WO2021027201A1 - Oled显示面板及电子装置 - Google Patents

Oled显示面板及电子装置 Download PDF

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Publication number
WO2021027201A1
WO2021027201A1 PCT/CN2019/124606 CN2019124606W WO2021027201A1 WO 2021027201 A1 WO2021027201 A1 WO 2021027201A1 CN 2019124606 W CN2019124606 W CN 2019124606W WO 2021027201 A1 WO2021027201 A1 WO 2021027201A1
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Prior art keywords
display area
under
screen
auxiliary metal
display panel
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Ceased
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PCT/CN2019/124606
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English (en)
French (fr)
Inventor
应俊
王国超
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to US16/757,867 priority Critical patent/US11605682B2/en
Publication of WO2021027201A1 publication Critical patent/WO2021027201A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • 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
    • H10K59/126—Shielding, e.g. light-blocking means over the TFTs
    • 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
    • H10K59/80—Constructional details
    • H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • H10K59/8792—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. black 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
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • 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

Definitions

  • the present invention relates to the field of display technology, in particular to an OLED display panel and an electronic device.
  • OLED display devices have self-luminescence, low driving voltage, high luminous efficiency, short response time, high definition and contrast, close to 180° viewing angle, wide operating temperature range, and can realize flexible display and Large-area full-color display and many other advantages are recognized by the industry as the display device with the most potential for development.
  • OLED display devices are self-luminous display devices, and usually include a pixel electrode and a common electrode serving as an anode, a cathode and a common electrode, and an organic light-emitting layer provided between the pixel electrode and the common electrode, so that an appropriate voltage is applied to When the anode and cathode are used, light is emitted from the organic light-emitting layer.
  • the organic light-emitting layer includes a hole injection layer provided on the anode, a hole transport layer provided on the hole injection layer, a light emitting layer provided on the hole transport layer, an electron transport layer provided on the light emitting layer, a device
  • the luminescence mechanism of the electron injection layer on the electron transport layer is that under a certain voltage drive, electrons and holes are injected from the cathode and anode to the electron injection layer and hole injection layer, respectively, and the electrons and holes pass through the electron transport layer and
  • the hole transport layer migrates to the light-emitting layer and meets in the light-emitting layer to form excitons and excite light-emitting molecules, which emit visible light after radiative relaxation.
  • the purpose of the present invention is to provide an OLED display panel, which can realize true full-screen display while realizing under-screen photography.
  • the purpose of the present invention is also to provide an electronic device capable of realizing a true full-screen display while realizing under-screen photography.
  • the present invention provides an OLED display panel having an under-screen camera display area and a normal display area surrounding the under-screen camera display area.
  • the pixel density of the under-screen camera display area is less than that of the normal display.
  • the pixel density of the area is less than that of the normal display.
  • the OLED display panel includes a plurality of signal lines criss-crossed, and the interval between two adjacent signal lines in the under-screen imaging display area is smaller than the interval in the normal display area.
  • the OLED display panel further includes a plurality of auxiliary metal lines and a black light shielding layer covering each auxiliary metal line.
  • the plurality of auxiliary metal lines are located in the camera display area under the screen and each auxiliary metal line correspondingly shields at least Two consecutively arranged signal lines.
  • a planarization layer is provided under the auxiliary metal lines, the planarization layer is formed with a groove corresponding to each auxiliary metal line, and each auxiliary metal line and the black light shielding layer covering the auxiliary metal line are located in the corresponding groove in.
  • the upper surface of the black light shielding layer is flush with the upper surface of the planarization layer.
  • the present invention also provides an electronic device, including an OLED display panel and a camera.
  • the OLED display panel has an under-screen camera display area and a normal display area surrounding the under-screen camera display area. Pixels in the under-screen camera display area The density is less than the pixel density of the normal display area, and the camera is arranged below the under-screen camera display area.
  • the electronic device further includes a polarizer arranged on the OLED display panel, and the polarizer is provided with an opening in an area corresponding to the imaging display area under the screen.
  • the OLED display panel includes a plurality of signal lines criss-crossed, and the interval between two adjacent signal lines in the under-screen imaging display area is smaller than the interval in the normal display area.
