WO2021017276A1 - 显示面板 - Google Patents

显示面板 Download PDF

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Publication number
WO2021017276A1
WO2021017276A1 PCT/CN2019/117065 CN2019117065W WO2021017276A1 WO 2021017276 A1 WO2021017276 A1 WO 2021017276A1 CN 2019117065 W CN2019117065 W CN 2019117065W WO 2021017276 A1 WO2021017276 A1 WO 2021017276A1
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WO
WIPO (PCT)
Prior art keywords
display panel
area
array substrate
micro led
display
Prior art date
Application number
PCT/CN2019/117065
Other languages
English (en)
French (fr)
Inventor
刘凡成
查国伟
Original Assignee
武汉华星光电技术有限公司
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 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US16/623,722 priority Critical patent/US20220013597A1/en
Publication of WO2021017276A1 publication Critical patent/WO2021017276A1/zh

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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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • 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
    • 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
    • H10K59/70—OLEDs integrated with inorganic light-emitting elements, e.g. with inorganic electroluminescent elements

Definitions

  • the present invention relates to the field of display technology, and in particular to a display panel.
  • the mobile phone display when it is displayed, it usually displays fixed icons at the top position for a long time, such as time, signal, and message notification.
  • a long time such as time, signal, and message notification.
  • the top of the display when using application software, the top of the display will display a fixed head up.
  • the OLED display screen uses organic matter to emit light. If a fixed screen is displayed for a long time, there will be a burn-in defect, which will cause poor image retention at the fixed position.
  • the present invention provides a display panel, which can solve the risk of burn-in due to the OLED pixels of the existing OLED display panels that use organic matter to emit light, and display the same picture for a long time, and the low transmittance of the OLED pixels will reduce the camera under the screen.
  • the lighting effect at the place affects the imaging quality of the camera, which in turn affects the technical issues of the display.
  • the present invention provides a display panel.
  • the display panel is provided with a first display area and a second display area.
  • the display panel includes a first array substrate, a plurality of OLED pixel units, and a plurality of Micro LED pixel units;
  • the plurality of OLED pixel unit arrays are arranged on the first array substrate and arranged in the first display area;
  • the plurality of Micro LED pixel units are arrayed in the second display area, and the Micro LED
  • the LED pixel unit includes a light-emitting area and a light-transmitting area, the area of the light-transmitting area is greater than or equal to the area of the light-emitting area;
  • the first display area has an opening, and a plurality of the Micro
  • the orthographic projection of the LED pixel unit on the first array substrate is located in the opening.
  • the display panel further includes an optical electronic element disposed on the light emitting side of the display panel, and the orthographic projection of the optical electronic element on the first array substrate is located on the Inside the opening.
  • a plurality of the Micro LED pixel units are located in the opening.
  • a plurality of the Micro LED pixel units are arranged above or below the opening.
  • the display panel further includes a second array substrate, and the plurality of Micro LED pixel units are disposed on the second array substrate.
  • a touch control layer is provided on a side of the second array substrate away from the Micro LED pixel unit.
  • the first array substrate provided with the OLED pixel unit and the first array substrate provided with the Micro An adhesive layer is arranged between the second array substrates of the LED pixel unit.
  • the present invention provides another display panel provided with a first display area and a second display area, the display panel including a first array substrate, a plurality of OLED pixel units, and a plurality of Micro LED pixel units; A plurality of the OLED pixel unit arrays are arranged on the first array substrate and arranged in the first display area; a plurality of the Micro LED pixel unit arrays are arranged in the second display area, the Micro LED
  • the LED pixel unit includes a light-emitting area and a light-transmitting area.
  • the second display area is disposed above or below the first display area.
  • the first display area has an opening, and the orthographic projection of the plurality of Micro LED pixel units on the first array substrate is located in the opening.
  • the display panel further includes an optical electronic element disposed on the light emitting side of the display panel, and the orthographic projection of the optical electronic element on the first array substrate is located on the Inside the opening.
  • a plurality of the Micro LED pixel units are located in the opening.
  • a plurality of the Micro LED pixel units are arranged above or below the opening.
  • the display panel further includes a second array substrate, and the plurality of Micro LED pixel units are disposed on the second array substrate.
