WO2020228301A1 - 显示面板和电子设备 - Google Patents

显示面板和电子设备 Download PDF

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Publication number
WO2020228301A1
WO2020228301A1 PCT/CN2019/122528 CN2019122528W WO2020228301A1 WO 2020228301 A1 WO2020228301 A1 WO 2020228301A1 CN 2019122528 W CN2019122528 W CN 2019122528W WO 2020228301 A1 WO2020228301 A1 WO 2020228301A1
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WO
WIPO (PCT)
Prior art keywords
light
layer
display panel
electrochromic material
transmitting
Prior art date
Application number
PCT/CN2019/122528
Other languages
English (en)
French (fr)
Inventor
蔡振飞
Original Assignee
深圳市华星光电半导体显示技术有限公司
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 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Priority to US16/620,874 priority Critical patent/US11719989B2/en
Publication of WO2020228301A1 publication Critical patent/WO2020228301A1/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
    • H10K59/10—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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
    • 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
    • H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements

Definitions

  • This application relates to the field of electronic display, and in particular to a display panel and electronic equipment.
  • the transparent display screen can be compatible with light transmission and display, that is, it can display the picture without blocking the objects behind the display screen, so it has a wide range of application prospects in commercial display.
  • the background brightness of the display screen also increases, resulting in low contrast between the light in the display area and the light in the light-transmitting area, resulting in poor display effects.
  • the decrease in contrast will cause the pattern on the display screen to be indistinguishable by the user and affect the display effect.
  • the present application provides a display panel and an electronic device to improve the contrast between the display area and the non-display area of the transparent display screen in a high-brightness environment.
  • the present application provides a display panel, the display panel including:
  • At least one display area the display area including a plurality of pixels
  • At least one light-transmitting area the light-transmitting area is arranged adjacent to the display area, and the light-transmitting area includes a laminated light-transmitting film; wherein,
  • the light-transmitting area further includes a light-transmittance adjusting layer located between any two adjacent light-transmitting films.
  • the light transmittance adjustment layer includes:
  • An electrochromic material the light transmittance of the electrochromic material is related to the voltage across the electrochromic material
  • the first adjustment electrode and the second adjustment electrode, the first adjustment electrode and the second adjustment electrode are located on two opposite surfaces of the electrochromic material, and are used to adjust the voltage across the electrochromic material.
  • the electrochromic material includes an organic electrochromic material and an inorganic electrochromic material; wherein,
  • the organic electrochromic material includes one or a combination of tungsten trioxide, molybdenum oxide and iridium oxide;
  • the inorganic electrochromic material includes one or a combination of polythiophenes and their derivatives, viologens, tetrathiafulvalene, and metal phthalocyanine compounds.
  • the display panel further includes a brightness detection unit configured to detect the brightness of the environment in which the display panel is located;
  • an electrical signal for reducing the brightness of the light transmittance adjustment layer is sent out.
  • the threshold brightness is greater than or equal to 60% of the current display brightness of the display panel.
  • the display panel includes a plurality of display areas and a plurality of light-transmitting areas, and the display area and the light-transmitting area are arranged at intervals.
  • the display area includes:
  • a thin film transistor layer, the thin film transistor layer is located on the substrate;
  • a light-emitting layer, the light-emitting layer is located on the thin film transistor layer;
  • Color film layer the color film layer is located on the light-emitting layer; wherein,
  • the thin film transistor layer includes a transparent insulating layer stacked in multiple layers, and the light-transmitting film in the light-transmitting area includes an extension of the multilayer transparent insulating layer to the outside of the thin film transistor layer.
  • the light transmittance adjusting layer is located between any two transparent insulating layers extending to the outside of the thin film transistor layer.
  • the light-emitting layer includes a pixel definition layer made of a transparent insulating material, and the light transmittance adjustment layer is located in the pixel definition layer.
  • the light transmittance adjustment layer is located above the light-emitting layer and is spaced apart from the color filter layer.
  • the present application also provides an electronic device, the electronic device includes a display panel, and the display panel includes:
  • At least one display area the display area including a plurality of pixels
  • At least one light-transmitting area the light-transmitting area is arranged adjacent to the display area, and the light-transmitting area includes a laminated light-transmitting film; wherein,
  • the light-transmitting area further includes a light-transmittance adjusting layer located between any two adjacent light-transmitting films.