  • the OLED display panel further includes a plurality of auxiliary metal lines and a black light shielding layer covering each auxiliary metal line, the plurality of auxiliary metal lines are located in the camera display area under the screen, and each auxiliary metal line is correspondingly shielded At least two consecutively arranged signal lines.
  • a planarization layer is provided under the light-shielding metal lines, and the planarization layer forms a groove corresponding to each auxiliary metal line, and each auxiliary metal line and the black light-shielding layer covering the auxiliary metal line are located in the corresponding groove And the upper surface of the black light shielding layer is flush with the upper surface of the planarization layer.
  • the present invention provides an OLED display panel having an under-screen camera display area and a normal display area surrounding the under-screen camera display area, and the pixel density of the under-screen camera display area is less than that of the normal display By reducing the pixel density of the camera display area under the screen, the light transmittance of the camera display area under the screen is increased to realize the real full-screen display while shooting under the screen.
  • the present invention also provides an electronic device, which can realize true full-screen display while realizing under-screen photography.
  • FIG. 1 is a schematic diagram of the OLED display panel of the present invention
  • FIG. 2 is a pixel distribution diagram of the under-screen camera display area and the normal display area of the OLED display panel of the present invention
  • FIG. 3 is a cross-sectional view of the position of the auxiliary metal wire in the under-screen camera display area of the OLED display panel of the present invention.
  • FIG. 4 is a cross-sectional view of the pixel area of the under-screen camera display area of the OLED display panel of the present invention.
  • Fig. 5 is a schematic diagram of the electronic device of the present invention.
  • the present invention provides an OLED display panel, the OLED display panel has an under-screen camera display area 11 and a normal display area 12 surrounding the under-screen camera display area 11, wherein the screen The pixel density of the lower imaging display area 11 is smaller than the pixel density of the normal display area 12.
  • the under-screen camera display area 11 As shown in Figure 2, because the pixel density of the under-screen camera display area 11 is reduced, the number of opaque sub-pixels P in the under-screen camera display area 11 remains unchanged when the size of the under-screen camera display area 11 remains unchanged. As the pixel density decreases, the area that can transmit light increases, so that the under-screen camera display area 11 has enough light transmittance to complete under-screen imaging. At the same time, the under-screen camera display area 11 can still achieve display. , That is, real full-screen display while realizing under-screen camera.
  • the OLED display panel 1 includes a plurality of signal lines 21 criss-crossed, and the interval between two adjacent signal lines 21 in the under-screen imaging display area 11 is smaller than the interval in the normal display area 12.
  • the vertical signal lines 21 are data lines
  • the horizontal signal lines 21 are scan lines.
  • Each vertical signal line 21 is connected to a column of sub-pixels P, and each horizontal The signal line 21 is connected to a row of sub-pixels P.
  • the signal line 21 passes through the under-screen imaging and display area 11, it will move closer to the center of the under-screen imaging and display area 11, so that the signal lines 21 are densely arranged in the under-screen imaging and display area 11 to achieve
  • the interval between two adjacent signal lines 21 in the under-screen imaging display area 11 is smaller than the interval in the normal display area 12.
  • the OLED display panel of the present invention also includes a plurality of auxiliary metal lines. 23.
  • the plurality of auxiliary metal lines 23 are located in the under-screen camera display area 11, and each auxiliary metal line 23 correspondingly shields at least two consecutively arranged signal lines 21.
  • the shielding of the auxiliary metal lines 23 can effectively avoid
  • the densely arranged signal lines 21 produce undesirable optical effects and affect the under-screen imaging effect.
  • the interval between adjacent auxiliary metal lines 23 is 50 ⁇ 500um to ensure that sufficient spacing is provided to avoid light diffraction, interference and Bad optical effects such as diffraction.
  • each auxiliary metal wire 23 of the present invention is covered with a black light-shielding layer 24, which absorbs light through the black light-shielding layer 24, Reduce the reflection of the metal, so that the display panel can still maintain black without the polarizer.
  • a planarization layer 25 is provided under the auxiliary metal line 23.