  • a touch control layer is provided on a side of the second array substrate away from the Micro LED pixel unit.
  • the first array substrate provided with the OLED pixel unit and the first array substrate provided with the Micro An adhesive layer is arranged between the second array substrates of the LED pixel unit.
  • the area of the light-transmitting area is greater than or equal to the area of the light-emitting area.
  • the beneficial effects of the present invention are: by replacing the OLED pixels in the corresponding area of the camera under the screen with Micro LED pixels are conducive to the lighting of the camera, thereby improving the imaging quality of the camera under the OLED screen.
  • the OLED pixels used to display fixed images are replaced with Micro LED pixels can improve the screen burn problem caused by displaying the same screen for a long time.
  • FIG. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of the structure of a first display area and a second display area according to an embodiment of the present invention
  • FIG. 3 is a top view of a Micro LED pixel unit according to an embodiment of the invention.
  • the present invention is aimed at the existing display panel. Since the pixels of the OLED display panel use organic matter to emit light, displaying the same picture for a long time may easily lead to the risk of screen burn, and the low transmittance of the OLED pixel will reduce the lighting effect at the camera under the screen , It affects the imaging quality of the camera and enters into a technical problem that affects the display. This embodiment can solve this defect.
  • an embodiment of the present invention provides a display panel 100.
  • the display panel 100 is provided with a first display area 101 and a second display area 102.
  • the first display area 101 is arranged in an array.
  • There are a plurality of OLED pixel units, and a plurality of Micro LED (Micro Light-Emitting Diode, micro light-emitting diode) pixel units are arranged in an array in the second display area 102.
  • the front camera is built into the display screen to maximize the screen-to-body ratio.
  • the sub-pixel structure cannot be made finer, which will affect the screen.
  • this embodiment improves the OLED pixel area corresponding to the camera, and replaces the OLED pixels at this place with Micro LED pixels, thereby solving the lighting problem of the under-screen camera.
  • Micro LED has similar main emission characteristics, and inorganic LED has the advantages of stability, high efficiency, long life, high brightness and small size. Therefore, Micro LED LED pixels can replace OLED pixels in a small range, and combine with OLED pixels to achieve a better full-screen display effect.
  • a in FIG. 2 is a top view of the first display area 101 and the second display area 102
  • B, C, and D in FIG. 2 are schematic cross-sectional views of three types of Micro LED pixels in different film layers.
  • D in FIG. 2 is used for description.
  • the OLED pixel unit 20 and the Micro LED pixel unit 30 are disposed on a first array substrate 10, and the first array substrate 10 drives the OLED pixel unit 20 and the Micro LED pixel unit 30.
  • the first array substrate 10 includes a substrate and a thin film transistor array disposed on the substrate.
  • the display panel includes an optical electronic element 70.
  • the optical electronic element 70 is arranged on the light-emitting side away from the display panel 100 (that is, the back of the display panel 100) and is arranged corresponding to the second display area 102.
  • the orthographic projection of the optical electronic element 70 on the first array substrate 10 is located in the opening 21.
  • the optical electronic component 70 may be an under-screen camera, an under-screen optical fingerprint recognition sensor, an under-screen optical facial recognition sensor, an optical under-screen distance sensor, etc., but is not limited thereto.
  • the first display area 101 has an opening 21, the plurality of Micro LED pixel units 30 are disposed in the opening 21, and the opening is disposed corresponding to the optical and electronic element 70, and the thickness of the display panel 100 In the direction, the second display area 102 is arranged corresponding to the opening 21, and the first display area 101 and the second display area 102 are complementary to achieve seamless docking, thereby completing the display of the entire screen together.
  • the Micro LED pixel unit 30 includes a light-emitting area 31 and a light-transmitting area 32.
  • the light-emitting area 31 is an area where the Micro LED chip is disposed, and the light-transmitting area 32 is a transparent display area. Due to the small area of the Micro LED chip, the current minimum size can achieve a width greater than 1um. Generally, the pixel size of full HD is 25 times 65 microns. The width of the Micro LED pixel unit 30 is 10 ⁇ 1000 microns. Therefore, the Micro LED The pixel 30 can retain a larger aperture ratio than an OLED pixel, and can reserve a large blank area for optical and electronic components 70 such as a camera for lighting.