  • the electronic device includes a transparent display cabinet.
  • the light transmittance adjustment layer includes:
  • An electrochromic material the light transmittance of the electrochromic material is related to the voltage across the electrochromic material
  • the first adjustment electrode and the second adjustment electrode, the first adjustment electrode and the second adjustment electrode are located on two opposite surfaces of the electrochromic material, and are used to adjust the voltage across the electrochromic material.
  • the electrochromic material includes an organic electrochromic material and an inorganic electrochromic material; wherein,
  • the organic electrochromic material includes one or a combination of tungsten trioxide, molybdenum oxide and iridium oxide;
  • the inorganic electrochromic material includes one or a combination of polythiophenes and their derivatives, viologens, tetrathiafulvalene, and metal phthalocyanine compounds.
  • the display panel further includes a brightness detection unit configured to detect the brightness of the environment in which the display panel is located;
  • an electrical signal for reducing the brightness of the light transmittance adjustment layer is sent out.
  • the threshold brightness is greater than or equal to 60% of the current display brightness of the display panel.
  • the display panel includes a plurality of display areas and a plurality of light-transmitting areas, the display area and the light-transmitting area are arranged at intervals; wherein, the display area includes:
  • a thin film transistor layer, the thin film transistor layer is located on the substrate;
  • a light-emitting layer, the light-emitting layer is located on the thin film transistor layer;
  • Color film layer the color film layer is located on the light-emitting layer; wherein,
  • the thin film transistor layer includes a transparent insulating layer stacked in multiple layers, and the light-transmitting film in the light-transmitting area includes an extension of the multilayer transparent insulating layer to the outside of the thin film transistor layer.
  • the light transmittance adjusting layer is located between any two transparent insulating layers extending to the outside of the thin film transistor layer.
  • the light-emitting layer includes a pixel definition layer made of a transparent insulating material, and the light transmittance adjustment layer is located in the pixel definition layer.
  • the light transmittance adjustment layer is located above the light-emitting layer and is spaced apart from the color filter layer.
  • a light transmittance adjusting layer is provided in the light transmitting area of the transparent display panel.
  • the brightness of the light transmittance adjusting layer can reduce the light transmittance of the light-transmitting area when the brightness of the external environment exceeds the threshold brightness, thereby reducing the brightness of the light-transmitting area and improving the contrast between the display area and the non-display area.
  • the present application can avoid the decrease in contrast of the display panel in a high-brightness environment, and improve the display effect of the display panel in a high-brightness environment.
  • FIG. 1 is a schematic structural diagram of a display panel in a specific embodiment of the application
  • FIG. 2 is an enlarged schematic diagram of the light transmittance adjusting layer in FIG. 1;
  • FIG. 3 is a schematic structural diagram of a display panel in a second specific embodiment of the application.
  • FIG. 4 is a schematic structural diagram of a display panel in a third specific embodiment of the application.
  • the present application provides a display panel to improve the contrast between the display area and the non-display area of the transparent display screen in a high-brightness environment.
  • FIG. 1 is a schematic structural diagram of a display panel in a specific embodiment of the application.
  • the display panel includes: at least one display area A and at least one light-transmitting area B.
  • the display panel includes a plurality of display areas A and a plurality of light-transmitting areas B, and the display area A and the light-transmitting area B are arranged at intervals.
  • the display area A includes a plurality of pixel points, the light-transmitting area B is arranged adjacent to the display area A, and the light-transmitting area B includes light-transmitting films laminated and arranged.
  • FIG. 1 exemplarily shows the structure of a pixel in the display area A. In practice, the display area A may include a plurality of adjacently arranged pixels. FIG. 1 is only used to explain the application and cannot be understood as Restrictions on this application.
  • the display area A includes:
  • a thin film transistor layer 20, the thin film transistor layer 20 is located on the substrate 10;
  • a light-emitting layer 30, the light-emitting layer 30 is located on the thin film transistor layer 20;
  • the color film layer 50 is located on the light-emitting layer; wherein,
  • the thin film transistor layer 20 includes a transparent insulating layer stacked in multiple layers, and the light-transmitting film in the light-transmitting area B includes an extension of the multilayer transparent insulating layer to the outside of the thin film transistor layer.
