the display panel is improved.
  • the driving circuit layer is provided with a fourth through hole, and the projections of the first through hole, the second through hole, the third through hole, and the fourth through hole on the substrate overlap .
  • the driving circuit layer includes a barrier layer, a buffer layer, a first gate insulating layer, a second gate insulating layer, and an interlayer insulating layer.
  • the barrier layer is provided with a fourth through hole
  • the buffer layer is provided with a fourth through hole
  • the first gate insulating layer is provided with a fourth through hole
  • the second gate insulating layer is provided with a fourth through hole
  • the A fourth through hole is formed on the interlayer insulating layer, or any two film layers in the drive circuit layer form a fourth through hole, or any three film layers in the drive circuit layer form a fourth through hole, or a fourth through hole is formed in the drive circuit layer.
  • any four film layers form the fourth through hole, or all film layers in the drive circuit layer form the fourth through hole.
  • light can pass through the drive circuit layer. At this time, try to avoid loss, so as to improve the light transmission performance of the display panel.
  • the cross-sectional area of the fourth through hole 234 is greater than the cross-sectional area of the third through hole 233, and the cross-sectional area of the third through hole 233 is greater than that of the second through hole 233.
  • the cross-sectional area of the through hole 232, and the cross-sectional area of the second through hole 232 is greater than the cross-sectional area of the first through hole 231, the cross-sectional area of the through hole is increased from the common electrode layer to the driving circuit layer, so that the light is in After a larger distance and a larger angle, it can still pass through the via hole, thereby avoiding light loss and improving the light transmission performance of the display panel.
  • the material of the pixel definition layer includes a light-absorbing organic material. Considering that the light emitted by the light-emitting layer is reflected upon the cathode layer, the light enters the pixel definition layer, which can make the material of the pixel definition layer In order to absorb light organic materials, so that light can only pass through the through holes of the pixel definition layer, but not through other areas, so as to prevent the light emitted by the light emitting layer from affecting the electronic components; at the same time, the pixel definition layer can avoid external light in other areas Affect electronic components.
  • the material of the planarization layer includes a light-absorbing organic material. Considering that light passes through the pixel definition layer, it will be refracted and scattered to the non-electronic component placement area in the planarization layer, and continue to propagate downward. Influencing the electronic components, the material of the planarization layer is set as a light-absorbing organic material, so that the light that does not enter through the through holes of the planarization layer is absorbed by the planarization layer, so as to prevent the light from interfering with the electronic components.
  • the common electrode layer 217 is provided with a first through hole 431 in the electronic element installation area 223, and the pixel definition layer 215 is provided with a second through hole 432 in the electronic element installation area 223.
  • the planarization layer 213 is provided with a third through hole 433 in the electronic component placement area 223, the common electrode layer 217 extends along the second through hole 432, and the extended portion of the common electrode layer 217 is connected to the The pixel definition layer 215 is arranged in close contact with each other.
  • the common electrode layer 217 extends along the third through hole 433, and the extended portion of the common electrode layer 217 is attached to the planarization layer 213, so that light After passing through the through holes of the pixel definition layer, light is prevented from being absorbed by the planarization layer, thereby avoiding light absorption and improving the light transmission performance of the display panel.
  • the encapsulation layer is filled into the first through hole, the second through hole, and the third through hole, and the encapsulation layer is filled into the first through hole, the second through hole, and the third through hole.
  • it further includes a light-shielding layer 54 disposed between the transmission 211 and the driving circuit layer, and the light-shielding layer 54 is disposed on the electronic component.
  • the area 233 is provided with a fifth through hole 541.
  • the driving circuit layer includes a barrier layer 2121, a buffer layer 2122, an active layer 2123, a first gate insulating layer 2124, a first gate 2125, and a second gate.
  • the material of the light-shielding layer includes a light-absorbing metal material.
  • a light-absorbing metal material When light is irradiated to the light-shielding layer, it will be absorbed and reflected by the light-shielding layer, so as to prevent the light from interfering with electronic components.
  • an embodiment of the present application provides a display panel.
  • the display panel includes a non-display area 61, a first display area 63, and a second display area 62.
  • the second display area 62 is provided with first pixels 631.
  • the second pixel 632, the first pixel 631 is provided with a via 633 in the electronic component installation area, and the second pixel 632 is not provided with a via in the electronic component installation area; considering the possibility of the electronic component installation area It will span multiple pixels.
  • the via holes can be arranged according to the arrangement of the pixels, and there is no need to set the via holes for each pixel. For example, in FIG.
  • the via holes are arranged in the area of the first pixel corresponding to the electronic component arrangement area.