  • the second display area 102 displays normally. At any time during the display, images can be collected through the light-transmitting area 32 and enter the optical and electronic components under the display panel 100 70, so as to realize various under-screen sensor designs such as under-screen fingerprint recognition, under-screen camera, under-screen recognition, and under-screen distance perception.
  • the area of the light-transmitting area 32 in the Micro LED pixel unit 30 should be greater than or equal to the area of the light-emitting area 31, that is, the area of the light-transmitting area 31 occupies at least The area of the Micro LED pixel unit 30 is 50%.
  • the Micro LED pixel unit 30 includes R pixels, G pixels, and B pixels, and can also achieve color light emission through blue Micro LEDs and color conversion materials.
  • FIG. 1 illustrates the Micro LED pixel unit 30 as an example.
  • the OLED pixel unit 20 includes R pixels, G pixels, and B pixels. In other embodiments, a light emitting mode of white light plus color conversion may also be adopted, which is not limited here.
  • the display panel 100 may be a touch display panel, the touch layer 50 is disposed on the OLED pixel unit 20 and the Micro LED pixel unit, the touch layer 50 is prepared on a substrate, and then the The touch layer 50 is bonded to the first array substrate 10 provided with the OLED pixel unit 20 and the Micro LED pixel unit, and the touch layer 50 is bonded to the first array substrate 10 through the adhesive layer 40 Together.
  • the adhesive layer 40 is made of OCA glue.
  • the OCA glue is formed on the surface of one of the substrates, and then it is bonded to the other substrate.
  • the surface of the OLED pixel unit 20 may be covered with an encapsulation layer (not shown in the figure) to isolate water and oxygen.
  • the touch layer 50 is provided with a polarizer 60 which is arranged on the outermost layer of the display panel 100 to prevent external light from passing through the cathode metal of the OLED pixel and reflecting the light back to affect contrast.
  • the Micro LED pixel unit 30 is built into the OLED pixel unit 20.
  • the Micro LED pixel unit 30 may be of an external hanging type, and the Micro LED pixel unit 30 is disposed in the opening 21.
  • the orthographic projection of the plurality of Micro LED pixel units 30 on the first array substrate 10 is located in the opening 21.
  • the second display area 102 can be disposed above the first display area 101, that is, the Micro LED pixel unit 30 is disposed on It is close to the light-emitting side of the OLED pixel unit 20.
  • the Micro LED pixel unit 30 and the touch layer 50 can be respectively disposed on two opposite sides of the same substrate.
  • the substrate is a second array substrate 80, and the second array substrate 80 is used to drive the Micro LED pixel unit 30.
  • a plurality of Micro LED chip arrays can be fixed on one side surface of the second array substrate 80 to form a plurality of Micro LED pixel units 30, and the Micro LED chips are arranged opposite to the opening 21, and the touch
  • the control layer 50 is disposed on the opposite surface of the second array substrate 80, and then the second array substrate 80 has the Micro One side surface of the LED pixel unit 30 is attached to the side surface of the first array substrate 10 having the OLED pixel unit 20, so that the Micro LED pixel unit 30 is disposed on the touch layer 50 and the Between the OLED pixel units 20.
  • the side surface of the second array substrate 80 having the touch layer 50 can be combined with the surface of the first array substrate 10 having the OLED pixel unit 20 One side surface is attached so that the touch layer 50 is disposed between the Micro LED pixel unit 30 and the OLED pixel unit 20.
  • the second display area 102 can be disposed below the first display area 101, and the Micro LED pixel unit 30 can be disposed under
  • the first array substrate 10 has a side facing away from the OLED pixel unit 20 and is arranged corresponding to the opening 21, so that the orthographic projection of the Micro LED pixel unit 30 on the first array substrate 10 is located Inside the opening 21.
  • the Micro LED pixel unit 30 is disposed on the second array substrate 80, and the first array substrate 10 and the second array substrate 80 drive the OLED pixel unit 20 and the Micro LED pixel unit respectively 30.
  • the Micro LED pixel unit 30 when the Micro LED pixel unit 30 is disposed on a side surface of the second array substrate 80 away from the first array substrate 10, the first array substrate 10 and the second array substrate 10
  • the array substrate 80 can share the same substrate, and the thin film transistor arrays of the first array substrate 10 and the second array substrate 80 are respectively disposed on both sides of the substrate.