  • the thin film transistor layer 20 includes: a light-shielding metal layer 202, a buffer layer 201, an active region 203, a gate stack 205, an interlayer dielectric layer 204, a source and drain metal layer 206, and a first planarization Layer 207 and a second planarization layer 208.
  • the buffer layer 201, the interlayer dielectric layer 204, the first planarization layer 207, and the second planarization layer 208 are all transparent insulating layers.
  • the light shielding metal layer 202 is located on the substrate 10.
  • the buffer layer 201 covers the light shielding metal layer.
  • the active region 203 is located on the buffer layer 201, and the active region 203 includes a channel region and source and drain regions located on both sides of the channel region.
  • the gate stack 205 includes a gate dielectric layer and a gate metal layer, and the gate stack 205 covers the channel region.
  • the interlayer dielectric layer 204 covers the active region 203 and the gate stack 205, and the interlayer dielectric layer 204 has through holes exposing the source region and the drain region.
  • the source-drain metal layer 206 is located above the interlayer dielectric layer 204 and is electrically connected to the source region and the drain region through the through hole.
  • the first planarization layer 207 and the second planarization layer 208 are located on the interlayer dielectric layer 204 and have through holes exposing the source and drain metal layers 206.
  • the light-emitting layer 30 includes: a pixel defining layer 301, an anode 302, a light-emitting material layer 303, and a cathode 304.
  • the anode 302 is located above the second planarization layer 208 and is electrically connected to the source and drain metal layer 206 of the thin film transistor layer 20 through the through hole.
  • the pixel definition layer is located above the second planarization layer 208 and has an opening exposing the anode 302.
  • the luminescent material layer 303 is located in the opening and covers the anode 302.
  • the cathode 304 covers the luminescent material layer 303.
  • the display panel in the application further includes an encapsulation layer 40 covering the light-emitting layer 30.
  • the packaging layer has a 40-bit film packaging structure.
  • the color filter layer 50 includes a color filter 501 and a black shading block 502 for isolating the color filter 501.
  • the height of the color filter 501 and the black light shielding block 502 are the same.
  • the height of the black shading block 502 is greater than the thickness of the color filter 501.
  • the display panel in the application further includes a cover plate 60 covering the color filter layer 50.
  • the cover plate is preferably a glass cover plate.
  • the cover 60 is also integrated with a touch unit.
  • the light-transmitting area B includes light-transmitting films laminated and arranged.
  • the light-transmitting film in the light-transmitting area B is formed by extending the transparent insulating layer in the display area A. Specifically, it includes a buffer layer 201, an interlayer dielectric layer 204, a first planarization layer 207, and a second planarization layer 208.
  • the light-transmitting area B further includes a light-transmittance adjusting layer 72 located between any two adjacent light-transmitting films.
  • FIG. 2 is an enlarged schematic diagram of the light transmittance adjusting layer in FIG. 1.
  • the light transmittance adjusting layer 72 includes an electrochromic material 720 and an adjusting electrode 722.
  • the light transmittance of the electrochromic material 720 is related to the voltage across the electrochromic material 720.
  • the adjusting electrode 722 includes a first adjusting electrode and a second adjusting electrode.
  • the first adjusting electrode and the second adjusting electrode are located on two opposite surfaces of the electrochromic material 720 for adjusting the electrochromic material.
  • the first adjustment electrode and the second adjustment electrode are transparent electrodes.
  • the electrochromic materials include organic electrochromic materials and inorganic electrochromic materials.
  • the organic electrochromic material includes one or a combination of tungsten trioxide, molybdenum oxide and iridium oxide.
  • the inorganic electrochromic material includes one or a combination of polythiophenes and their derivatives, viologens, tetrathiafulvalene, and metal phthalocyanine compounds.
  • the above-mentioned materials are all electroluminescent materials with two-way reversible colors. When no voltage is applied, the electrochromic material is in a transparent state. After the voltage causing the discoloration is eliminated, the electrochromic material returns to a transparent state again.
  • the display panel further includes a brightness detection unit configured to detect the brightness of the environment in which the display panel is located. When it is detected that the environmental brightness is higher than the threshold brightness, an electrical signal for reducing the brightness of the light transmittance adjustment layer 72 is sent out.