  • the area of the two pixels corresponding to the electronic element arrangement area is not provided with vias, which makes it easier to implement in the process, and the vias will not have a major impact on the display; the actual vias are set or not set according to the arrangement density of the actual pixels.
  • an embodiment of the present application provides a display device.
  • the display device includes a display panel and an electronic component 75, and the display panel includes:
  • the driving circuit layer 212 is disposed on the substrate 211;
  • the planarization layer 213 is disposed on the driving circuit layer 212;
  • the pixel electrode layer 214 is disposed on the planarization layer 213;
  • the pixel definition layer 215 defines a light-emitting area and is disposed on the pixel electrode layer 214;
  • the light-emitting material layer 216 is disposed in the light-emitting area defined by the pixel definition layer 215;
  • the common electrode layer 217 is disposed on the luminescent material layer 216;
  • At least one of the driving circuit layer 212, the planarization layer 213, the pixel definition layer 215, and the common electrode layer 217 is provided with a via hole in the electronic element installation area 223 corresponding to the electronic element installation position.
  • the embodiment of the application provides a display device, the display device includes a display panel and an electronic element, the display panel includes a substrate, a driving circuit layer, a planarization layer, a pixel electrode layer, a pixel definition layer, a luminescent material layer, and a common electrode layer ,
  • the driving circuit layer is disposed on the substrate, the planarization layer is disposed on the driving circuit layer, the pixel electrode layer is disposed on the planarization layer, and the pixel definition layer defines light emission The area is arranged on the pixel electrode layer, the light-emitting material layer is arranged on the light-emitting area defined by the pixel definition layer, and the common electrode layer is arranged on the light-emitting material layer, wherein the driving circuit layer At least one of the planarization layer, the pixel definition layer and the common electrode layer is provided with a via hole in the electronic component installation area corresponding to the electronic component installation position; by placing the electronic component in the electronic component installation area corresponding to the electronic component installation position in the display panel
  • the electronic component is a light sensor; taking a foldable display device as an example, in order to realize that the foldable display device does not display when the foldable display device is folded, a light sensor is provided under the display panel. When entering the light sensor, close the display panel so that the display panel does not display. When the foldable display device is unfolded, the display panel is displayed. The light enters the light sensor through the display panel. Because the display panel has been installed in the area corresponding to the light sensor. The hole allows light to pass through the display panel as much as possible without loss in the display panel, so that the display panel can display and the foldable display device can display normally.
  • the size of the via hole can be made consistent with the size of the electronic component installation area, and the planarization layer and the pixel definition layer use light-absorbing organic materials.
  • the display panel can only display when light enters the electronic component setting area, and at the same time, when the light cannot enter the electronic component setting area, the display panel does not display.
  • the width of the via can be set to be greater than the width of the electronic component installation area. Since the electronic component installation is small, it can enter through both sides of the electronic component installation area when light does not enter the electronic component installation area. Thus, the display panel can be displayed or closed in advance.
  • the side surface of the fifth through hole is provided with a light reflecting member, so that when light is emitted from the side wall of the fifth through hole, it will be reflected by the light emitting member, so that the light will not be lost.
  • the light sensor is integrated under the substrate to reduce the thickness of the display device.
  • the electronic components in order to reduce the thickness of the display device, can be attached to the display panel so that the electronic components can be attached to the substrate of the display panel, or when the substrate is set, the A groove is arranged on the side away from the driving circuit layer, and the electronic components are arranged in the groove, thereby reducing the thickness of the display device.
  • the embodiments of the present application provide a display panel and a display device.
  • the display panel includes a substrate, a driving circuit layer, a planarization layer, a pixel electrode layer, a pixel definition layer, a luminescent material layer, and a common electrode layer.