  • the Micro LED pixel unit 30 When the Micro LED pixel unit 30 is disposed on the side surface of the second array substrate 80 close to the first array substrate 10, the first array substrate 10 and the second array substrate 80 pass OCA glue fit.
  • the first display area 101 may not be provided with an opening, and the orthographic projection of the first display area 101 on the first array substrate 10 is similar to that of the display panel 100.
  • the Micro LED pixel unit 30 When the second display area 102 displays a dynamic image, the Micro LED pixel unit 30 does not display, and the OLED pixel unit 20 covering the area below it displays; when the second display area 102 displays a fixed image, such as a lock screen After displaying the time, date, and the header and logo when the application is opened, the Micro LED pixel unit 30 displays, but the OLED pixel unit 20 covering the area below it does not display.
  • Micro LED pixel unit 30 Since the Micro LED pixel unit 30 has a relatively high transmittance, it has less influence on the display of the OLED pixel unit 20 covering the part below.
  • the second display area 102 can be arranged in the upper frame area of the display panel 100, and the Micro LED pixel unit 30 is used to display time, date, and application programs for a long time. Heads, logos, etc.
  • the second display area 102 may also be arranged at the first display area.
  • the specific film structure can refer to the above-mentioned embodiment, which will not be repeated here.
  • the second display area 102 and the first display area 101 may be displayed in splicing, and the second display area 102 and the first display area 101 There is no overlapping surface in the thickness direction of the display panel 100, and the sum of the orthographic projections of the first display area 101 and the second display area 102 on the first array substrate 10 is the same as that of the display panel The entire display area of 100 completely overlaps. Since the second display area 102 and the first display area 101 are seamlessly connected, there will be no display interruption or discontinuous borders visually, and a full-screen design can be realized.