  • a stable DC voltage is applied to both ends of the first adjustment electrode and the second adjustment electrode of the light transmittance adjustment layer 72, and the DC voltage is capable of The voltage at which the electrochromic material 720 changes from a transparent state to a non-transparent state.
  • the threshold brightness is greater than or equal to 60% of the current display brightness of the display panel.
  • the threshold brightness can be adjusted according to different display requirements. For example, in order to obtain a better display effect, the threshold brightness can be set to 50% or lower to further enhance the display area and non-display area. The brightness is poor.
  • the light transmittance adjusting layer 72 is located between any two transparent insulating layers extending to the outside of the thin film transistor layer.
  • the number of the light transmittance adjustment layers can also be set according to needs. The more the number of light transmittance adjustment layers, the larger the adjustment range, and the better the corresponding display effect.
  • the display panel includes a light transmittance adjustment layer 72 and an auxiliary dimming layer 74.
  • the light transmittance adjusting layer 72 is located above the light-emitting layer and is spaced apart from the color film layer.
  • the auxiliary dimming layer 74 is located in the buffer layer 201.
  • the display panel includes a second light transmittance adjustment layer 76 and an auxiliary dimming layer 74.
  • the second light transmittance adjusting layer 76 is located in the pixel definition layer.
  • the auxiliary dimming layer 74 is located in the buffer layer 201.
  • the embodiment of the present application only symbolically enumerates the possible positions and number of the light transmittance adjusting layer. In practice, the number and positions of the light transmittance adjustment layers can be set as required.
  • the above-mentioned embodiments are only used to illustrate the application, and cannot be understood as a limitation to the application.
