WO2020038200A1 - 显示面板及制备方法以及电子设备 - Google Patents

显示面板及制备方法以及电子设备 Download PDF

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Publication number
WO2020038200A1
WO2020038200A1 PCT/CN2019/098549 CN2019098549W WO2020038200A1 WO 2020038200 A1 WO2020038200 A1 WO 2020038200A1 CN 2019098549 W CN2019098549 W CN 2019098549W WO 2020038200 A1 WO2020038200 A1 WO 2020038200A1
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Prior art keywords
light
layer
electrode layer
transmitting
display panel
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PCT/CN2019/098549
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English (en)
French (fr)
Inventor
吴俊纬
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维沃移动通信有限公司
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Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to JP2021534413A priority Critical patent/JP2021535579A/ja
Priority to KR1020217008704A priority patent/KR102558519B1/ko
Priority to EP19851566.0A priority patent/EP3843147A4/en
Publication of WO2020038200A1 publication Critical patent/WO2020038200A1/zh
Priority to US17/183,650 priority patent/US20210193951A1/en

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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
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
    • 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
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • 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
    • H10K50/805—Electrodes
    • H10K50/81—Anodes
    • 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
    • H10K50/805—Electrodes
    • H10K50/82—Cathodes
    • 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
    • H10K59/1201—Manufacture or treatment
    • 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
    • H10K59/124—Insulating layers formed between TFT elements and OLED elements
    • 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
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • 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
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
    • 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
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
    • H10K59/65—OLEDs integrated with inorganic image sensors
    • 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
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8051—Anodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/20—Changing the shape of the active layer in the devices, e.g. patterning
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/621—Providing a shape to conductive layers, e.g. patterning or selective deposition
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/302—Details of OLEDs of OLED structures
    • H10K2102/3023—Direction of light emission
    • H10K2102/3031—Two-side emission, e.g. transparent OLEDs [TOLED]
    • 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
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8051—Anodes
    • H10K59/80515—Anodes characterised by their shape

Definitions

  • the present disclosure relates to the technical field of display devices, and in particular, to a display panel and a manufacturing method thereof, and an electronic device.
  • display panels are widely used in electronic devices such as mobile terminals, televisions, etc., and have become one of the most important electronic devices in people's lives. People also have higher and higher requirements for display panels.
  • a mobile terminal As an example, most of the display panels on mobile terminals in related technologies do not have a light transmission function.
  • the display panel and the light sensing device (for example, a camera) need to be set separately.
  • a common front camera is located above the display panel, and the display panel Need to set through holes to ensure that the camera works properly.
  • this structure limits the display area of the display panel, which is not conducive to the development of a higher screen ratio.
  • the embodiments of the present disclosure provide a display panel, a manufacturing method thereof, and an electronic device, so as to solve the problem that the display area of the display panel is limited in the related art, and is conducive to the development of the display panel to a larger display area.
  • an embodiment of the present disclosure provides a display panel, including:
  • a first electrode layer where the first electrode layer is a light transmitting layer
  • a second electrode layer, the second electrode layer is disposed on one side of the first electrode layer, and a first light-transmitting region is provided on the second electrode layer;
  • An organic light-emitting layer, the first electrode layer, the organic light-emitting layer, and the second electrode layer are sequentially stacked, the organic light-emitting layer has a plurality of pixel units, and each of the pixel units is respectively connected to the first electrode And the second electrode layer is electrically connected, and the organic light emitting layer is a light transmitting layer;
  • a driving layer provided on a side of the second electrode layer remote from the organic light-emitting layer and used to control the pixel unit to emit light; the driving layer having a second light-transmitting region; The light-transmitting area is disposed corresponding to the first light-transmitting area.
  • an embodiment of the present disclosure further provides an electronic device including the display panel described in the first aspect.
  • an embodiment of the present disclosure further provides a method for manufacturing a display panel, which is applied to the display panel as described in the first aspect, and includes a step of forming a first light-transmitting region on the second electrode layer, and A step of forming a second light transmitting region corresponding to the position of the first light transmitting region on the driving layer,
  • the step of forming a first light-transmitting region on the second electrode layer includes:
  • the step of forming a second light-transmitting region corresponding to the position of the first light-transmitting region on the driving layer includes:
  • a driving layer is formed on one side of the second electrode layer, and a driving circuit of the driving layer is arranged outside a range covered by the first light-transmitting region of the driving layer so as to correspond to the first layer of the driving layer.
  • a position of a light transmitting area forms a second light transmitting area.