  • part of the Micro LED pixel unit 30 in the second display area 102 can be used as a supplementary light and indicator light.
  • the second display area 102 may be set in the area corresponding to the optical electronic element 70, or may be set in the area where a fixed screen needs to be displayed for a long time, or both designs may be considered at the same time.
  • the structure can be designed according to actual needs.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract

一种显示面板，其上设置有第一显示区域和第二显示区域，显示面板包括设置于第一显示区域的多个OLED像素单元以及设置于第二显示区域的多个Micro LED像素单元。通过将屏下摄像头对应区域的OLED像素或者将用于显示固定画面的OLED像素替换为Micro LED像素，从而改善OLED屏下摄像头的成像质量和改善长时间显示同一画面导致的易烧屏的问题。

Description

显示面板 技术领域
本发明涉及显示技术领域，尤其涉及一种显示面板。
 背景技术
随着显示技术的高速发展，追求高的屏占比成为显示行业的主流，目前出现的屏下指纹、屏下摄像头等技术，均是为了实现触摸或者摄像功能的同时不影响显示。对于屏下摄像头处兼顾显示的全面屏设计方案，OLED（Organic Light-Emitting Diode，有机发光二极管）相对于LCD（liquid crystal display，液晶显示屏）具有天然的优势，但是OLED也受限于其像素结构，子像素无法做到更精细，因此会影响屏下摄像头处的整体透过率，最终影响摄像头成像质量。
另外，手机显示屏在显示的时候，一般在顶部位置会长时间显示固定图标，比如时间、信号、以及消息通知等，再比如，在使用应用软件时，显示屏的顶部会显示固定抬头等。OLED显示屏是采用有机物发光，若长时间显示固定画面，存在烧机的缺陷，进而造成固定位置残影不良。
 技术问题
本发明提供一种显示面板，能够解决现有的OLED显示面板由于OLED像素是采用有机物发光，长时间显示相同的画面易导致烧屏的风险，且OLED像素的透过率低会降低屏下摄像头处的采光效果，影响摄像头的成像质量，进而影响显示的技术问题。
 技术解决方案
为解决上述问题，本发明提供的技术方案如下：
本发明提供一种显示面板，所述显示面板上设置有第一显示区域和第二显示区域，所述显示面板包括第一阵列基板、多个OLED像素单元、以及多个Micro LED像素单元；所述多个OLED像素单元阵列设置于所述第一阵列基板上且设置于所述第一显示区域内；所述多个Micro LED像素单元，阵列设置于所述第二显示区域内，所述Micro LED像素单元包括发光区和透光区，所述透光区面积大于或等于所述发光区面积；所述第一显示区域具有一开口，多个所述Micro LED像素单元在所述第一阵列基板上的正投影位于所述开口内。
在本发明的至少一种实施例中，所述显示面板还包括设置于背离所述显示面板发光侧的光学电子元件，所述光学电子元件在所述第一阵列基板上的正投影位于所述开口内。
在本发明的至少一种实施例中，多个所述Micro LED像素单元位于所述开口内。
在本发明的至少一种实施例中，多个所述Micro LED像素单元设置于所述开口的上方或下方。
在本发明的至少一种实施例中，所述显示面板还包括第二阵列基板，所述多个Micro LED像素单元设置于所述第二阵列基板上。
在本发明的至少一种实施例中，所述第二阵列基板背离所述Micro LED像素单元的一侧设置有触控层。
在本发明的至少一种实施例中，设置有所述OLED像素单元的所述第一阵列基板与设置有所述Micro LED像素单元的所述第二阵列基板之间设置有粘合层。
本发明提供另外一种显示面板，所述显示面板上设置有第一显示区域和第二显示区域，所述显示面板包括第一阵列基板、多个OLED像素单元、以及多个Micro LED像素单元；多个所述OLED像素单元阵列设置于所述第一阵列基板上且设置于所述第一显示区域内；多个所述Micro LED像素单元阵列设置于所述第二显示区域内，所述Micro LED像素单元包括发光区和透光区。
在本发明的至少一种实施例中，所述第二显示区域设置于所述第一显示区域的上方或下方。
在本发明的至少一种实施例中，所述第一显示区域具有一开口，多个所述Micro LED像素单元在所述第一阵列基板上的正投影位于所述开口内。
在本发明的至少一种实施例中，所述显示面板还包括设置于背离所述显示面板发光侧的光学电子元件，所述光学电子元件在所述第一阵列基板上的正投影位于所述开口内。
在本发明的至少一种实施例中，多个所述Micro LED像素单元位于所述开口内。
在本发明的至少一种实施例中，多个所述Micro LED像素单元设置于所述开口的上方或下方。