  • the driving circuit layer is provided On the substrate, the planarization layer is disposed on the driving circuit layer, the pixel electrode layer is disposed on the planarization layer, and the pixel definition layer defines a light-emitting area, which is disposed on the pixel On the electrode layer, the luminescent material layer is disposed on the luminous area defined by the pixel definition layer, and the common electrode layer is disposed on the luminescent material layer, wherein the driving circuit layer, the planarization layer, and the pixel definition layer At least one of the layer and the common electrode layer is provided with a via hole in the electronic component installation area corresponding to the electronic component installation position; the driving circuit layer in the display panel is flattened by the electronic component installation area corresponding to the electronic component installation position At least one of the layer, the pixel definition layer and the common electrode layer is provided with a via hole so that the external light will not be interfered by the film layer with the via hole when passing through the display panel, and can directly pass through the film layer with the via hole Therefore, the light transmittance is improved

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种显示面板和显示装置，在对应电子元件设置位置的电子元件设置区（223），将显示面板中的驱动电路层（212）、平坦化层（213）、像素定义层（215）和公共电极层（217）中的至少一层设置过孔（23），使得外界光线在经过显示面板时，能直接透过设有过孔（23）的膜层，从而使得光线透过率提高，解决了现有的柔性显示屏存在透光性能较差的技术问题。

Description

显示面板和显示装置 技术领域
本申请涉及显示技术领域，尤其是涉及一种显示面板和显示装置。
 背景技术
现有柔性可折叠手机为了实现自动熄屏亮屏功能，使得柔性可折叠手机折叠不使用时，柔性显示屏熄屏，在柔性可折叠手机展开使用时，柔性显示屏亮屏工作，会在柔性显示屏背面设置传感器。
如图1所示，现有的柔性显示屏包括衬底、阻挡层、缓冲层、有源层、第一栅极绝缘层、第一金属层、第二栅极绝缘层、第二金属层、层间绝缘层、源漏极层、平坦化层、阳极层、像素定义层、间隙柱、发光层、阴极层和封装层，传感器设置柔性显示屏背面，从封装层外传输的光线在无机膜和有机层会发生被吸收、反射、折射、散射等现象，造成光线损失，从而影响到传感器的性能。
所以，现有的柔性显示屏存在透光性能较差的技术问题。
 技术问题
本申请提供一种显示面板和显示装置，用于解决现有的柔性显示屏存在透光性能较差的技术问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请提供一种显示面板，该显示面板包括：
衬底；
驱动电路层，设置在所述衬底上；
平坦化层，设置于所述驱动电路层上；
像素电极层，设置于所述平坦化层上；