  • the planarization layer 25 corresponds to each Each auxiliary metal line 23 is formed with a groove 251.
  • Each auxiliary metal line 23 and the black light-shielding layer 24 covering the auxiliary metal line 23 are located in the corresponding groove 251.
  • the black light-shielding layer 24 The upper surface is flush with the upper surface of the planarization layer 25, so that after the black light shielding layer 24 is formed, the overall topography of the film remains flat, preventing problems such as poor climbing due to the difference in the subsequent process, and ensuring the success of the subsequent process Film quality.
  • the specific structure of the pixel area of the OLED display panel of the present invention is: a substrate 101, a driving layer 100 provided on the substrate 101, and a driving layer 100 provided on the driving layer 100.
  • the planarization layer 25, the anode 23' provided on the planarization layer 25, the pixel definition layer 24' provided on the anode 23' and the planarization layer 25, are formed in the pixel definition layer 24' And expose a part of the pixel defining groove 251 of the anode 23', the light emitting layer 26 arranged in the pixel defining groove 251, and the cathode 27 arranged on the light emitting layer 26 and the pixel defining layer 24', wherein A plurality of TFTs and a plurality of signal lines 21 connecting the plurality of TFTs are formed in the driving layer 100.
  • the plurality of signal lines 21 may be located in the same metal layer or in different metal layers.
  • the auxiliary metal line 23 and the anode 23' are arranged in the same layer, and are simultaneously formed through a patterning process
  • the pixel definition layer 24' and the black light shielding layer 24 are arranged in the same layer, and pass through a pattern
  • the chemical process is simultaneously formed, and the material of the pixel definition layer 24' and the black light-shielding layer 24 are also black light-shielding materials.
  • anode 23' is electrically connected to the driving layer 100 through a via 252 passing through the planarization layer 25, and the process of forming the via 252 and the groove 251 on the planarization layer 25 can pass through a The halftone mask is completed at the same time.
  • the present invention also provides an electronic device, including an OLED display panel 1 and a camera 2.
  • the OLED display panel 1 has an under-screen camera display area 11 and a normal display surrounding the under-screen camera display area 11.
  • area 12 the pixel density of the under-screen camera and display area 11 is lower than that of the normal display area 12, and the camera 2 is arranged under the under-screen camera and display area 11.
  • the under-screen camera display area 11 As shown in Figure 2, because the pixel density of the under-screen camera display area 11 is reduced, the number of opaque sub-pixels P in the under-screen camera display area 11 remains unchanged when the size of the under-screen camera display area 11 remains unchanged. As the pixel density decreases, the area that can transmit light increases, so that the under-screen camera display area 11 has enough light transmittance to complete under-screen imaging. At the same time, the under-screen camera display area 11 can still achieve display. , That is, real full-screen display while realizing under-screen camera.
  • the OLED display panel 1 includes a plurality of signal lines 21 criss-crossed, and the interval between two adjacent signal lines 21 in the under-screen imaging display area 11 is smaller than the interval in the normal display area 12, such as
  • the vertical signal line 21 is a data line
  • the horizontal signal line 21 is a scan line.
  • Each vertical signal line 21 is connected to a column of sub-pixels P
  • each horizontal signal line 21 is a scan line.
  • the line 21 connects a row of sub-pixels P.
  • the signal line 21 passes through the under-screen camera and display area 11, it will move closer to the center of the under-screen camera and display area 11, so that the signal lines 21 are densely arranged in the under-screen camera and display area 11 to achieve phase
  • the interval between two adjacent signal lines 21 in the under-screen imaging display area 11 is smaller than the interval in the normal display area 12.
  • the OLED display panel of the present invention also includes a plurality of auxiliary metal lines. 23.
  • the plurality of auxiliary metal lines 23 are located in the under-screen camera display area 11, and each auxiliary metal line 23 correspondingly shields at least two consecutively arranged signal lines 21.
  • the shielding of the auxiliary metal lines 23 can effectively avoid
  • the densely arranged signal lines 21 produce undesirable optical effects and affect the under-screen imaging effect.