  • the present application also provides an electronic device including the display panel as described above.
  • the electronic device may be a transparent display cabinet.
  • a light transmittance adjusting layer 2 is provided in the light transmitting area of the transparent display panel.
  • the brightness of the light transmittance adjusting layer can reduce the light transmittance of the light-transmitting area when the brightness of the external environment exceeds the threshold brightness, thereby reducing the brightness of the light-transmitting area and improving the contrast between the display area and the non-display area.
  • the present application can avoid the decrease in contrast of the display panel in a high-brightness environment, and improve the display effect of the display panel in a high-brightness environment.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

本申请提供一种显示面板和电子设备。所述显示面板包括：至少一个显示区，所述显示区包括多个像素点；至少一个透光区，所述透光区与所述显示区相邻设置，所述透光区包括层叠设置的透光薄膜；其中，所述透光区还包括位于任意两层相邻的所述透光薄膜之间的透光率调节层。

Description

显示面板和电子设备 技术领域
本申请涉及电子显示领域，尤其涉及一种显示面板和电子设备。
 背景技术
透明显示屏能够在兼容透光和显示，即能够在显示画面的同时不遮挡显示屏后面的物品，因此在商业展示方面具有广泛的应用前景。
 技术问题
在高亮度的光线条件下，显示屏的背景亮度也随之增大，导致显示区域的光线和透光区域的光线对比度很低，导致显示效果较差。特别是在显示区域显示低灰阶较暗的画面时，对比度下降会导致显示屏上的图案无法被用户分辨，影响显示效果。
因此，有必要对现有技术进行优化。
 技术解决方案
本申请提供一种显示面板和电子设备，以提高透明显示屏在高亮度环境中时显示区和非显示区的对比度。
为解决上述问题，本申请提供了一种显示面板，所述显示面板包括：
至少一个显示区，所述显示区包括多个像素点；
至少一个透光区，所述透光区与所述显示区相邻设置，所述透光区包括层叠设置的透光薄膜；其中，
所述透光区还包括位于任意两层相邻的所述透光薄膜之间的透光率调节层。
根据本申请的其中一个方面，所述透光率调节层包括：
电致变色材料，所述电致变色材料的透光率与所述电致变色材料两端的电压相关；以及
第一调节电极和第二调节电极，所述第一调节电极和第二调节电极位于所述电致变色材料的两个相对的表面上，用于调节所述电致变色材料两端的电压。
根据本申请的其中一个方面，所述电致变色材料包括有机电致变色材料和无机电致变色材料；其中，
所述有机电致变色材料包括三氧化钨、氧化钼和氧化铱中的一种或多种的组合；
所述无机电致变色材料包括聚噻吩类及其衍生物、紫罗精类、四硫富瓦烯和金属酞菁类化合物中的一种或多种的组合。
根据本申请的其中一个方面，所述显示面板还包括亮度检测单元，所述亮度检测单元用于检测所述显示面板所处的环境的亮度；以及
当检测到环境亮度高于阈值亮度时，发出用于降低所述透光率调节层的亮度的电信号。
根据本申请的其中一个方面，所述阈值亮度大于或等于所述显示面板当前的显示亮度的60%。
根据本申请的其中一个方面，所述显示面板包括多个显示区和多个透光区，所述显示区和所述透光区间隔设置。
根据本申请的其中一个方面，所述显示区包括：
基板；
薄膜晶体管层，所述薄膜晶体管层位于所述基板上；
发光层，所述发光层位于所述薄膜晶体管层上；
彩膜层，所述彩膜层位于所述发光层上；其中，
所述薄膜晶体管层包括多层层叠设置的透明绝缘层，所述透光区的透光薄膜包括所述多层透明绝缘层向薄膜晶体管层外侧的延伸部分。
根据本申请的其中一个方面，所述透光率调节层位于任意两层透明绝缘层向薄膜晶体管层外侧的延伸部分之间。