像素定义层，定义出发光区域，设置于所述像素电极层上；
发光材料层，设置于所述像素定义层定义出的发光区域；
公共电极层，设置于所述发光材料层上；
其中，所述驱动电路层、平坦化层、像素定义层和公共电极层中的至少一层在对应电子元件设置位置的电子元件设置区设置有过孔。
在本申请提供的显示面板中，所述公共电极层在所述电子元件设置区设有第一过孔。
在本申请提供的显示面板中，所述第一过孔贯穿所述公共电极层形成第一通孔。
在本申请提供的显示面板中，所述像素定义层在所述电子元件设置区设有第二过孔。
在本申请提供的显示面板中，所述第二过孔贯穿所述像素定义层形成第二通孔。
在本申请提供的显示面板中，所述平坦化层在所述电子元件设置区设有第三过孔。
在本申请提供的显示面板中，所述第三过孔贯穿所述平坦化层形成第三通孔。
在本申请提供的显示面板中，所述公共电极层在所述电子元件设置区设有第一通孔，所述像素定义层在所述电子元件设置区设有第二通孔，所述平坦化层在所述电子元件设置区设有第三通孔，所述第一通孔、第二通孔和第三通孔在所述衬底上的投影存在重合。
在本申请提供的显示面板中，所述驱动电路层设有第四通孔，所述第一通孔、第二通孔、第三通孔、第四通孔在所述衬底上的投影存在重合。
在本申请提供的显示面板中，所述第四通孔的截面面积大于所述第三通孔的截面面积，所述第三通孔的截面面积大于所述第二通孔的截面面积，且所述第二通孔的截面面积大于所述第一通孔的截面面积。
在本申请提供的显示面板中，所述封装层填充至所述第一通孔、第二通孔和第三通孔。
在本申请提供的显示面板中，所述像素定义层的材料包括吸光有机材料。
在本申请提供的显示面板中，所述平坦化层的材料包括吸光有机材料。
在本申请提供的显示面板中，该显示面板还包括遮光层，所述遮光层设置于所述衬底与所述驱动电路层之间，所述遮光层在所述电子元件设置区设有第五通孔。
在本申请提供的显示面板中，所述遮光层的材料包括金属材料。
在本申请提供的显示面板中，所述第二显示区设有第一像素和第二像素，所述第一像素在所述电子元件设置区设置有过孔，所述第二像素在所述电子元件设置区未设置过孔。
同时，本申请提供一种显示装置，该显示装置包括显示面板和电子元件，所述显示面板包括：
衬底；
驱动电路层，设置在所述衬底上；
平坦化层，设置于所述驱动电路层上；
像素电极层，设置于所述平坦化层上；
像素定义层，定义出发光区域，设置于所述像素电极层上；
发光材料层，设置于所述像素定义层定义出的发光区域；
公共电极层，设置于所述发光材料层上；
其中，所述驱动电路层、平坦化层、像素定义层和公共电极层中的至少一层在对应电子元件设置位置的电子元件设置区设置有过孔。
在本申请提供的显示装置中，所述电子元件包括光线传感器。
在本申请提供的显示装置中，所述光线传感器集成在所述衬底下。
在本申请提供的显示装置中，所述公共电极层在所述电子元件设置区设有第一通孔，所述像素定义层在所述电子元件设置区设有第二通孔，所述平坦化层在所述电子元件设置区设有第三通孔，所述第一通孔、第二通孔和第三通孔在所述衬底上的投影存在重合。
 有益效果
本申请提供一种显示面板和显示装置，该显示面板包括衬底、驱动电路层、平坦化层、像素电极层、像素定义层、发光材料层和公共电极层，所述驱动电路层设置在所述衬底上，所述平坦化层设置于所述驱动电路层上，所述像素电极层设置于所述平坦化层上，所述像素定义层定义出发光区域，设置于所述像素电极层上，所述发光材料层设置于所述像素定义层定义出的发光区域，所述公共电极层设置于所述发光材料层上，其中，所述驱动电路层、平坦化层、像素定义层和公共电极层中的至少一层在对应电子元件设置位置的电子元件设置区设置有过孔；通过在对应电子元件设置位置的电子元件设置区，将显示面板中的驱动电路层、平坦化层、像素定义层和公共电极层中的至少一层设置过孔，使得外界光线在经过显示面板时，不会被设有过孔的膜层干扰，能直接透过设有过孔的膜层，从而使得光线透过率提高，解决了现有的柔性显示屏存在透光性能较差的技术问题。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有柔性可折叠手机示意图；
图2为本申请实施例提供的显示面板的第一示意图；
图3为本申请实施例提供的显示面板的第二示意图；
图4为本申请实施例提供的显示面板的第三示意图；
图5为本申请实施例提供的显示面板的第四示意图；
图6为本申请实施例提供的显示面板的第五示意图；
图7为本申请实施例提供的显示装置的示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。
本申请针对现有的柔性显示屏存在透光性能较差的技术问题，本申请实施例用以解决该问题。