  • the interval between adjacent auxiliary metal lines 23 is 50 ⁇ 500um to ensure that sufficient spacing is provided to avoid light diffraction, interference and Bad optical effects such as diffraction.
  • each auxiliary metal wire 23 of the present invention is covered with a black light-shielding layer 24, which absorbs light through the black light-shielding layer 24, Reduce the reflection of the metal, so that the display panel can still maintain black without the polarizer.
  • the electronic device further includes a polarizer 2 provided on the OLED display panel 1, and the polarizer 2 is provided with an opening 201 in an area corresponding to the under-screen imaging and display area 11, and displays through under-screen imaging.
  • the area corresponding to the area 11 is provided with an opening 201, which can further increase the light transmittance of the imaging display area 11 under the screen and improve the imaging effect.
  • a planarization layer 25 is provided under the auxiliary metal line 23.
  • the planarization layer 25 corresponds to each Each auxiliary metal line 23 is formed with a groove 251.
  • Each auxiliary metal line 23 and the black light-shielding layer 24 covering the auxiliary metal line 23 are located in the corresponding groove 251.
  • the black light-shielding layer 24 The upper surface is flush with the upper surface of the planarization layer 25, so that after the black light shielding layer 24 is formed, the overall topography of the film remains flat, preventing problems such as poor climbing due to the difference in the subsequent process, and ensuring the success of the subsequent process Film quality.
  • the specific structure of the pixel area of the OLED display panel 1 of the present invention is: a substrate 101, a driving layer 100 provided on the substrate 101, and a driving layer 100 provided on the driving layer 100.
  • the plurality of signal lines 21 may be located in the same metal layer or in different metal layers.
  • the auxiliary metal line 23 and the anode 23' are arranged in the same layer, and are simultaneously formed through a patterning process
