WO2022222912A1 - 显示面板及电子设备 - Google Patents

显示面板及电子设备 Download PDF

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Publication number
WO2022222912A1
WO2022222912A1 PCT/CN2022/087594 CN2022087594W WO2022222912A1 WO 2022222912 A1 WO2022222912 A1 WO 2022222912A1 CN 2022087594 W CN2022087594 W CN 2022087594W WO 2022222912 A1 WO2022222912 A1 WO 2022222912A1
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WIPO (PCT)
Prior art keywords
layer
pixel
display panel
switch
sub
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PCT/CN2022/087594
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English (en)
French (fr)
Inventor
谢华飞
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维沃移动通信（杭州）有限公司
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Publication of WO2022222912A1 publication Critical patent/WO2022222912A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on an electrochromic effect
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • 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]

Definitions

  • the present application belongs to the field of display technology, and specifically relates to a display panel and an electronic device.
  • Mini/Micro LED miniature LED
  • LCD displays can achieve better contrast ratio, and ultra-small LED die can also achieve more uniformity than traditional LED backlights. Therefore, panel manufacturers are actively introducing Mini/Micro LED backlight technology into LCD displays.
  • Mini/Micro LED backlight technology requires changing the structure and brightness of the LCD display, and the production cost, power consumption and heat dissipation of Mini/Micro LED backlight technology are much higher. Yield is not high.
  • the purpose of the embodiments of the present application is to provide a display panel, which can solve the problem of how to provide a high-contrast display that does not change the structure and brightness of the display, has low cost, power consumption, and heat dissipation, and can realize high-contrast display without massive transfer. .
  • an embodiment of the present application provides a display panel, comprising: a driving substrate, a pixel layer, an encapsulation layer, and a filter layer, wherein:
  • the pixel layer includes a plurality of sub-pixels arranged in an array
  • the filter layer is arranged on the side of the encapsulation layer away from the pixel layer, or the filter layer is arranged at the side of the driving substrate away from the pixel layer, and the filter layer includes a layered first layer. a polarizer and electrochromic device layer;
  • the electrochromic device layer includes a plurality of electrochromic devices corresponding to the positions of the plurality of sub-pixels one-to-one;
  • the driving substrate, the pixel layer, and the encapsulation layer are stacked in sequence, and the driving substrate includes a plurality of driving circuits that are connected to a plurality of the sub-pixels in a one-to-one correspondence, and each of the driving circuits is connected to it.
  • the sub-pixels and the electrochromic devices corresponding to the sub-pixels are powered synchronously.
  • an embodiment of the present application provides an electronic device, where the electronic device includes the display panel according to the first aspect.
  • the contrast of the display panel is increased while the pixel-level control of the display panel is realized, that is, a high-contrast display panel is realized;
  • an electrochromic device layer can be added, which does not need to change the structure and brightness of the existing display panel, so the cost is low and there is no mass transfer;
  • the electrochromic device is used with the corresponding sub-pixels The same driving circuit is driven synchronously, which reduces the power consumption and heat dissipation of the display panel.
  • the electrochromic device layer is light and thin and can have flexible properties, and is suitable for display panels of various forms and sizes.
  • FIGS. 1-10 are schematic structural diagrams of a display panel according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of an electrochromic device provided by an embodiment of the present application.
  • FIGS. 12-15 are schematic structural diagrams of a driving circuit provided by an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between “first”, “second”, etc.
  • the objects are usually of one type, and the number of objects is not limited.
  • the first object may be one or more than one.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • the display panel includes a driving substrate 101 , a pixel layer 102 , an encapsulation layer 103 , and a filter layer 104 . in:
  • the pixel layer 102 includes a plurality of sub-pixels 1021 arranged in an array.
  • the filter layer 104 is arranged on the side of the encapsulation layer 103 away from the pixel layer 102, or the filter layer 104 is arranged on the side of the driving substrate 101 away from the pixel layer 102, and the filter layer 104 includes a stacked first polarizer 1041 and an electro- Color changing device layer 1042 .
  • the electrochromic device layer 1042 includes a plurality of electrochromic devices 10421 corresponding to the positions of the plurality of sub-pixels 1021 one-to-one.
  • the driving substrate 101 , the pixel layer 102 , and the encapsulation layer 103 are stacked in sequence.
  • the driving substrate 101 includes a plurality of driving circuits 1011 that are connected to a plurality of sub-pixels 1021 in a one-to-one correspondence.