如图1所示，现有柔性可折叠手机包括柔性显示屏和传感器15，所述柔性显示屏包括衬底111、阻挡层112、缓冲层113、有源层141、第一栅极绝缘层114、第一金属层142、第二栅极绝缘层115、第二金属层143、层间绝缘层116、源漏极层144、平坦化层117、阳极层121、像素定义层122、间隙柱125、发光层123、阴极层124和封装层131，在光线从外界传递到柔性显示屏时，柔性显示屏中的各个膜层会对光线产生干扰，包括吸收光线、反射光线、折射光线、散射光线等现象，使得光线难以到达传感器，从而影响到传感器的性能，即现有的柔性显示屏存在透光性能较差的技术问题。
如图2所示，本申请实施例提供一种显示面板，该显示面板包括：
衬底211；
驱动电路层212，设置在所述衬底211上；
平坦化层213，设置于所述驱动电路层212上；
像素电极层214，设置于所述平坦化层213上；
像素定义层215，定义出发光区域，设置于所述像素电极层214上；
发光材料层216，设置于所述像素定义层215定义出的发光区域；
公共电极层217，设置于所述发光材料层216上；
其中，所述驱动电路层212、平坦化层213、像素定义层215和公共电极层217中的至少一层在对应电子元件设置位置的电子元件设置区223设置有过孔23。
本申请实施例提供一种显示面板，该显示面板包括衬底、驱动电路层、平坦化层、像素电极层、像素定义层、发光材料层和公共电极层，所述驱动电路层设置在所述衬底上，所述平坦化层设置于所述驱动电路层上，所述像素电极层设置于所述平坦化层上，所述像素定义层定义出发光区域，设置于所述像素电极层上，所述发光材料层设置于所述像素定义层定义出的发光区域，所述公共电极层设置于所述发光材料层上，其中，所述驱动电路层、平坦化层、像素定义层和公共电极层中的至少一层在对应电子元件设置位置的电子元件设置区设置有过孔；通过在对应电子元件设置位置的电子元件设置区，将显示面板中的驱动电路层、平坦化层、像素定义层和公共电极层中的至少一层设置过孔，使得外界光线在经过显示面板时，不会被设有过孔的膜层干扰，能直接透过设有过孔的膜层，从而使得光线透过率提高，解决了现有的柔性显示屏存在透光性能较差的技术问题。
需要说明的是，像素包括多个膜层，图2中未标示出像素，发光区域设有发光材料层，图2中未标示出发光区域。
在一种实施例中，如图2所示，所述显示面板包括第一显示区211和第二显示区222，所述第二显示区222包括电子元件设置区223。
在一种实施例中，所述公共电极层在所述电子元件设置区设有第一过孔，通过在电子元件设置区设置第一过孔，使得由封装层进入显示面板的光线在经过公共电极层时不会被公共电极层反射或者吸收，从而使得光线能尽量透过公共电极层，从而提高了光线的透过率，解决了现有柔性显示屏存在透光性能较差的技术问题。
在一种实施例中，在所述公共电极层中，所述第一过孔的宽度等于或者大于所述电子元件设置区的宽度；使第一过孔形成于电子元件设置区，同时可将第一过孔制备为宽度大于电子元件设置区宽度，使得经过公共电极层到达电子元件的光线能尽量从第一过孔中通过，从而减少光线出现被反射、被吸收的损失，进而提高显示面板的透光率。
在一种实施例中，所述第一过孔贯穿所述公共电极层形成第一通孔，使第一过孔贯穿所述公共电极层，从而使得光线在经过公共电极层，通过第一通孔时，能完全通过，不会出现任何的损失。
在一种实施例中，所述像素定义层在所述电子元件设置区设有第二过孔，在光线经过公共电极层后，在光线经过像素定义层时，光线通过第二过孔向电子元件传播，而光线在第二过孔在传播，不会出现较大的损失，使得通过像素定义层的光线能较为完整的透过，从而提高了光线的透过率，解决了现有柔性显示屏存在透光性能较差的技术问题。
在一种实施例中，在所述像素定义层中，所述第二过孔的宽度等于或者大于所述电子元件设置区的宽度，光线在经过公共电极层后，会出现入射角度较大的情况，可将像素定义层的宽度设置为比电子元件设置区的宽度大，使得进入显示面板的光线能较好的透过，而不会在经过第二过孔时，被第二过孔的侧面阻挡，使得光线能较完整的透过像素定义层，提高显示面板的透光性能。
在一种实施例中，所述第二过孔贯穿所述像素定义层形成第二通孔，将第二过孔贯穿像素定义层，使得光线在经过像素定义层时，能直接完整透过，不会出现吸收等损失，从而提高像素定义层的透光性能，进而提高显示面板的透光性能。
在一种实施例中，所述平坦化层在所述电子元件设置区设有第三过孔，在光线经过公共电极层和像素定义层后，在光线经过平坦化层时，使光线由第三过孔透过，尽量避免被平坦化层折射、吸收，从而提高了平坦化层的透光性能，进而提高显示面板的透光性能。
在一种实施例中，在所述平坦化层中，所述第三过孔的宽度等于或者大于所述电子元件设置区的宽度，在光线透过公共电极层和像素定义层后，光线的角度可能会出现大于所述电子元件设置区的情况，可使第三过孔的宽度等于或者大于所述电子元件设置区的宽度，使得光线能尽量从第三过孔透过，从而避免光线在平坦化层出现损失，提高显示面板的透光性能。