  • the first electrode layer is a light-transmitting layer
  • the second electrode layer is provided with a first light-transmitting area
  • the organic light-emitting layer is a light-transmitting layer, so that the light-transmitting area can realize light transmission
  • An organic light-emitting layer and a driving layer are respectively provided on both sides of the two electrode layers.
  • the driving layer can control the pixel unit of the organic light-emitting layer to emit light, and the driving layer is provided with a second light-transmitting area corresponding to the first light-transmitting area, which makes the present invention
  • the display panel provided in the disclosed embodiments can not only realize light transmission in the portions corresponding to the first light-transmitting area and the second light-transmitting area, but also has a function of light-emitting display, so that when the display panel is applied to an electronic device, the display panel can The light-transmitting area and the light-transmitting area of the second light-transmissive area are installed to facilitate the flexible layout of the light-sensitive device, increase the application range of the display panel, and also facilitate the development of the display panel to a larger display area.
  • FIG. 1 is a structural diagram of a display panel provided by an embodiment of the present disclosure
  • FIG. 2 is a partial cross-sectional view of the display panel in FIG. 1.
  • the display panel 100 includes a first electrode layer 10, an organic light-emitting layer (not labeled), a second electrode layer 20, and a driving layer 40 which are sequentially stacked.
  • the first electrode layer 10 and the organic light-emitting layer are both light-transmitting layers.
  • the second electrode layer 20 is provided with a first light-transmitting region 21.
  • the organic light-emitting layer has a plurality of pixel units 31, and each pixel unit 31 is respectively connected to the first The electrode layer 10 and the second electrode layer 20 are electrically connected, the driving layer 40 is used to control the pixel unit 31 to emit light, and the driving layer 40 has a second light-transmitting region 41, the second light-transmitting region 41 and the first light-transmitting region 21 Corresponding setting.
  • the first electrode layer 10 is a cathode layer
  • the second electrode layer 20 is an anode layer.
  • the pixel unit 31 can realize light emission when the first electrode layer 10 and the second electrode layer 20 are conductive at the same time. That is, the organic light emitting layer is made to emit light.
  • the first electrode layer 10 is made of a transparent material
  • the second electrode layer 20 is provided with a first light-transmitting region 21, so that the area covered by the first light-transmitting region 21 can achieve light transmission.
  • the first light-transmitting region 21 is covered with an organic light-emitting layer, that is, the first light-transmitting region 21 is covered with the pixel unit 31, so that the light-emitting display can still be achieved through the pixel unit 31 above the first light-transmitting region 21.
  • a portion of the driving layer 40 corresponding to the first light-transmitting region 21 is provided with a second light-transmitting region 41, so that portions of the display panel 100 corresponding to the first light-transmitting region 21 and the second light-transmitting region 41 can achieve light transmission.
  • It also has the function of light-emitting display, so as to facilitate the installation of photosensitive devices under the display panel 100 side corresponding to the first light-transmitting area 21 and the second light-transmitting area 41.
  • the applicability of the display panel 100 is improved, and it is also convenient for the display panel 100 to be able to mount a photosensitive device under the display panel 100 when it is applied to an electronic device, through the first light transmitting region 21 and the second light transmitting region 41 to
  • the realization of photosensitivity further enables the display panel 100 to develop toward a larger display area. It can be understood that the corresponding non-light-transmitting area 102 of the display panel 100 can implement a display function.
  • a photosensitive device such as a camera or a flash can be installed below the mobile terminal corresponding to the first light-transmitting area 21 and the second light-transmitting area 41, so that the light-sensitive device does not need to be occupied.
  • the area of the display panel on the electronic device is conducive to the development of the display panel 100 to a larger size and to increase the screen ratio of the mobile terminal.
  • the display panel 100 includes a light-transmitting region 101 corresponding to the first light-transmitting region 21 and the second light-transmitting region 41, and a non-light-transmitting non-light-transmitting region 102 except for the light-transmitting region 101.
  • the region may be a solid color such as red or blue, or a color such as white or gray to avoid contact with the non-light-transmitting region 102 of the display panel 100.
  • the display colors have a large difference, ensuring the display effect and aesthetics of the display panel 100.
  • the driving layer 40 has a plurality of driving circuits (not labeled).
  • the driving circuits are electrically connected to the first electrode layer 10 and the second electrode layer 20 to control the pixel unit 31 to emit light.
  • Outside Area 41 the driving circuit includes a number of opaque components (for example, thin film transistors).
  • the driving circuit is disposed outside the second light-transmitting area 41 to prevent the opaque components from interfering with the first light-transmitting area 21 The light transmission of the inner area causes interference.