根据本申请的其中一个方面，所述发光层包括由透明绝缘材料构成的像素定义层，所述透光率调节层位于所述像素定义层中。
根据本申请的其中一个方面，所述透光率调节层位于所述发光层上方，与所述彩膜层间隔设置。
相应的，本申请还提供了一种电子设备，所述电子设备包括显示面板，所述显示面板包括：
至少一个显示区，所述显示区包括多个像素点；
至少一个透光区，所述透光区与所述显示区相邻设置，所述透光区包括层叠设置的透光薄膜；其中，
所述透光区还包括位于任意两层相邻的所述透光薄膜之间的透光率调节层。
根据本申请的其中一个方面，所述电子设备包括透明展示柜。
根据本申请的其中一个方面，所述透光率调节层包括：
电致变色材料，所述电致变色材料的透光率与所述电致变色材料两端的电压相关；以及
第一调节电极和第二调节电极，所述第一调节电极和第二调节电极位于所述电致变色材料的两个相对的表面上，用于调节所述电致变色材料两端的电压。
根据本申请的其中一个方面，所述电致变色材料包括有机电致变色材料和无机电致变色材料；其中，
所述有机电致变色材料包括三氧化钨、氧化钼和氧化铱中的一种或多种的组合；
所述无机电致变色材料包括聚噻吩类及其衍生物、紫罗精类、四硫富瓦烯和金属酞菁类化合物中的一种或多种的组合。
根据本申请的其中一个方面，所述显示面板还包括亮度检测单元，所述亮度检测单元用于检测所述显示面板所处的环境的亮度；以及
当检测到环境亮度高于阈值亮度时，发出用于降低所述透光率调节层的亮度的电信号。
根据本申请的其中一个方面，所述阈值亮度大于或等于所述显示面板当前的显示亮度的60%。
根据本申请的其中一个方面，所述显示面板包括多个显示区和多个透光区，所述显示区和所述透光区间隔设置；其中，述显示区包括：
基板；
薄膜晶体管层，所述薄膜晶体管层位于所述基板上；
发光层，所述发光层位于所述薄膜晶体管层上；
彩膜层，所述彩膜层位于所述发光层上；其中，
所述薄膜晶体管层包括多层层叠设置的透明绝缘层，所述透光区的透光薄膜包括所述多层透明绝缘层向薄膜晶体管层外侧的延伸部分。
根据本申请的其中一个方面，所述透光率调节层位于任意两层透明绝缘层向薄膜晶体管层外侧的延伸部分之间。
根据本申请的其中一个方面，所述发光层包括由透明绝缘材料构成的像素定义层，所述透光率调节层位于所述像素定义层中。
根据本申请的其中一个方面，所述透光率调节层位于所述发光层上方，与所述彩膜层间隔设置。
 有益效果
本申请在透明显示面板的透光区设置了透光率调节层。所述透光率调节层的亮度可在外界环境的亮度超过阈值亮度时降低透光区的透光率，从而降低透光区的亮度，提高显示区和非显示区的对比度。本申请能够避免显示面板在高亮度环境中对比度下降，提高了显示面板在高亮度环境中的显示效果。
 附图说明
图1为本申请的一个具体实施例中的显示面板的结构示意图；
图2为图1中的透光率调节层的放大示意图；
图3为本申请的第二个具体实施例中的显示面板的结构示意图；
图4为本申请的第三个具体实施例中的显示面板的结构示意图。
 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，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。
下面结合附图对本申请进行详细说明。
本申请提供了一种显示面板，以提高透明显示屏在高亮度环境中时显示区和非显示区的对比度。
参见图1，图1为本申请的一个具体实施例中的显示面板的结构示意图，所述显示面板包括：至少一个显示区A和至少一个透光区B。本实施例中，所述显示面板包括多个显示区A和多个透光区B，所述显示区A和所述透光区B间隔设置。所述显示区A包括多个像素点，所述透光区B与所述显示区A相邻设置，所述透光区B包括层叠设置的透光薄膜。图1中示例性的示出了显示区A中的一个像素点的结构，在实际中，显示区A可以包括多个相邻设置的像素点，图1仅用于解释本申请，不能理解为对本申请的限制。
参见图1，所述显示区A包括：
基板10；
薄膜晶体管层20，所述薄膜晶体管层20位于所述基板10上；
发光层30，所述发光层30位于所述薄膜晶体管层20上；
彩膜层50，所述彩膜层50位于所述发光层上；其中，
所述薄膜晶体管层20包括多层层叠设置的透明绝缘层，所述透光区B的透光薄膜包括所述多层透明绝缘层向薄膜晶体管层外侧的延伸部分。
在本实施例中，所述薄膜晶体管层20包括：遮光金属层202、缓冲层201、有源区203、栅极叠层205、层间介质层204、源漏金属层206、第一平坦化层207和第二平坦化层208。其中，所述缓冲层201、层间介质层204、第一平坦化层207和第二平坦化层208均为透明绝缘层。