  • the pixel definition layer 24' and the black light shielding layer 24 are arranged in the same layer, and pass through a pattern
  • the chemical process is formed at the same time, that is, the material of the pixel definition layer 24' and the black light-shielding layer 24 are both black light-shielding materials.
  • anode 23' is electrically connected to the driving layer 100 through a via 252 passing through the planarization layer 25, and the process of forming the via 252 and the groove 251 on the planarization layer 25 can pass through a The halftone mask is completed at the same time.
  • the present invention provides an OLED display panel having an under-screen camera display area and a normal display area surrounding the under-screen camera display area.
  • the pixel density of the under-screen camera display area is smaller than that of the normal display area.
  • the light transmittance of the camera display area under the screen is increased to achieve a true full-screen display while shooting under the screen.
  • the present invention also provides an electronic device, which can realize true full-screen display while realizing under-screen photography.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
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  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract

一种OLED显示面板及电子装置。所述OLED显示面板具有屏下摄像显示区(11)及围绕所述屏下摄像显示区(11)的正常显示区(12)，所述屏下摄像显示区(11)的像素密度小于所述正常显示区(12)的像素密度，通过降低屏下摄像显示区(11)的像素密度，提升屏下摄像显示区(11)的透光率，以实现屏下摄像的同时实现真正的全面屏显示。

Description

OLED显示面板及电子装置 技术领域
本发明涉及显示技术领域，尤其涉及一种OLED显示面板及电子装置。
 背景技术
有机发光二极管（Organic Light Emitting Display，OLED）显示器件具有自发光、驱动电压低、发光效率高、响应时间短、清晰度与对比度高、近180°视角、使用温度范围宽，可实现柔性显示与大面积全色显示等诸多优点，被业界公认为是最有发展潜力的显示装置。
OLED显示器件属于自发光型显示设备，通常包括分别用作阳极、与阴极的像素电极、和公共电极、以及设在像素电极与公共电极之间的有机发光层，使得在适当的电压被施加于阳极与阴极时，从有机发光层发光。有机发光层包括了设于阳极上的空穴注入层、设于空穴注入层上的空穴传输层、设于空穴传输层上的发光层、设于发光层上的电子传输层、设于电子传输层上的电子注入层，其发光机理为在一定电压驱动下，电子和空穴分别从阴极和阳极注入到电子注入层和空穴注入层，电子和空穴分别经过电子传输层和空穴传输层迁移到发光层，并在发光层中相遇，形成激子并使发光分子激发，后者经过辐射弛豫而发出可见光。