  • the driving circuit is disposed outside the second light-transmitting region 41, that is, the driving circuit is not provided below the first light-transmitting region 21, but the driving layer 40 is formed at a position corresponding to the first light-transmitting region 21 without driving.
  • the second light-transmitting area 41 of the circuit further ensures that the area covered by the first light-transmitting area 21 of the display panel has better light-transmitting performance.
  • the driving circuit includes a plurality of first driving circuits, the plurality of first driving circuits are used to control the light emission of the pixel units 31 located within the coverage of the first light-transmitting area 21, and a first driving circuit controls the coverage of the first light-transmitting area 21 At least two pixel units 31 in the range emit light simultaneously. In this way, the pixel unit 31 in the organic light-emitting layer corresponding to the coverage of the first light-transmitting region 21 is controlled by the first driving circuit.
  • the first driving circuit may be provided separately from other driving circuits of the driving layer 40.
  • the first driving circuit is disposed at an edge of the second light-transmitting region 41, and other driving circuits of the driving layer 40 may be disposed at other regions of the driving layer 40.
  • the first driving circuit is disposed around the edge of the second light transmitting region 41.
  • a portion of the second electrode layer 20 excluding the first light-transmitting region 21 is a non-light-transmitting region, and a portion of the driving layer 40 excluding the second light-transmitting region 41 corresponds to the non-light-transmitting region.
  • the driving circuit is arranged in the coverage of the non-light-transmitting area, and does not interfere with the light-transmitting performance of the first light-transmitting area 21; and the driving circuit is arranged around the edge of the second light-transmitting area 41.
  • the first driving circuit is disposed around the circular second light-transmitting region 41 to control the pixel unit 31 located within the coverage of the first light-transmitting region 21 to emit light.
  • a first driving circuit can be set to control the light emission of at least two pixel units 31 within the coverage area of the first light-transmitting area 21 at the same time.
  • the first The number of driving circuits can further reduce the area of the non-display area, so that the display panel 100 can present a better display effect.
  • the second electrode 20 layer has a metal layer (not labeled), and a through hole is formed on the metal layer to form the first light-transmitting region 21.
  • the metal layer is made of an opaque metal material.
  • a through hole is provided in the metal layer, and the through hole may be formed by an etching process, that is, the second The electrode layer 20 has a metal layer provided with a through hole, so that the light transmission of the first light transmitting region 21 can be achieved.
  • the second electrode layer 20 may include a first film layer, a metal layer, and a third film layer, which are sequentially arranged.
  • the first film layer and the third film layer are made of a transparent material, and the metal layer is provided with through holes.
  • the first film layer may be made of indium tin oxide (ITO)
  • the third film layer may also be made of ITO
  • the metal layer may be a silver layer.
  • the first light-transmitting region 21 may be formed on the edge of the second electrode layer 20; or as shown in FIG. 1, the first light-transmitting region 21 may be surrounded by a non-light-transmitting region.
  • the second electrode layer 20 is provided with at least one first light-transmitting region 21, the driving layer 40 includes at least one second light-transmitting region 41, one first light-transmitting region 21 and one second light-transmitting region 41- One corresponding setting. That is to say, the display panel 100 has at least one area capable of transmitting light. In this way, when the display panel 100 is applied to an electronic device, it can be better laid out under the display panel 100 corresponding to the light-transmitting area 101. Photosensitive devices can avoid the centralized arrangement of photosensitive devices and facilitate the installation and layout of components on electronic equipment.
  • a first light-transmitting region 21 may be provided at the upper end and a lower end of the corresponding display panel 100 of the second electrode layer 20, and the driving layer 40 may be provided with two first light-transmitting regions corresponding to the two first light-transmitting regions 21 one-to-one.
  • Two light-transmitting areas 41 when the display panel 100 is applied to an electronic device, a 2D camera may be provided under one of the light-transmitting areas corresponding to the display panel 100, and a 3D camera may be provided under the other light-transmitting area corresponding to the display panel 100, In this way, the functions of the electronic device are diversified, and the application range of the display panel 100 is also increased.
  • the first light-transmitting area 21 and the second light-transmitting area 41 may also correspond to other numbers, such as three, four, and the like.
  • the setting may be comprehensively considered in consideration of setting requirements, costs, and the like, and this disclosure does not specifically limit this.
  • the display panel 100 further includes a buffer layer, a substrate, a packaging layer, and the like; the specific setting manner and implementation manner may refer to the display panel in the related technology, and here Do not go into details.