所述遮光金属层202位于所述基板10上。所述缓冲层201覆盖所述遮光金属层。所述有源区203位于所述缓冲层201上，所述有源区203包括沟道区和位于沟道区两侧的源区和漏区。所述栅极叠层205包括栅极介质层和栅极金属层，所述栅极叠层205覆盖所述沟道区。所述层间介质层204覆盖所述有源区203和栅极叠层205，所述层间介质层204具有暴露出所述源区和漏区的通孔。所述源漏金属层206位于所述层间介质层204上方，通过所述通孔与所述源区和漏区电连接。所述第一平坦化层207和第二平坦化层208位于所述层间介质层204上，并具有暴露出所述源漏金属层206的通孔。
在本实施例中，所述发光层30包括：像素定义层301、阳极302、发光材料层303和阴极304。
所述阳极302位于所述第二平坦化层208上方，并通过所述通孔与所述薄膜晶体管层20的源漏金属层206电连接。所述像素定义层位于所述第二平坦化层208上方，并具有暴露出所述阳极302的开口。所述发光材料层303位于所述开口中，并覆盖所述阳极302。所述阴极304覆盖所述发光材料层303。
在申请中的所述显示面板还包括覆盖所述发光层30的封装层40。在本实施例中，所述封装层40位薄膜封装结构。
所述彩膜层50包括彩色滤光片501和用于隔离所述彩色滤光片501的黑色遮光块502。所述彩色滤光片501和所述黑色遮光块502的高度相同。或者，所述黑色遮光块502的高度大于所述彩色滤光片501的厚度。
在申请中的所述显示面板还包括覆盖所述彩膜层50的盖板60。所述盖板优选的为玻璃盖板。本实施例中，所述盖板60还集成有触控单元。
本申请中，所述透光区B包括层叠设置的透光薄膜。本实施例中，参见图1，透光区B中的所述透光薄膜由显示区A中的透明绝缘层延伸构成。具体包括缓冲层201、层间介质层204、第一平坦化层207和第二平坦化层208。
本申请中，所述透光区B还包括位于任意两层相邻的所述透光薄膜之间的透光率调节层72。
参见图2，图2为图1中的透光率调节层的放大示意图，所述透光率调节层72包括电致变色材料720和调节电极722。所述电致变色材料720的透光率与所述电致变色材料720两端的电压相关。所述调节电极722包括第一调节电极和第二调节电极，所述第一调节电极和第二调节电极位于所述电致变色材料720的两个相对的表面上，用于调节所述电致变色材料720两端的电压。所述第一调节电极和第二调节电极为透明电极。
所述电致变色材料包括有机电致变色材料和无机电致变色材料。所述有机电致变色材料包括三氧化钨、氧化钼和氧化铱中的一种或多种的组合。所述无机电致变色材料包括聚噻吩类及其衍生物、紫罗精类、四硫富瓦烯和金属酞菁类化合物中的一种或多种的组合。上述材料均为颜色双向可逆的电致发光材料。当不加电压时，所述电致变色材料为透明态。当导致变色的电压消除之后，所述电致变色材料再次恢复透明状态。
本实施例中，所述显示面板还包括亮度检测单元，所述亮度检测单元用于检测所述显示面板所处的环境的亮度。当检测到环境亮度高于阈值亮度时，发出用于降低所述透光率调节层72的亮度的电信号。
当接收到亮度检测单元发出的用于降低亮度的电信号之后，所述透光率调节层72的第一调节电极和第二调节电极两端被施加稳定的直流电压，所述直流电压为能够使所述电致变色材料720由透明状态变为非透明状态的电压。
其中，所述阈值亮度大于或等于所述显示面板当前的显示亮度的60%。当然，根据不同的显示需求，可以对所述阈值亮度进行调节，例如为了获得更好的显示效果，可以将所述阈值亮度设置为50%或更低，以进一步增强显示区和非显示区的亮度差。
本申请中，所述透光率调节层72位于任意两层透明绝缘层向薄膜晶体管层外侧的延伸部分之间。所述透光率调节层的数目也可以根据需要进行设置，透光率调节层的数目越多，调节的范围越大，相应的显示效果也越好。
参见图3，在本申请的第二个实施例中，所述显示面板包括透光率调节层72和辅助调光层74。透光率调节层72位于所述发光层上方，与所述彩膜层间隔设置。辅助调光层74则位于缓冲层201中。
参见图4，在本申请的第三个实施例中，所述显示面板包括第二透光率调节层76和辅助调光层74。所述第二透光率调节层76位于所述像素定义层中。所述辅助调光层74则位于缓冲层201中。
本申请的实施例只是象征性的列举了所述透光率调节层可能设置的位置和数目。在实际中，所述透光率调节层的数目和位置都可以根据需要设置。上述实施例仅用于对本申请进行说明，不能理解为对本申请的限制。
相应的，本申请还提供了一种电子设备，所述电子设备包括如前所述的显示面板。所述电子设备可以是透明展示柜。
本申请在透明显示面板的透光区设置了透光率调节层2。所述透光率调节层的亮度可在外界环境的亮度超过阈值亮度时降低透光区的透光率，从而降低透光区的亮度，提高显示区和非显示区的对比度。本申请能够避免显示面板在高亮度环境中对比度下降，提高了显示面板在高亮度环境中的显示效果。
综上所述，虽然本申请已以优选实施例揭露如上，但上述优选实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种显示面板，其中，所述显示面板包括：
    至少一个显示区，所述显示区包括多个像素点；
    至少一个透光区，所述透光区与所述显示区相邻设置，所述透光区包括层叠设置的透光薄膜；其中，