在一种实施例中，所述第三过孔贯穿所述平坦化层形成第三通孔，将第三过孔贯穿形成第三通孔，使得光线在透过平坦化层时，不会出现损失，从而使得光线完整透过平坦化层。
在一种实施例中，所述驱动电路层在所述电子元件设置区设有第四过孔，为了使光线较好的透过驱动电路层，可在驱动电路层上形成第四过孔，同时为了避免第四过孔对光线驱动电路层的走线产生影响，在设置第四过孔时可避开走线的位置设置第四过孔，从而在不影响驱动电路层的同时，使得光线从第四过孔透过，提高驱动电路层的透光性能，提高显示面板的透光性能。
在一种实施例中，在驱动电路层中，所述第四过孔的宽度大于所述电子元件设置区的宽度，且所述第四过孔与驱动电路层中的走线无接触，在设置第四过孔时，尽量使得第四过孔较大，但不影响驱动电路层的走线设置，使得光线尽量从第四过孔透过，从而提高驱动电路层的透光性能。
在一种实施例中，所述第四过孔贯穿所述驱动电路层形成第四通孔，将第四过孔贯穿形成第四通孔，使得经过第四通孔的光线完整透过驱动电路层，从而提高驱动电路层的透光性能。
在一种实施例中，如图2所示，所述公共电极层217在所述电子元件设置区223设有第一通孔231，所述像素定义层215在所述电子元件设置区223设有第二通孔232，所述平坦化层213在所述电子元件设置区223设有第三通孔233，所述第一通孔231、第二通孔232和第三通孔233在所述衬底211上的投影存在重合；通过在公共电极层、像素定义层和平坦化层分别形成通孔，且使得第一通孔、第二通孔、第三通孔存在重合部分，从而使得光线能通过第一通孔、第二通孔、第三通孔向电子元件传播，从而使得光线在经过显示面板时不出现损失，提高显示面板的透光性能。
在一种实施例中，所述驱动电路层设有第四通孔，所述第一通孔、第二通孔、第三通孔、第四通孔在所述衬底上的投影存在重合。
在一种实施例中，所述驱动电路层包括阻挡层、缓冲层、第一栅极绝缘层、第二栅极绝缘层和层间绝缘层，所述阻挡层上设有第四通孔、或者所述缓冲层上设有第四通孔、或者所述第一栅极绝缘层上设有第四通孔、或者所述第二栅极绝缘层上设有第四通孔、或者所述层间绝缘层上形成第四通孔，或者所述驱动电路层中的任意两膜层形成第四通孔、或者驱动电路层中的任意三膜层形成第四通孔、或者驱动电路层中任意四膜层形成第四通孔、或者驱动电路层中的所有膜层形成第四通孔，通过在驱动电路层中的任意膜层上形成过孔或者通孔，使得光线在经过驱动电路层时，尽量不出现损失，从而提高显示面板的透光性能。
在一种实施例中，如图3所示，所述第四通孔234的截面面积大于所述第三通孔233的截面面积，所述第三通孔233的截面面积大于所述第二通孔232的截面面积，且所述第二通孔232的截面面积大于所述第一通孔231的截面面积，从公共电极层至驱动电路层依此增大通孔的截面面积，使得光线在经过较大距离角度变大后，依然可以从过孔中透过，从而避免光线损失，提高显示面板的透光性能。
在一种实施例中，所述像素定义层的材料包括吸光有机材料，考虑到发光层发出的光照射到阴极层时会存在反射现象，使得光线进入像素定义层，可以使像素定义层的材料为吸光有机材料，使得光线只能从像素定义层的通孔透过，而不会从其他区域透过，避免发光层发出的光影响电子元件；同时，像素定义层可避免其他区域的外界光对电子元件产生影响。
在一种实施例中，所述平坦化层的材料包括吸光有机材料，考虑到光线透过像素定义层后，会出现折射和散射至平坦化层中非电子元件设置区，继续向下传播会影响到电子元件，将平坦化层的材料设置为吸光有机材料，使得不是从平坦化层的通孔进入的光线被平坦化层吸收，从而避免光线对电子元件产生干扰。
在一种实施例中，如图4所示，公共电极层217在电子元件设置区223设有第一通孔431，所述像素定义层215在电子元件设置区223设有第二通孔432，所述平坦化层213在电子元件设置区223设有第三通孔433，所述公共电极层217沿所述第二通孔432延伸，且所述公共电极层217的延伸部分与所述像素定义层215贴合设置，通过将公共电极层向像素定义层延伸，使得光线在照射到像素定义层的第二通孔的侧壁上时，不会被像素定义层吸收或者折射，而是通过公共电极层的延伸部分进行反射，使得光线继续向下传播，从而避免了光线的损失，提高了显示面板的透光性能。
在一种实施例中，如图4所示，所述公共电极层217沿第三通孔433延伸，且所述公共电极层217的延伸部分与所述平坦化层213贴合，从而使得光线在透过像素定义层的通孔后，避免光线会被平坦化层吸收，从而避免了光线的吸收，提高了显示面板的透光性能。
在一种实施例中，所述封装层填充至所述第一通孔、第二通孔和第三通孔，通过将封装层填充至第一通孔、第二通孔和第三通孔，使得在形成平坦化层后，然后形成像素定义层时，像素定义层不会形成在第一通孔内，然后形成公共电极层时，公共电极层不会形成在第二通孔内，从而使得通孔能正常透光，提高显示面板的透光性能。