  • An embodiment of the present disclosure further provides an electronic device including the technical solutions of the display panel provided in the above embodiments, and achieving the same technical effect. To avoid repetition, details are not described herein again.
  • Electronic devices may include: mobile phones, tablet computers, e-book readers, MP3 players, MP4 players, digital cameras, laptops, portable computers, in-vehicle computers, desktop computers, set-top boxes, smart TVs, and wearable devices. One item.
  • the electronic device includes a light-sensitive device disposed on one side of the display panel and adjacent to the driving layer, and the light-sensitive device is located in a coverage area of the first light-transmitting area and the second light-transmitting area. That is to say, the photosensitive device is disposed below the display panel and corresponds to the setting of the light-transmitting area of the display panel, so that the light-sensitive device can sense the light passing through the light-transmitting area to realize the light-sensitive function, and ensure the normal use of the light-sensitive device. In this way, the photosensitive device does not need to be installed above the display panel, which is conducive to achieving a larger size of the display panel, increases the screen ratio of the electronic device, and facilitates the development of the full screen of the mobile terminal.
  • the embodiment of the present disclosure further provides a method for manufacturing a display panel, which is applied to the display panel provided in the above embodiment.
  • the method for manufacturing a display panel includes a step of forming a first light-transmitting region on a second electrode layer and a driving layer. A step of forming a second light transmitting region corresponding to the position of the first light transmitting region.
  • the step of forming a first light-transmitting region on the second electrode layer includes:
  • the step of forming a second light-transmitting region corresponding to the position of the first light-transmitting region on the driving layer includes:
  • a driving layer is formed on one side of the second electrode layer, and the driving circuit of the driving layer is arranged outside the coverage of the first light-transmitting region of the driving layer to form a second portion of the driving layer corresponding to the first light-transmitting region. Light transmission area.
  • the second electrode layer is an anode layer.
  • the second electrode layer may include a first film layer, a metal layer, and a third film layer that are sequentially formed, and the first film layer and the third film layer are made of a transparent material.
  • the first film layer may be made of indium tin oxide (ITO)
  • the third film layer may also be made of ITO
  • the metal layer may be a silver layer or other metal materials.
  • a through hole is provided in the metal layer to form a first light-transmitting region in the second electrode layer, thereby realizing the light-transmittance of a part of the second electrode layer.
  • a via hole is formed on the metal layer by using an etching process. That is, a part of the metal material of the non-transparent metal layer is etched away to form a first light-transmitting region, and the unetched part is a non-light-transmitting region of the second electrode layer.
  • the edge portion of the metal layer may be etched away to form a first light-transmitting area; or a portion of the area inside the metal layer may be etched away to form a first light-transmitting area surrounded by a non-light-transmitting area.
  • a driving layer is formed on one side of the second electrode layer, and the driving circuit of the driving layer is arranged outside the coverage of the first light-transmitting area of the driving layer, and a corresponding one without the driving circuit is formed on the driving layer.
  • the second light-transmitting area of the first light-transmitting area also forms a light-transmitting area on the display panel.
  • the method for manufacturing a display panel further includes the following steps:
  • a first electrode layer is formed on a side of the organic light emitting layer facing away from the second electrode layer.
  • the first electrode layer and the organic light emitting layer are both formed of a transparent material, and the organic light emitting layer is formed with a pixel unit. That is, the organic light emitting layer is located between the first electrode layer and the second electrode layer. Understandably, the second electrode layer is provided with a first light-transmitting region, and the first light-transmitting region is covered with an organic light-emitting layer, so that the light-emitting display can be achieved by the pixel unit of the organic light-emitting layer above the light-transmitting region.
  • the display panel prepared by the manufacturing method provided in the embodiment of the present disclosure can not only realize light transmission in the portion corresponding to the first light-transmitting area, but also have the function of light-emitting display, thereby improving the applicable range of the display panel.
  • the driving circuit of the driving layer includes a plurality of first driving circuits.
  • the first driving circuit is used to control the light emission of the pixel units located within the coverage of the first light-transmitting area.
  • One first driving circuit controls the first light-transmitting area.
  • At least two pixel units in the coverage area emit light simultaneously.
  • the plurality of first driving circuits are all disposed outside the second light-transmitting area, so that the light transmittance of the first light-transmitting area and the second light-transmitting area will not be disturbed, thereby ensuring the light-transmitting performance of the display panel.
  • the number of the first driving circuits for controlling the light emission of the pixel units within the coverage of the first light-transmitting area can be reduced, thereby reducing the area of the non-display area on the display panel due to the setting of the first driving circuit.