在本发明的至少一种实施例中，所述显示面板还包括第二阵列基板，所述多个Micro LED像素单元设置于所述第二阵列基板上。
在本发明的至少一种实施例中，所述第二阵列基板背离所述Micro LED像素单元的一侧设置有触控层。
在本发明的至少一种实施例中，设置有所述OLED像素单元的所述第一阵列基板与设置有所述Micro LED像素单元的所述第二阵列基板之间设置有粘合层。
在本发明的至少一种实施例中，在一个所述Micro LED像素单元中，所述透光区面积大于或等于所述发光区面积。
 有益效果
本发明的有益效果为：通过将屏下摄像头对应区域的OLED像素替换为Micro LED像素，有利于摄像头采光，从而改善OLED屏下摄像头的成像质量，另外，将用于显示固定画面的OLED像素替换为Micro LED像素，能够改善长时间显示同一画面导致的易烧屏的问题。
 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发明的一些实施例，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为本发明实施例的显示面板的结构示意图；
图2为本发明实施例的第一显示区域和第二显示区域的结构示意图；
图3为本发明实施例的Micro LED像素单元的俯视图；
图4~图8为本发明其他实施例的结构示意图。
 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，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，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发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
本发明针对现有的显示面板，由于OLED显示面板的像素是采用有机物发光，长时间显示相同的画面易导致烧屏的风险，且OLED像素的透过率低会降低屏下摄像头处的采光效果，影响摄像头的成像质量，进入影响显示的技术问题，本实施例能够解决该缺陷。
如图1和图2所示，本发明实施例提供一种显示面板100，所述显示面板100上设置有第一显示区域101和第二显示区域102，所述第一显示区域101内阵列设置有多个OLED像素单元，所述第二显示区域102内阵列设置有多个Micro LED（Micro Light-Emitting Diode，微型发光二极管）像素单元。
现有技术通过将前置摄像头内置于显示屏幕中，从而实现屏占比的最大化，但对于OLED显示面板来说，受限于现有技术，子像素结构无法做到更精细，会影响屏下摄像头处的整体透过率，本实施例对与摄像头对应的OLED像素区域进行改进，将该处的OLED像素替换为Micro LED像素，从而解决屏下摄像头的采光问题。Micro LED相较于OLED，具有相似的主发光特性，且无机LED具有稳定性、效率高、寿命长、亮度高、尺寸小等优势，因此Micro LED像素可以小范围地替代OLED像素，与OLED像素结合共同实现更优的全面屏显示效果。
如图2所示，图2中的A为第一显示区域101和第二显示区域102的俯视图，图2中的B、C、D分别为三种处于不同膜层的Micro LED像素的剖面示意图，本实施例以图2中的D进行说明。
所述OLED像素单元20和所述Micro LED像素单元30设置于第一阵列基板10上，所述第一阵列基板10驱动所述OLED像素单元20和所述Micro LED像素单元30。
所述第一阵列基板10包括基板和设置于所述基板上的薄膜晶体管阵列。
所述显示面板包括光学电子元件70，所述光学电子元件70设置于背离所述显示面板100发光侧（即所述显示面板100的背面），且与所述第二显示区域102对应设置，所述光学电子元件70在所述第一阵列基板10上的正投影位于所述开口21内。
所述光学电子元件70可以为屏下摄像头、屏下光学指纹识别传感器、屏下光学面部识别传感器、光学屏下距离传感器等，但不限于此。
所述第一显示区域101具有一开口21，所述多个Micro LED像素单元30设置于所述开口21内，所述开口与所述光学电子元件70对应设置，在所述显示面板100的厚度方向上，所述第二显示区域102对应于所述开口21设置，且所述第一显示区域101与所述第二显示区域102互补实现无缝对接，从而一起完成整个画面的显示。
如图3所示，所述Micro LED像素单元30包括发光区31和透光区32，所述发光区31为设置Micro LED芯片区域，所述透光区32为透明显示区域。由于Micro LED芯片的面积较小，目前最小尺寸可实现大于1um的宽度，一般全高清的像素尺寸为25乘以65微米，所述Micro LED像素单元30的宽度为10~1000微米，因此Micro LED像素30能够保留较于OLED像素较大的开口率，能够预留出大片的空白区域用于摄像头等光学电子元件70进行采光。
在所述Micro LED像素单元30打开时，所述第二显示区域102正常显示，在显示的任意时刻，可透过所述透光区32采集图像，进入所述显示面板100下方的光学电子元件70，从而实现屏下指纹识别、屏下摄像头、屏下面部识别、屏下距离感知等各种屏下传感设计。