在一种实施例中，如图5所示，还包括遮光层54，所述遮光层54设置于所述传递211与所述驱动电路层之间，所述遮光层54在所述电子元件设置区233设有第五通孔541，通过在传递与驱动电路层之间设置遮光层，使得不是通过过孔进入的外界光、以及发光层发出的光会被遮光层阻挡，从而避免不是通过过孔的光线和发光层发出的光不好干扰到电子元件，且光线可透过第五通孔穿过，从而使得电子元件正常工作。
在一种实施例中，如图5所示，所述驱动电路层包括阻挡层2121、缓冲层2122、有源层2123、第一栅极绝缘层2124、第一栅极2125、第二栅极绝缘层2126、第二栅极2127、层间绝缘层2128、源漏极层2129。
在一种实施例中，所述遮光层的材料包括吸光金属材料，光线在照射到遮光层时，会被遮光层吸收、反射，从而避免光线干扰电子元件。
如图6所示，本申请实施例提供一种显示面板，该显示面板包括非显示区61、第一显示区63和第二显示区62，所述第二显示区62设有第一像素631和第二像素632，所述第一像素631在所述电子元件设置区设置有过孔633，所述第二像素632在所述电子元件设置区未设置过孔；考虑到电子元件设置区可能会跨越多个像素，在设置过孔时，可依据像素的排列设置过孔，无需各个像素均设置过孔，例如图6中在第一像素对应电子元件设置区的区域设置过孔，在第二像素对应电子元件设置区的区域不设置过孔，使得在工艺上较容易实现，且过孔不会对显示产生较大影响；实际过孔的设置依据实际像素的排列密度设置或者不设置。
如图7所示，本申请实施例提供一种显示装置，该显示装置包括显示面板和电子元件75，所述显示面板包括：
衬底211；
驱动电路层212，设置在所述衬底211上；
平坦化层213，设置于所述驱动电路层212上；
像素电极层214，设置于所述平坦化层213上；
像素定义层215，定义出发光区域，设置于所述像素电极层214上；
发光材料层216，设置于所述像素定义层215定义出的发光区域；
公共电极层217，设置于所述发光材料层216上；
其中，所述驱动电路层212、平坦化层213、像素定义层215和公共电极层217中的至少一层在对应电子元件设置位置的电子元件设置区223设置有过孔。
本申请实施例提供一种显示装置，该显示装置包括显示面板和电子元件，该显示面板包括衬底、驱动电路层、平坦化层、像素电极层、像素定义层、发光材料层和公共电极层，所述驱动电路层设置在所述衬底上，所述平坦化层设置于所述驱动电路层上，所述像素电极层设置于所述平坦化层上，所述像素定义层定义出发光区域，设置于所述像素电极层上，所述发光材料层设置于所述像素定义层定义出的发光区域，所述公共电极层设置于所述发光材料层上，其中，所述驱动电路层、平坦化层、像素定义层和公共电极层中的至少一层在对应电子元件设置位置的电子元件设置区设置有过孔；通过在对应电子元件设置位置的电子元件设置区，将显示面板中的驱动电路层、平坦化层、像素定义层和公共电极层中的至少一层设置过孔，使得外界光线在经过显示面板时，不会被设有过孔的膜层干扰，能直接透过设有过孔的膜层，从而使得光线透过率提高，解决了现有的柔性显示屏存在透光性能较差的技术问题。
在一种实施例中，所述电子元件为光线传感器；以可折叠显示装置为例，为了实现可折叠显示装置折叠时，可折叠显示装置不显示，在显示面板下设置光线传感器，在光线无法进入到光线传感器时，关闭显示面板，使显示面板不显示，在可折叠显示装置展开时，使显示面板显示，光线透过显示面板进入光线传感器，由于显示面板在对应光线传感器的区域设置有过孔，使得光线尽量透过显示面板，而不会在显示面板中出现损失，从而使显示面板显示，使得可折叠显示装置正常显示。
在一种实施例中，为了使光线在进入电子元件设置区时，显示面板显示，可使过孔大小与电子元件设置区大小一致，且使得平坦化层与像素定义层使用吸光有机材料，在光线从电子元件设置区进入时，显示面板才能显示，同时，当光线无法进入电子元件设置区时，显示面板不显示。
在一种实施例中，可将过孔的宽度设置为大于电子元件设置区的宽度，由于电子元件设置较小，可在光线未进入电子元件设置区时，通过电子元件设置区两侧进入，从而可提前使显示面板显示或者关闭。
在一种实施例中，所述第五通孔侧面设有反光构件，使得光线以从第五通孔的侧壁射出时，会被发光构件反射，使得光线不会损失。
在一种实施例中，所述光线传感器集成在所述衬底下，以降低显示装置的厚度。
在一种实施例中，为减小显示装置的厚度，可将电子元件与显示面板贴合设置，使电子元件贴合在显示面板的衬底上，或者在设置衬底时，可在衬底远离驱动电路层的一侧设置凹槽，时电子元件设置在所述凹槽内，从而降低显示装置的厚度。
根据以上实施例可知：