  • the manufacturing method of the display panel may further include the steps of forming a buffer layer, a substrate, a packaging layer, and a thin film transistor.
  • the specific manufacturing method and the deposition principle may refer to the manufacturing methods in related technologies, and details are not described herein.

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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

本公开提供一种显示面板及制备方法以及电子设备；其中，所述显示面板包括依次叠置的第一电极层、有机发光层、第二电极层和驱动层。其中，第一电极层及有机发光层均为透光层，第二电极层上设有第一透光区，有机发光层具有若干像素单元，每个像素单元分别与第一电极层和第二电极层电连接，驱动层用于控制像素单元发光，且所述驱动层具有第二透光区，第二透光区与第一透光区对应设置。

Description

显示面板及制备方法以及电子设备
相关申请的交叉引用
本申请主张在2018年8月24日在中国提交的中国专利申请号No.201810974067.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及显示设备技术领域，尤其涉及一种显示面板及制备方法以及电子设备。
背景技术
目前，显示面板被广泛应用于如移动终端、电视等电子设备中，成为人们生活中最为重要的电子器件之一，人们对显示面板的要求也越来越高。以移动终端为例，相关技术中的移动终端上的显示面板大多不具备透光功能，显示面板与感光器件(例如，摄像头)需要分开设置，如常见的前置摄像头位于显示面板上方，显示面板需设置通孔保证摄像头正常工作。但是，这种结构使显示面板的显示面积受到了限制，不利于向更高屏占比发展。
发明内容
本公开实施例提供一种显示面板及制备方法以及电子设备，以解决相关技术中的显示面板的显示面积受到限制的问题，利于显示面板向更大的显示面积发展。
为解决以上技术问题，本公开是这样实现的：
第一方面，本公开实施例提供了一种显示面板，包括：
第一电极层，所述第一电极层为透光层；
第二电极层，所述第二电极层置于所述第一电极层的一侧，所述第二电极层上设有第一透光区；
有机发光层，所述第一电极层、所述有机发光层和所述第二电极层依次叠置，所述有机发光层具有若干像素单元，每个所述像素单元分别与所述第 一电极层和所述第二电极层电连接，所述有机发光层为透光层；
驱动层，所述驱动层设于所述第二电极层的远离所述有机发光层的一侧且用于控制所述像素单元发光，所述驱动层具有第二透光区，所述第二透光区与所述第一透光区对应设置。
第二方面，本公开实施例还提供了一种电子设备，包括如第一方面中所述的显示面板。
第三方面，本公开实施例还提供一种显示面板的制备方法，应用于如第一方面中所述的显示面板，包括在所述第二电极层上形成第一透光区的步骤及在所述驱动层上形成与所述第一透光区位置对应的第二透光区的步骤，
所述在所述第二电极层上形成第一透光区的步骤包括：
在所述第二电极层的金属层上设置通孔，以在所述第二电极层上形成第一透光区；
所述在所述驱动层上形成与所述第一透光区位置对应的第二透光区的步骤包括：
在所述第二电极层的一侧形成驱动层，将驱动层的驱动电路布置于所述驱动层的所述第一透光区覆盖的范围外，以在所述驱动层的对应所述第一透光区的位置形成第二透光区。
本公开实施例提供的技术方案，第一电极层为透光层，第二电极层设有第一透光区，有机发光层为透光层，进而使得该透光区域能够实现透光；第二电极层的两侧分别设置有机发光层和驱动层，驱动层能够控制有机发光层的像素单元发光，且驱动层设有与第一透光区对应的第二透光区，也就使得本公开实施例提供的显示面板在对应第一透光区及第二透光区的部分既能实现透光，还具备发光显示的功能，使得该显示面板在应用于电子设备时，能够在对应第一透光区及第二透光区的部分安装感光器件，利于实现感光器件的灵活布局，提高了显示面板的适用范围，也更利于显示面板向更大的显示面积发展。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例描 述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获取其他的附图。