为了保证光学电子元件70足够的采光区域，所述Micro LED像素单元30中的所述透光区32的面积应大于或等于所述发光区31面积，即所述透光区31面积至少占所述Micro LED像素单元30面积的50%。
所述Micro LED像素单元30包括R像素、G像素、B像素，也可通过蓝色Micro LED和颜色转换材料实现彩色发光，图1以一个所述Micro LED像素单元30进行示例性说明。
所述OLED像素单元20包括R像素、G像素、B像素，在其他实施例中也可采取白光加颜色转换的发光方式，这里不做限制。
所述显示面板100可为触控显示面板，触控层50设置于所述OLED像素单元20和所述Micro LED像素单元上，所述触控层50制备于一基板上，然后再将所述触控层50与设置有所述OLED像素单元20和所述Micro LED像素单元的第一阵列基板10进行贴合，所述触控层50通过粘合层40与所述第一阵列基板10贴合。所述粘合层40材料为OCA胶，将OCA胶形成于中的一块基板表面，再将其与另一块基板贴合。
所述OLED像素单元20表面可覆盖有封装层（图中未示出），用以隔绝水氧。
所述触控层50上设置有偏光片60，所述偏光片60设置于所述显示面板100的最外层，避免外界光经过OLED像素的阴极金属，将光反射回来从而影响对比度。
在本实施中，所述Micro LED像素单元30内置于所述OLED像素单元20上，在其他实施例中，所述Micro LED像素单元30可为外挂式，将Micro LED像素单元30设置于开口21的上方或下方，且应满足多个所述Micro LED像素单元30在所述第一阵列基板10上的正投影位于所述开口21内。
请参照图2中的B与图4，在本实施例的基础上，可将所述第二显示区域102设置于所述第一显示区域101的上方，即将所述Micro LED像素单元30设置于靠近所述OLED像素单元20的发光侧。
所述Micro LED像素单元30与所述触控层50可分别设置于同一基板的两相对侧，该基板为第二阵列基板80，所述第二阵列基板80用以驱动所述Micro LED像素单元30。
具体地，可将多个Micro LED芯片阵列固定于所述第二阵列基板80的一侧表面从而形成多个Micro LED像素单元30，且该Micro LED芯片于所述开口21相对设置，所述触控层50设置于所述第二阵列基板80相对的另一侧表面，之后将所述第二阵列基板80的具有所述Micro LED像素单元30的一侧表面与所述第一阵列基板10的具有所述OLED像素单元20的一侧表面贴合，使得所述Micro LED像素单元30设置于所述触控层50与所述OLED像素单元20之间。
如图5所示，在其他实施例中，可将所述第二阵列基板80的具有所述触控层50的一侧表面与所述第一阵列基板10的具有所述OLED像素单元20的一侧表面贴合，使得所述触控层50设置于所述Micro LED像素单元30与所述OLED像素单元20之间。
请参照图2中的C和图6，在本实施例的基础上，可将所述第二显示区域102设置于所述第一显示区域101的下方，将所述Micro LED像素单元30设置于所述第一阵列基板10的背离所述OLED像素单元20的一侧，且与所述开口21对应设置，使得所述Micro LED像素单元30在所述第一阵列基板10上的正投影，位于所述开口21内。
其中，所述Micro LED像素单元30设置于所述第二阵列基板80上，所述第一阵列基板10和所述第二阵列基板80分别驱动所述OLED像素单元20和所述Micro LED像素单元30。
如图6所示，当所述Micro LED像素单元30设置于所述第二阵列基板80的远离所述第一阵列基板10的一侧表面时，所述第一阵列基板10和所述第二阵列基板80可共用同一张基板，所述第一阵列基板10和所述第二阵列基板80的薄膜晶体管阵列分别设置于该基板的两侧表面。
当所述Micro LED像素单元30设置于所述第二阵列基板80的靠近所述第一阵列基板10的一侧表面时，所述第一阵列基板10与所述第二阵列基板80通过OCA胶贴合。
如图7所示，在本实施例的基础上，所述第一显示区域101可不设置开口，所述第一显示区域101在所述第一阵列基板10上的正投影与所述显示面板100的整个显示区域重合，所述第二显示区域102设置于所述第一显示区域101的出光面的一侧（第一显示区域101的上方），且所述第二显示区域102设置于所述显示面板100的用于长时间显示固定画面的区域，在长时间显示固定画面时，使用Micro LED代替OLED显示，改善OLED长时间点亮导致的烧屏问题。
当第二显示区域102显示动态画面时，所述Micro LED像素单元30不进行显示，其下方覆盖区域的OLED像素单元20进行显示；当所述第二显示区域102显示固定画面时，如锁屏后显示时间、日期、以及应用程序打开时的抬头、logo时，所述Micro LED像素单元30进行显示，其下方覆盖区域的OLED像素单元20不进行显示。
由于Micro LED像素单元30具有较高的穿透率，因此对于下方覆盖部分的所述OLED像素单元20的显示影响较小。
如图8中的A’所示，可将所述第二显示区域102设置于所述显示面板100的上边框区域，所述Micro LED像素单元30用于长时间固定显示时间、日期、应用程序的抬头、logo等。