    所述透光区还包括位于任意两层相邻的所述透光薄膜之间的透光率调节层。
  2. 根据权利要求1所述的显示面板，其中，所述透光率调节层包括：
    电致变色材料，所述电致变色材料的透光率与所述电致变色材料两端的电压相关；以及
    第一调节电极和第二调节电极，所述第一调节电极和第二调节电极位于所述电致变色材料的两个相对的表面上，用于调节所述电致变色材料两端的电压。
  3. 根据权利要求2所述的显示面板，其中，所述电致变色材料包括有机电致变色材料和无机电致变色材料；其中，
    所述有机电致变色材料包括三氧化钨、氧化钼和氧化铱中的一种或多种的组合；
    所述无机电致变色材料包括聚噻吩类及其衍生物、紫罗精类、四硫富瓦烯和金属酞菁类化合物中的一种或多种的组合。
  4. 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亮度检测单元，所述亮度检测单元用于检测所述显示面板所处的环境的亮度；以及
    当检测到环境亮度高于阈值亮度时，发出用于降低所述透光率调节层的亮度的电信号。
  5. 根据权利要求4所述的显示面板，其中，所述阈值亮度大于或等于所述显示面板当前的显示亮度的60%。
  6. 根据权利要求1所述的显示面板，其中，所述显示面板包括多个显示区和多个透光区，所述显示区和所述透光区间隔设置。
  7. 根据权利要求6所述的显示面板，其中，所述显示区包括：
    基板；
    薄膜晶体管层，所述薄膜晶体管层位于所述基板上；
    发光层，所述发光层位于所述薄膜晶体管层上；
    彩膜层，所述彩膜层位于所述发光层上；其中，
    所述薄膜晶体管层包括多层层叠设置的透明绝缘层，所述透光区的透光薄膜包括所述多层透明绝缘层向薄膜晶体管层外侧的延伸部分。
  8. 根据权利要求7所述的显示面板，其中，所述透光率调节层位于任意两层透明绝缘层向薄膜晶体管层外侧的延伸部分之间。
  9. 根据权利要求7所述的显示面板，其中，所述发光层包括由透明绝缘材料构成的像素定义层，所述透光率调节层位于所述像素定义层中。
  10. 根据权利要求7所述的显示面板，其中，所述透光率调节层位于所述发光层上方，与所述彩膜层间隔设置。
  11. 一种电子设备，其中，所述电子设备包括显示面板，所述显示面板包括：
    至少一个显示区，所述显示区包括多个像素点；
    至少一个透光区，所述透光区与所述显示区相邻设置，所述透光区包括层叠设置的透光薄膜；其中，
    所述透光区还包括位于任意两层相邻的所述透光薄膜之间的透光率调节层。
  12. 根据权利要求11所述的电子设备，其中，所述电子设备包括透明展示柜。
  13. 根据权利要求11所述的电子设备，其中，所述透光率调节层包括：
    电致变色材料，所述电致变色材料的透光率与所述电致变色材料两端的电压相关；以及
    第一调节电极和第二调节电极，所述第一调节电极和第二调节电极位于所述电致变色材料的两个相对的表面上，用于调节所述电致变色材料两端的电压。
  14. 根据权利要求13所述的电子设备，其中，所述电致变色材料包括有机电致变色材料和无机电致变色材料；其中，
    所述有机电致变色材料包括三氧化钨、氧化钼和氧化铱中的一种或多种的组合；
    所述无机电致变色材料包括聚噻吩类及其衍生物、紫罗精类、四硫富瓦烯和金属酞菁类化合物中的一种或多种的组合。
  15. 根据权利要求12所述的电子设备，其中，所述显示面板还包括亮度检测单元，所述亮度检测单元用于检测所述显示面板所处的环境的亮度；以及
    当检测到环境亮度高于阈值亮度时，发出用于降低所述透光率调节层的亮度的电信号。
  16. 根据权利要求15所述的电子设备，其中，所述阈值亮度大于或等于所述显示面板当前的显示亮度的60%。
  17. 根据权利要求12所述的电子设备，其中，所述显示面板包括多个显示区和多个透光区，所述显示区和所述透光区间隔设置；其中，
    所述显示区包括：
    基板；
    薄膜晶体管层，所述薄膜晶体管层位于所述基板上；
    发光层，所述发光层位于所述薄膜晶体管层上；
    彩膜层，所述彩膜层位于所述发光层上；其中，
    所述薄膜晶体管层包括多层层叠设置的透明绝缘层，所述透光区的透光薄膜包括所述多层透明绝缘层向薄膜晶体管层外侧的延伸部分。
  18. 根据权利要求17所述的电子设备，其中，所述透光率调节层位于任意两层透明绝缘层向薄膜晶体管层外侧的延伸部分之间。
  19. 根据权利要求17所述的电子设备，其中，所述发光层包括由透明绝缘材料构成的像素定义层，所述透光率调节层位于所述像素定义层中。
  20. 根据权利要求17所述的电子设备，其中，所述透光率调节层位于所述发光层上方，与所述彩膜层间隔设置。
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