图1是本公开实施例提供的显示面板的结构图；
图2是图1中显示面板的局部剖视图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获取的所有其他实施例，都属于本公开保护的范围。
本公开实施例提供一种显示面板，请参照图1和图2，显示面板100包括依次叠置的第一电极层10、有机发光层(未标示)、第二电极层20和驱动层40。其中，第一电极层10及有机发光层均为透光层，第二电极层20上设有第一透光区21，有机发光层具有若干像素单元31，每个像素单元31分别与第一电极层10和第二电极层20电连接，驱动层40用于控制像素单元31发光，且所述驱动层40具有第二透光区41，第二透光区41与第一透光区21对应设置。
本公开实施例中，第一电极层10为阴极层，第二电极层20为阳极层，像素单元31能够在同时与第一电极层10和第二电极层20导通的情况下实现发光，也就是使得有机发光层发光。其中，第一电极层10为透明材质，第二电极层20设有第一透光区21，进而使得第一透光区21覆盖的区域能够实现透光。另外，第一透光区21上覆盖有机发光层，也就是第一透光区21上覆盖有像素单元31，进而使得第一透光区21上方还是能够通过像素单元31实现发光显示。并且，驱动层40的对应第一透光区21的部分设有第二透光区41，进而使得显示面板100的对应第一透光区21及第二透光区41的部分能够实现透光，还具备发光显示的功能，以方便在显示面板100一侧对应第一透光区21及第二透光区41的下方安装感光器件。这样，提高了显示面板100的适用性，也方便该显示面板100在应用于电子设备时，能够将感光器件安 装于显示面板100下方，通过第一透光区21及第二透光区41来实现感光，进而也就使得显示面板100能向更大的显示面积发展。可以理解的，显示面板100的对应非透光区102可以实现显示功能。
例如，当显示面板100应用于移动终端时，可以在移动终端的对应于第一透光区21及第二透光区41的下方安装摄像头、闪光灯等感光器件，也就使得感光器件不需要占用电子设备上显示面板的面积，有利于显示面板100向更大尺寸发展，提高移动终端的屏占比。
本公开实施例中，显示面板100包括对应第一透光区21及第二透光区41的透光区域101，以及除去透光区域101以外的不能透光的非透光区域102。当有机发光层的对应于第一透光区21的像素单元31发光时，该区域可以是显示红色、蓝色等纯色或者白色、灰色等颜色，以避免与显示面板100的非透光区域102的显示颜色差别较大，确保显示面板100的显示效果和美观性。
本公开实施例中，驱动层40具有若干驱动电路(未标示)，驱动电路分别与第一电极层10和第二电极层20电连接以控制像素单元31发光，驱动电路设于第二透光区41外。需要说明的是，驱动电路包括若干不透光的元器件(例如，薄膜晶体管)，将驱动电路设置于第二透光区41外，可以避免不透光的元器件对第一透光区21内的区域的透光性造成干扰。驱动电路设于第二透光区41外，也就是说，第一透光区21的下方没有设置驱动电路，而是在驱动层40的对应第一透光区21的位置形成了不包括驱动电路的第二透光区41，进而以确保显示面板的第一透光区21覆盖的区域具有较更优的透光性能。
可选地，驱动电路包括若干第一驱动电路，若干第一驱动电路用于控制位于第一透光区21覆盖范围内的像素单元31发光，一个第一驱动电路控制第一透光区21覆盖范围内的至少两个像素单元31同时发光。这样，也就使得有机发光层的对应第一透光区21覆盖范围内的像素单元31由的第一驱动电路来控制，该第一驱动电路可以是与驱动层40的其他驱动电路分开设置，例如，第一驱动电路设于第二透光区41的边缘，驱动层40的其他驱动电路可以设于驱动层40的其他区域。
例如，第一驱动电路围绕第二透光区41的边缘设置。如图2所示，第二电极层20的除去第一透光区21的部分为非透光区，驱动层40的除去第二透 光区41的部分对应该非透光区，则第一驱动电路设于非透光区的覆盖范围内，并不会对第一透光区21的透光性能造成干扰；且该驱动电路环绕第二透光区41的边缘设置，例如可以是如图1所示，第一驱动电路环绕圆形的第二透光区41设置，以控制位于第一透光区21覆盖范围内的像素单元31发光。