本申请实施例提供一种显示面板和显示装置，该显示面板包括衬底、驱动电路层、平坦化层、像素电极层、像素定义层、发光材料层和公共电极层，所述驱动电路层设置在所述衬底上，所述平坦化层设置于所述驱动电路层上，所述像素电极层设置于所述平坦化层上，所述像素定义层定义出发光区域，设置于所述像素电极层上，所述发光材料层设置于所述像素定义层定义出的发光区域，所述公共电极层设置于所述发光材料层上，其中，所述驱动电路层、平坦化层、像素定义层和公共电极层中的至少一层在对应电子元件设置位置的电子元件设置区设置有过孔；通过在对应电子元件设置位置的电子元件设置区，将显示面板中的驱动电路层、平坦化层、像素定义层和公共电极层中的至少一层设置过孔，使得外界光线在经过显示面板时，不会被设有过孔的膜层干扰，能直接透过设有过孔的膜层，从而使得光线透过率提高，解决了现有的柔性显示屏存在透光性能较差的技术问题。
综上所述，虽然本申请已以优选实施例揭露如上，但上述优选实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种显示面板，其包括：
    衬底；
    驱动电路层，设置在所述衬底上；
    平坦化层，设置于所述驱动电路层上；
    像素电极层，设置于所述平坦化层上；
    像素定义层，定义出发光区域，设置于所述像素电极层上；
    发光材料层，设置于所述像素定义层定义出的发光区域；
    公共电极层，设置于所述发光材料层上；
    其中，所述驱动电路层、平坦化层、像素定义层和公共电极层中的至少一层在对应电子元件设置位置的电子元件设置区设置有过孔。
  2. 如权利要求1所述的显示面板，其中，所述公共电极层在所述电子元件设置区设有第一过孔。
  3. 如权利要求2所述的显示面板，其中，所述第一过孔贯穿所述公共电极层形成第一通孔。
  4. 如权利要求1所述的显示面板，其中，所述像素定义层在所述电子元件设置区设有第二过孔。
  5. 如权利要求4所述的显示面板，其中，所述第二过孔贯穿所述像素定义层形成第二通孔。
  6. 如权利要求1所述的显示面板，其中，所述平坦化层在所述电子元件设置区设有第三过孔。
  7. 如权利要求6所述的显示面板，其中，所述第三过孔贯穿所述平坦化层形成第三通孔。
  8. 如权利要求1所述的显示面板，其中，所述公共电极层在所述电子元件设置区设有第一通孔，所述像素定义层在所述电子元件设置区设有第二通孔，所述平坦化层在所述电子元件设置区设有第三通孔，所述第一通孔、第二通孔和第三通孔在所述衬底上的投影存在重合。
  9. 如权利要求8所述的显示面板，其中，所述驱动电路层设有第四通孔，所述第一通孔、第二通孔、第三通孔、第四通孔在所述衬底上的投影存在重合。
  10. 如权利要求9所述的显示面板，其中，所述第四通孔的截面面积大于所述第三通孔的截面面积，所述第三通孔的截面面积大于所述第二通孔的截面面积，且所述第二通孔的截面面积大于所述第一通孔的截面面积。
  11. 如权利要求8所述的显示面板，其中，所述封装层填充至所述第一通孔、第二通孔和第三通孔。
  12. 如权利要求8所述的显示面板，其中，所述像素定义层的材料包括吸光有机材料。
  13. 如权利要求8所述的显示面板，其中，所述平坦化层的材料包括吸光有机材料。
  14. 如权利要求1所述的显示面板，其中，还包括遮光层，所述遮光层设置于所述衬底与所述驱动电路层之间，所述遮光层在所述电子元件设置区设有第五通孔。
  15. 如权利要求14所述的显示面板，其中，所述遮光层的材料包括金属材料。
  16. 如权利要求1所述的显示面板，其中，所述第二显示区设有第一像素和第二像素，所述第一像素在所述电子元件设置区设置有过孔，所述第二像素在所述电子元件设置区未设置过孔。
  17. 一种显示装置，其包括显示面板和电子元件，所述显示面板包括：
    衬底；
    驱动电路层，设置在所述衬底上；
    平坦化层，设置于所述驱动电路层上；
    像素电极层，设置于所述平坦化层上；
    像素定义层，定义出发光区域，设置于所述像素电极层上；
    发光材料层，设置于所述像素定义层定义出的发光区域；
    公共电极层，设置于所述发光材料层上；
    其中，所述驱动电路层、平坦化层、像素定义层和公共电极层中的至少一层在对应电子元件设置位置的电子元件设置区设置有过孔。
  18. 如权利要求17所述的显示装置，其中，所述电子元件包括光线传感器。
  19. 如权利要求18所述的显示装置，其中，所述光线传感器集成在所述衬底下。
  20. 如权利要求17所述的显示装置，其中，所述公共电极层在所述电子元件设置区设有第一通孔，所述像素定义层在所述电子元件设置区设有第二通孔，所述平坦化层在所述电子元件设置区设有第三通孔，所述第一通孔、第二通孔和第三通孔在所述衬底上的投影存在重合。
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