随着移动电子产品行业飞速发展，新产品不断更新换代，市场对移动显示电子产品存在越来越高的期许。例如，手机等产品由有边框向窄边框和无边框的方向发展。上下无边框直接影响了前置摄像头、感光器件以及产品标识的放置，为此，各家手机/显示面板供应商通过减小边框，制作异形切割屏，如“水滴屏”、“刘海屏”、“钻孔屏”等方式逐步提高屏幕的屏占比同时完成前置摄像头、感光器件的防止，实现手机功能和美观的同步提升。然而，“水滴屏”和“刘海屏”的摄像头区域避开了显示区域，而“钻孔屏”孔内区域无法显示。
因此，不论是“水滴屏”、“刘海屏”、“钻孔屏”等方式均无法实现真正意义上的全面屏。
 技术问题
本发明的目的在于提供一种OLED显示面板，能够在实现屏下摄像的同时实现真正的全面屏显示。
本发明的目的还在于提供一种电子装置，能够在实现屏下摄像的同时实现真正的全面屏显示。
 技术解决方案
为实现上述目的，本发明提供了一种OLED显示面板，具有屏下摄像显示区及围绕所述屏下摄像显示区的正常显示区，所述屏下摄像显示区的像素密度小于所述正常显示区的像素密度。
所述OLED显示面板包括纵横交错的多条信号线，相邻的两条信号线在屏下摄像显示区内的间隔小于在正常显示区内的间隔。
所述OLED显示面板还包括多条辅助金属线及覆盖各条辅助金属线的黑色遮光层，所述多条辅助金属线位于所述屏下摄像显示区内且每一条辅助金属线均对应遮挡至少两条连续排列的信号线。
所述辅助金属线下方设有平坦化层，所述平坦化层对应每一条辅助金属线形成有一凹槽，每一条辅助金属线及覆盖该辅助金属线的黑色遮光层均位于其对应的凹槽中。
所述黑色遮光层上的上表面与所述平坦化层的上表面平齐。
本发明还提供一种电子装置，包括OLED显示面板及摄像头，所述OLED显示面板具有屏下摄像显示区及围绕所述屏下摄像显示区的正常显示区，所述屏下摄像显示区的像素密度小于所述正常显示区的像素密度，所述摄像头设于所述屏下摄像显示区下方。
所述电子装置还包括设于所述OLED显示面板上的偏光片，所述偏光片在与屏下摄像显示区对应的区域设有开口。
所述OLED显示面板包括纵横交错的多条信号线，相邻的两条信号线在屏下摄像显示区内的间隔小于在正常显示区内的间隔。
所述OLED显示面板还包括多条辅助金属线及覆盖各条辅助金属走线的黑色遮光层，所述多条辅助金属线位于所述屏下摄像显示区内且每一条辅助金属线均对应遮挡至少两条连续排列的信号线。
所述遮光金属线下方设有平坦化层，所述平坦化层对应每一条辅助金属线形成有一凹槽，每一条辅助金属线及覆盖该辅助金属线的黑色遮光层均位于其对应的凹槽中，且所述黑色遮光层上的上表面与所述平坦化层的上表面平齐。
 有益效果
本发明的有益效果：本发明提供一种OLED显示面板，具有屏下摄像显示区及围绕所述屏下摄像显示区的正常显示区，所述屏下摄像显示区的像素密度小于所述正常显示区的像素密度，通过降低屏下摄像显示区的像素密度，提升屏下摄像显示区的透光率，以实现屏下摄像的同时实现真正的全面屏显示。本发明还提供一种电子装置，能在实现屏下摄像的同时实现真正的全面屏显示。
 附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为本发明的OLED显示面板的示意图；
图2为本发明的OLED显示面板的屏下摄像显示区及正常显示区的像素分布图；
图3为本发明的OLED显示面板的屏下摄像显示区的辅助金属线位置的剖面图；
图4为本发明的OLED显示面板的屏下摄像显示区的像素区域的剖面图；
图5为本发明的电子装置的示意图。
 本发明的实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图1及图2，本发明提供一种OLED显示面板，所述OLED显示面板具有屏下摄像显示区11及围绕所述屏下摄像显示区11的正常显示区12，其中，所述屏下摄像显示区11的像素密度小于所述正常显示区12的像素密度。
如图2所示，由于屏下摄像显示区11的像素密度降低，在屏下摄像显示区11本身的尺寸不变的情况下，屏下摄像显示区11中不透光的子像素P的数量减少，能够透光的区域随着像素密度降低而增大，从而使得屏下摄像显示区11具有足够的透光率完成屏下摄像，与此同时，屏下摄像显示区11也依然能够实现显示，也即在实现屏下摄像的同时实现真正的全面屏显示。
请参阅图2，所述OLED显示面板1包括纵横交错的多条信号线21，相邻的两条信号线21在屏下摄像显示区11内的间隔小于在正常显示区12内的间隔。如图2所示，在本发明的一些实施例中，纵向的信号线21为数据线，横向的信号线21为扫描线，每一条纵向的信号线21连接一列子像素P，每一条横向的信号线21连接一行子像素P，信号线21在穿越屏下摄像显示区11时，会像屏下摄像显示区11的中央靠拢，使得信号线21在屏下摄像显示区11密集排列，以实现相邻的两条信号线21在屏下摄像显示区11内的间隔小于在正常显示区12内的间隔。
进一步地，在如图2所示的实施例中，在屏下摄像显示区11内，仅奇数行和奇数列的信号线21电性连接有子像素P，而偶数行和偶数列的信号线21直接穿越屏下摄像显示区11不连接任何子像素P，以实现降低屏下摄像显示区11中的像素密度，从而使得屏下摄像显示区11的像素密度小于所述正常显示区12的像素密度。