需要说明的是，由于第一驱动电路的设置，显示面板100的对应该第一驱动电路的部分不会显示内容，为不显示区域，可以是呈现黑色的视觉效果。由此，可以设置一个第一驱动电路控制第一透光区21覆盖范围内的至少两个像素单元31同时发光，相比于一个驱动电路单独控制一个像素单元31发光的设置，可以减少第一驱动电路的数量，进而可以减小不显示区域的面积，使得显示面板100可以呈现更好的显示效果。
本公开实施例中，第二电极20层具有金属层(未标示)，金属层上设有通孔以形成第一透光区21。可以理解地，金属层由不透光的金属材质制成，为实现显示面板100的透光性能，在金属层设有通孔，该通孔可以是经蚀刻工艺形成，也就是说，第二电极层20具有设置了通孔的金属层，从而可以实现第一透光区21的透光。
可选地，第二电极层20可以包括依次设置的第一膜层、金属层及第三膜层，第一膜层及第三膜层为透明材质制成，金属层上设有通孔。例如，第一膜层可以是氧化铟锡(Indium Tin Oxide，ITO)材质，第三膜层也可以是ITO材质，金属层可以为银层。需要说明的是，第一透光区21可以形成于第二电极层20的边缘；或者如图1所示，第一透光区21也可以被非透光区包围。
可选地，第二电极层20上设有至少一个第一透光区21，驱动层40包括至少一个第二透光区41，一个第一透光区21与一个第二透光区41一一对应设置。也就是说，显示面板100上具有至少一个能够实现透光的区域，这样，也就使得显示面板100在应用于电子设备上时，能够在显示面板100对应透光区域101的下方更好地布局感光器件，可以避免感光器件的集中布置，方便电子设备上元器件的安装和布局。
例如，可以是在第二电极层20的对应显示面板100的上端和下端分别设置一个第一透光区21，驱动层40设置有与两个第一透光区21一一对应的两 个第二透光区41；在显示面板100应用于电子设备上时，可以在对应显示面板100其中一个透光区域的下方设置2D摄像头，在对应显示面板100另一个透光区域的下方设置3D摄像头，这样，以实现电子设备功能的多样性，进而也提高了显示面板100的适用范围。
当然，本公开的结构不限于此，第一透光区21和第二透光区41还可以是一一对应的其他数量，例如三个、四个等，对于本领域的技术人员而言，可以综合考虑设置需求、成本等因素进行设置，对此，本公开不作具体限定。
需要说明的是，本公开实施例所提供的显示面板100中，显示面板100还包括缓冲层、基板、封装层等；具体的设置方式及实现方式可以是参照相关技术中的显示面板，在此不做赘述。
本公开实施例还提供一种电子设备，该电子设备包括如上实施例所提供的显示面板的各技术方案，并能达到相同的技术效果，为避免重复，这里不再赘述。电子设备可以包括：手机、平板电脑、电子书阅读器、MP3播放器、MP4播放器、数码相机、膝上型便携计算机、车载电脑、台式计算机、机顶盒、智能电视机、可穿戴设备中的至少一项。
可选地，电子设备包括感光器件，感光器件设置于显示面板一侧且邻近驱动层，感光器件位于第一透光区及第二透光区的覆盖范围内。也就是说，感光器件设置于显示面板下方，并对应于显示面板的透光区域设置，使得感光器件能够感应到穿过透光区的光线而实现感光功能，确保感光器件的正常使用。这样，也就使得感光器件不需要安装于显示面板上方，有利于显示面板实现更大尺寸，提高了电子设备的屏占比，利于促进移动终端全面屏的发展。
本公开实施例还提供一种显示面板的制备方法，应用于如上实施例所提供的显示面板；显示面板的制备方法包括在第二电极层上形成第一透光区的步骤及在驱动层上形成与第一透光区位置对应的第二透光区的步骤。
其中，在第二电极层上形成第一透光区的步骤包括：
在第二电极层的金属层上设置通孔，以在第二电极层上形成第一透光区；
在驱动层上形成与所述第一透光区位置对应的第二透光区的步骤包括：
在第二电极层的一侧形成驱动层，将驱动层的驱动电路布置于驱动层的 第一透光区的覆盖的范围外，以在驱动层的对应第一透光区的位置形成第二透光区。
其中，第二电极层为阳极层。可选地，第二电极层可以是包括依次形成的第一膜层、金属层及第三膜层，第一膜层及第三膜层为透明材质制成。例如，第一膜层可以是氧化铟锡(Indium Tin Oxide，ITO)材质，第三膜层也可以是ITO材质，金属层可以是银层，或者是其他金属材质。在金属层上设置通孔，以在第二电极层形成第一透光区，实现第二电极层的部分区域的透光性。
本公开实施例中，采用蚀刻工艺在金属层上形成通孔。也就是说，将非透明的金属层的部分金属材质蚀刻掉，以形成第一透光区，未蚀刻的部分则为第二电极层的非透光区。可以是将金属层的边缘的部分蚀刻掉，以形成第一透光区；或者也可以是将金属层内部的部分区域蚀刻掉，以形成被非透光区包围的第一透光区。