如图8中的C’、D’所示，除了将所述第二显示区域102设置于所述第一显示区域101的上方时，还可将所述第二显示区域102设置于所述第一显示区域101的下方，具体膜层结构可参照上述实施例，这里不再赘述。
如图8中的B’所示，在其他实施例中，所述第二显示区域102和所述第一显示区域101可拼接显示，所述第二显示区域102和所述第一显示区域101在所述显示面板100的厚度方向上没有交叠面，且所述第一显示区域101和所述第二显示区域102在所述第一阵列基板10上的正投影之和与所述显示面板100的整个显示区域完全重合。由于所述第二显示区域102和所述第一显示区域101无缝衔接，因此在视觉上不会有任何显示中断及不连续边界的情况发生，进而可实现全面屏设计。
另外，由于Micro LED具有高亮度、长寿命等特征，可采用所述第二显示区域102内的部分Micro LED像素单元30兼做补光灯和指示灯等功能。
可以理解的是，所述第二显示区域102既可以设置在与所述光学电子元件70对应的区域，也可设置在需要长时间显示固定画面的区域，也可同时兼顾该两种设计，具体结构可根据实际需求来设计。
有益效果：通过将屏下摄像头对应区域的OLED像素替换为Micro LED像素，有利于摄像头采光，从而改善OLED屏下摄像头的成像质量，另外，将用于显示固定画面的OLED像素替换为Micro LED像素，能够改善长时间显示同一画面导致的易烧屏的问题。
综上所述，虽然本发明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发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (17)

  1. 一种显示面板，其中，所述显示面板上设置有第一显示区域和第二显示区域，所述显示面板包括：
    第一阵列基板；
    多个OLED像素单元，阵列设置于所述第一阵列基板上且设置于所述第一显示区域内；以及
    多个Micro LED像素单元，阵列设置于所述第二显示区域内，所述Micro LED像素单元包括发光区和透光区，所述透光区面积大于或等于所述发光区面积；
    所述第一显示区域具有一开口，多个所述Micro LED像素单元在所述第一阵列基板上的正投影位于所述开口内。
  2. 根据权利要求1所述的显示面板，其中，所述显示面板还包括设置于背离所述显示面板发光侧的光学电子元件，所述光学电子元件在所述第一阵列基板上的正投影位于所述开口内。
  3. 根据权利要求1所述的显示面板，其中，多个所述Micro LED像素单元位于所述开口内。
  4. 根据权利要求1所述的显示面板，其中，多个所述Micro LED像素单元设置于所述开口的上方或下方。
  5. 根据权利要求4所述的显示面板，其中，所述显示面板还包括第二阵列基板，所述多个Micro LED像素单元设置于所述第二阵列基板上。
  6. 根据权利要求5所述的显示面板，其中，所述第二阵列基板背离所述Micro LED像素单元的一侧设置有触控层。
  7. 根据权利要求6所述的显示面板，其中，设置有所述OLED像素单元的所述第一阵列基板与设置有所述Micro LED像素单元的所述第二阵列基板之间设置有粘合层。
  8. 一种显示面板，其中，所述显示面板上设置有第一显示区域和第二显示区域，所述显示面板包括：
    第一阵列基板；
    多个OLED像素单元，阵列设置于所述第一阵列基板上且设置于所述第一显示区域内；以及
    多个Micro LED像素单元，阵列设置于所述第二显示区域内，所述Micro LED像素单元包括发光区和透光区。
  9. 根据权利要求8所述的显示面板，其中，所述第二显示区域设置于所述第一显示区域的上方或下方。
  10. 根据权利要求8所述的显示面板，其中，所述第一显示区域具有一开口，多个所述Micro LED像素单元在所述第一阵列基板上的正投影位于所述开口内。
  11. 根据权利要求10所述的显示面板，其中，所述显示面板还包括设置于背离所述显示面板发光侧的光学电子元件，所述光学电子元件在所述第一阵列基板上的正投影位于所述开口内。
  12. 根据权利要求10所述的显示面板，其中，多个所述Micro LED像素单元位于所述开口内。
  13. 根据权利要求10所述的显示面板，其中，多个所述Micro LED像素单元设置于所述开口的上方或下方。
  14. 根据权利要求13所述的显示面板，其中，所述显示面板还包括第二阵列基板，所述多个Micro LED像素单元设置于所述第二阵列基板上。
  15. 根据权利要求14所述的显示面板，其中，所述第二阵列基板背离所述Micro LED像素单元的一侧设置有触控层。
  16. 根据权利要求15所述的显示面板，其中，设置有所述OLED像素单元的所述第一阵列基板与设置有所述Micro LED像素单元的所述第二阵列基板之间设置有粘合层。
  17. 根据权利要求8所述的显示面板，其中，在一个所述Micro LED像素单元中，所述透光区面积大于或等于所述发光区面积。
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