具体地，如图3所示，为了避免信号线21在屏下摄像显示区11密集排列而产生的衍射及绕射等不良的光学效应，本发明的OLED显示面板中还包括多条辅助金属线23，所述多条辅助金属线23位于所述屏下摄像显示区11内且每一条辅助金属线23均对应遮挡至少两条连续排列的信号线21，通过辅助金属线23的遮挡能够有效避免密集排列的信号线21产生不良的光学效应，影响屏下摄像效果，优选地，相邻的辅助金属线23之间的间隔为50~500um，以保证提供足够的间距避免光的衍射、干涉和绕射等不良的光学效应。
详细地，如图3所示，为了避免因金属反射影响屏幕的对比度和发光特性，本发明各条辅助金属线23上覆盖有黑色遮光层24，所述通过黑色遮光层24对光的吸收，减少金属的反射，使得显示面板在不贴偏光片的情况下依然能保持黑色。
如图3所示，所述辅助金属线23下方设有平坦化层25，为避免因增设黑色遮光层24而产生断差，影响后续制程的成膜质量，所述平坦化层25对应每一条均辅助金属线23形成有一凹槽251，每一条辅助金属线23及覆盖该辅助金属线23的黑色遮光层24均位于其对应的凹槽251中，优选地，所述黑色遮光层24上的上表面与所述平坦化层25的上表面平齐，使得黑色遮光层24形成之后膜层整体的地势依然保持平坦，防止后续制程因断差而出现爬坡不良等问题，保证后续制程的成膜质量。
需要说明的是，如图4所示，本发明的OLED显示面板的像素区的具体结构为：衬底101、设于所述衬底101上的驱动层100、设于所述驱动层100上的平坦化层25、设于所述平坦化层25上的阳极23’、设于所述阳极23’及平坦化层25上的像素定义层24’、形成于所述像素定义层24’中并暴露出所述阳极23’的一部分的像素定义槽251、设于所述像素定义槽251中的发光层26以及设于所述发光层26及像素定义层24’上的阴极27，其中所述驱动层100中形成有数个TFT及多条连接所述数个TFT的信号线21，根据驱动需求，所述多条信号线21可以位于同一金属层或位于不同的金属层。
结合图2及图3，所述辅助金属线23与阳极23’同层设置，且通过一道图案化制程同时形成，所述像素定义层24’及黑色遮光层24同层设置，且通过一道图案化制程同时形成，所述像素定义层24’及黑色遮光层24的材料也均为黑色遮光材料。
进一步地，所述阳极23’通过一穿越所述平坦化层25的过孔252与驱动层100电性连接，在所述平坦化层25上形成过孔252及凹槽251的过程可通过一道半色调光罩同时完成。
如图5所示，本发明还提供一种电子装置，包括OLED显示面板1及摄像头2，所述OLED显示面板1具有屏下摄像显示区11及围绕所述屏下摄像显示区11的正常显示区12，所述屏下摄像显示区11的像素密度小于所述正常显示区12的像素密度，所述摄像头2设于所述屏下摄像显示区11下方。
如图2所示，由于屏下摄像显示区11的像素密度降低，在屏下摄像显示区11本身的尺寸不变的情况下，屏下摄像显示区11中不透光的子像素P的数量减少，能够透光的区域随着像素密度降低而增大，从而使得屏下摄像显示区11具有足够的透光率完成屏下摄像，与此同时，屏下摄像显示区11也依然能够实现显示，也即在实现屏下摄像的同时实现真正的全面屏显示。
请参阅图2，所述OLED显示面板1包括纵横交错的多条信号线21，相邻的两条信号线21在屏下摄像显示区11内的间隔小于在正常显示区12内的间隔，如图2所示，在本发明的一些实施例中，纵向的信号线21为数据线，横向的信号线21为扫描线，每一条纵向的信号线21连接一列子像素P，每一条横向的信号线21连接一行子像素P，信号线21在穿越屏下摄像显示区11时，会像屏下摄像显示区11的中央靠拢，使得信号线21在屏下摄像显示区11密集排列，以实现相邻的两条信号线21在屏下摄像显示区11内的间隔小于在正常显示区12内的间隔。
进一步地，在如图2所示的实施例中，在屏下摄像显示区11内，仅奇数行和奇数列的信号线21电性连接有子像素P，而偶数行和偶数列的信号线21直接穿越屏下摄像显示区11不连接任何子像素P，以实现降低屏下摄像显示区11中的像素密度，从而使得屏下摄像显示区11的像素密度小于所述正常显示区12的像素密度。
具体地，如图3所示，为了避免信号线21在屏下摄像显示区11密集排列而产生的衍射、干涉和绕射等光学效应，本发明的OLED显示面板中还包括多条辅助金属线23，所述多条辅助金属线23位于所述屏下摄像显示区11内且每一条辅助金属线23均对应遮挡至少两条连续排列的信号线21，通过辅助金属线23的遮挡能够有效避免密集排列的信号线21产生不良的光学效应，影响屏下摄像效果，优选地，相邻的辅助金属线23之间的间隔为50~500um，以保证提供足够的间距避免光的衍射、干涉和绕射等不良的光学效应。
详细地，如图3所示，为了避免因金属反射影响屏幕的对比度和发光特性，本发明各条辅助金属线23上覆盖有黑色遮光层24，所述通过黑色遮光层24对光的吸收，减少金属的反射，使得显示面板在不贴偏光片的情况下依然能保持黑色。