另外，在第二电极层的一侧形成驱动层，将驱动层的驱动电路布置于驱动层的所述第一透光区的覆盖的范围之外，进而在驱动层形成没有布置驱动电路的对应第一透光区的第二透光区，也就使得显示面板上形成了一个透光区域，当显示面板应用于电子设备时，可以在显示面板的对应透光区域的下方安装感光器件，提高了显示面板的应用范围，也更利于显示面板向更大的显示面积发展。
本公开实施例中，显示面板的制备方法还包括如下步骤：
在第二电极层的一侧形成有机发光层；
在有机发光层的背对第二电极层的一侧形成第一电极层。
其中，第一电极层及有机发光层均为透明材质形成，有机发光层形成有像素单元。也就是说，有机发光层位于第一电极层与第二电极层之间。可以理解地，第二电极层设有第一透光区，第一透光区上覆盖有机发光层，也就使得透光区上方能够通过有机发光层的像素单元实现发光显示。这样，也就使得通过本公开实施例提供的制备方法制备的显示面板在对应第一透光区的部分既能实现透光，还具备发光显示的功能，进而以提高了显示面板的适用范围。
需要说明的是，驱动层的驱动电路中包括若干第一驱动电路，第一驱动电路用于控制位于第一透光区覆盖范围内的像素单元发光，一个第一驱动电路控制第一透光区覆盖范围内的至少两个像素单元同时发光。若干第一驱动电路全部设于第二透光区外，这样，也就不会对第一透光区及第二透光区的透光性造成干扰，进而以确保显示面板的透光性能。并且，也使得用于控制第一透光区覆盖范围内像素单元发光的第一驱动电路的数量能更少，进而降低由于第一驱动电路设置而导致显示面板上不显示区域的面积。
需要说明的是，显示面板的制备方法还可以包括形成缓冲层、基板、封装层及薄膜晶体管的步骤，具体的制备方法及沉积原理可以是参照相关技术中的制备方法，在此不做赘述。
以上，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以权利要求的保护范围为准。

Claims (10)

  1. 一种显示面板，包括：
    第一电极层，所述第一电极层为透光层；
    第二电极层，所述第二电极层置于所述第一电极层的一侧，所述第二电极层上设有第一透光区；
    有机发光层，所述第一电极层、所述有机发光层和所述第二电极层依次叠置，所述有机发光层具有若干像素单元，每个所述像素单元分别与所述第一电极层和所述第二电极层电连接，所述有机发光层为透光层；
    驱动层，所述驱动层设于所述第二电极层的远离所述有机发光层的一侧且用于控制所述像素单元发光，所述驱动层具有第二透光区，所述第二透光区与所述第一透光区对应设置。
  2. 根据权利要求1所述的显示面板，其中，所述驱动层具有若干驱动电路，所述驱动电路分别与所述第一电极层和所述第二电极层电连接以控制所述像素单元发光，所述驱动电路设于所述第二透光区外。
  3. 根据权利要求2所述的显示面板，其中，所述驱动电路包括若干第一驱动电路，所述若干第一驱动电路用于控制位于所述第一透光区覆盖范围内的所述像素单元发光，一个所述第一驱动电路控制所述第一透光区覆盖范围内的至少两个所述像素单元同时发光。
  4. 根据权利要求3所述的显示面板，其中，所述第一驱动电路围绕所述第二透光区设置。
  5. 根据权利要求1-4中任一项所述的显示面板，其中，所述第二电极层具有金属层，所述金属层上设有通孔以形成所述第一透光区。
  6. 根据权利要求1-4中任一项所述的显示面板，其中，所述第二电极层上设有至少一个第一透光区，所述驱动层包括至少一个第二透光区，所述至少一个第一透光区与所述至少一个第二透光区一一对应设置。
  7. 一种电子设备，包括如权利要求1-6中任一项所述的显示面板。
  8. 根据权利要求7所述的电子设备，包括感光器件，所述感光器件设置于所述显示面板一侧且邻近所述驱动层，所述感光器件位于第一透光区及第 二透光区的覆盖范围内。
  9. 一种显示面板的制备方法，应用于如权利要求1-6中任一项所述的显示面，包括在所述第二电极层上形成第一透光区的步骤及在所述驱动层上形成与所述第一透光区位置对应的第二透光区的步骤，
    所述在所述第二电极层上形成第一透光区的步骤包括：
    在所述第二电极层的金属层上设置通孔，以在所述第二电极层上形成第一透光区；
    所述在所述驱动层上形成与所述第一透光区位置对应的第二透光区的步骤包括：
    在所述第二电极层的一侧形成驱动层，将驱动层的驱动电路布置于所述驱动层的所述第一透光区覆盖的范围外，以在所述驱动层的对应所述第一透光区的位置形成第二透光区。
  10. 根据权利要求9所述的显示面板的制备方法，其中，采用蚀刻工艺在所述金属层上形成所述通孔。
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