进一步地，所述电子装置还包括设于所述OLED显示面板1上的偏光片2，所述偏光片2在与屏下摄像显示区11对应的区域设有开口201，通过在屏下摄像显示区11对应的区域设置开口201，能够进一步提升屏下摄像显示区11的透光率，改善摄像效果。
如图3所示，所述辅助金属线23下方设有平坦化层25，为避免因增设黑色遮光层24而产生断差，影响后续制程的成膜质量，所述平坦化层25对应每一条均辅助金属线23形成有一凹槽251，每一条辅助金属线23及覆盖该辅助金属线23的黑色遮光层24均位于其对应的凹槽251中，优选地，所述黑色遮光层24上的上表面与所述平坦化层25的上表面平齐，使得黑色遮光层24形成之后膜层整体的地势依然保持平坦，防止后续制程因断差而出现爬坡不良等问题，保证后续制程的成膜质量。
需要说明的是，如图4所示，本发明的OLED显示面板1的像素区的具体结构为：衬底101、设于所述衬底101上的驱动层100、设于所述驱动层100上的平坦化层25、设于所述平坦化层25上的阳极23’、设于所述阳极23’及平坦化层25上的像素定义层24’、形成于所述像素定义层24’中并暴露出所述阳极23’的一部分的像素定义槽241、设于所述像素定义槽241中的发光层26以及设于所述发光层26及像素定义层24’上的阴极27，其中所述驱动层100中形成有数个TFT及多条连接所述数个TFT的信号线21，根据驱动需求，所述多条信号线21可以位于同一金属层或位于不同的金属层。
结合图2及图3，所述辅助金属线23与阳极23’同层设置，且通过一道图案化制程同时形成，所述像素定义层24’及黑色遮光层24同层设置，且通过一道图案化制程同时形成，也即是说所述像素定义层24’及黑色遮光层24的材料均为黑色遮光材料。
进一步地，所述阳极23’通过一穿越所述平坦化层25的过孔252与驱动层100电性连接，在所述平坦化层25上形成过孔252及凹槽251的过程可通过一道半色调光罩同时完成。
综上所述，本发明提供一种OLED显示面板，具有屏下摄像显示区及围绕所述屏下摄像显示区的正常显示区，所述屏下摄像显示区的像素密度小于所述正常显示区的像素密度，通过降低屏下摄像显示区的像素密度，提升屏下摄像显示区的透光率，以实现屏下摄像的同时实现真正的全面屏显示。本发明还提供一种电子装置，能在实现屏下摄像的同时实现真正的全面屏显示。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (10)

  1. 一种OLED显示面板，具有屏下摄像显示区及围绕所述屏下摄像显示区的正常显示区，所述屏下摄像显示区的像素密度小于所述正常显示区的像素密度。
  2. 如权利要求1所述的OLED显示面板，包括纵横交错的多条信号线，相邻的两条信号线在屏下摄像显示区内的间隔小于在正常显示区内的间隔。
  3. 如权利要求2所述的OLED显示面板，还包括多条辅助金属线及覆盖各条辅助金属线的黑色遮光层，所述多条辅助金属线位于所述屏下摄像显示区内且每一条辅助金属线均对应遮挡至少两条连续排列的信号线。
  4. 如权利要求3所述的OLED显示面板，其中，所述辅助金属线下方设有平坦化层，所述平坦化层对应每一条辅助金属线形成有一凹槽，每一条辅助金属线及覆盖该辅助金属线的黑色遮光层均位于其对应的凹槽中。
  5. 如权利要求4所述的OLED显示面板，其中，所述黑色遮光层上的上表面与所述平坦化层的上表面平齐。
  6. 一种电子装置，包括OLED显示面板及摄像头，所述OLED显示面板具有屏下摄像显示区及围绕所述屏下摄像显示区的正常显示区，所述屏下摄像显示区的像素密度小于所述正常显示区的像素密度，所述摄像头设于所述屏下摄像显示区下方。
  7. 如权利要求6所述的电子装置，还包括设于所述OLED显示面板上的偏光片，所述偏光片在与屏下摄像显示区对应的区域设有开口。
  8. 如权利要求6所述的电子装置，其中，所述OLED显示面板包括纵横交错的多条信号线，相邻的两条信号线在屏下摄像显示区内的间隔小于在正常显示区内的间隔。
  9. 如权利要求8所述的电子装置，其中，所述OLED显示面板还包括多条辅助金属线及覆盖各条辅助金属走线的黑色遮光层，所述多条辅助金属线位于所述屏下摄像显示区内且每一条辅助金属线均对应遮挡至少两条连续排列的信号线。
  10. 如权利要求9所述的电子装置，其中，所述遮光金属线下方设有平坦化层，所述平坦化层对应每一条辅助金属线形成有一凹槽，每一条辅助金属线及覆盖该辅助金属线的黑色遮光层均位于其对应的凹槽中，且所述黑色遮光层上的上表面与所述平坦化层的上表面平齐。
PCT/CN2019/124606 2019-08-09 2019-12-11 Oled显示面板及电子装置 Ceased WO2021027201A1 (zh)

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