  • the electrochromic devices 10421 of the sub-pixels 1021 are powered synchronously.
  • the display panel may be an LCD (Liquid Crystal Display; Liquid Crystal Display) display panel, an LED (Light Emitting Diode; Light Emitting Diode) display panel or an OLED (Organic Light Emitting Displa; Organic Light Emitting Diode) display panel.
  • LCD Liquid Crystal Display
  • LED Light Emitting Diode
  • OLED Organic Light Emitting Displa
  • the pixel layer 102 is used for realizing color display, and includes a plurality of sub-pixels 1021 .
  • the sub-pixel 1021 may specifically be an R (RED, red) sub-pixel, a G (Green, green) sub-image, or a B (Blue, blue) sub-pixel.
  • the R sub-pixel specifically includes an R-color resistor and a corresponding liquid crystal.
  • the G sub-pixel specifically includes a G-color resist and a corresponding liquid crystal.
  • the B sub-pixel specifically includes a B-color resist and a corresponding liquid crystal.
  • the R sub-pixels specifically include R-LEDs.
  • the G sub-pixels specifically include G-LEDs.
  • the B sub-pixel specifically includes a B-LED.
  • the R sub-pixel specifically includes an R-OLED.
  • the G sub-pixel specifically includes a G-OLED.
  • the B sub-pixel specifically includes a B-OLED.
  • the encapsulation layer 103 is used to encapsulate the sub-pixels 1021 in the pixel layer 102 .
  • the encapsulation layer 103 is used to encapsulate the LED device.
  • the encapsulation layer 103 is used to encapsulate the OLED device.
  • the encapsulation layer 103 is used to encapsulate the liquid crystal and the color resistance.
  • the positions of the first polarizer 1041 and the electrochromic device layer 1042 in the filter layer 104 are not limited. That is, the first polarizer 1041 may be disposed on one side of the electrochromic device layer 1042 , or may be disposed on the other side of the electrochromic device layer 1042 .
  • the filter layer 104 is disposed on the side of the encapsulation layer 103 away from the pixel layer 102, and the first polarizer 1041 is used to reduce reflection and avoid viewing to the metal electrodes in the pixel layer 102 .
  • the filter layer 104 may be disposed on the side of the encapsulation layer 103 away from the pixel layer 102 , and may also be disposed on the side of the driving substrate 101 away from the pixel layer 102 . specific:
  • the first polarizer 1041 is used to analyze polarized light, so as to generate a light-dark contrast, so as to display a picture.
  • the first polarizer 1041 is used to convert the received light into polarized light.
  • the electrochromic device 10421 is in a state of high light transmittance when it is not powered on, and the light transmittance can be changed when powered on.
  • the electrochromic device 10421 can achieve a change from a transparent state to black (or other color) when a positive voltage is applied to a certain degree, and the electrochromic device 10421 can be changed when a negative voltage is applied , which can change from black (or other color) to transparent state.
  • the electrochromic device layer 1042 includes a plurality of electrochromic devices 10421, the electrochromic devices 10421 correspond to the sub-pixels 1021 one-to-one, and the projection position of each electrochromic device 10421 on the display panel is the same as The projection positions of the corresponding sub-pixels 1021 on the display panel may be coincident. Therefore, by controlling the electrochromic device 10421, it is possible to control the transmittance of the corresponding sub-pixel 1021, and thus the control of the electrochromic device 10421 is pixel-level control.
  • the drive substrate 101 provides carrier support and a corresponding drive circuit 1011 for each sub-pixel 1021 and the corresponding electrochromic device 10421 .
  • the driving circuit 1011 is connected to the corresponding sub-pixels 1021 and the corresponding electrochromic devices 1042 in a one-to-one correspondence. That is to say, one driving circuit 1011 can realize the common driving of the corresponding sub-pixel 1021 and the corresponding electrochromic device 10421 .
  • the driving circuit 1011 controls the sub-pixel 1021 to supply power to the corresponding electrochromic device synchronously, so that the driving circuit 1011 controls the sub-pixel 1021 to switch synchronously with the corresponding electrochromic device.
  • the driving circuit 1011 can control the light transmittance of the sub-pixels 1021 to be lower, thereby making the darkness of the corresponding sub-pixels 1021 darker, thereby increasing the contrast ratio of the display panel while realizing the pixel-level control of the display panel. .
  • the driving circuit 1011 may be arranged directly below the corresponding sub-pixel 1021, and of course, the driving circuit 1011 may also be arranged at other positions.
  • a display panel includes: a driving substrate, a pixel layer, an encapsulation layer, and a filter layer, where the pixel layer includes a plurality of sub-pixels arranged in an array; the filter layer is disposed on the encapsulation layer away from the pixels One side of the layer, or the filter layer is arranged on the side of the driving substrate away from the pixel layer, and the filter layer includes a first polarizer and an electrochromic device layer that are stacked and arranged; the electrochromic device layer includes a plurality of sub-pixel positions one by one.
  • a plurality of corresponding electrochromic devices; a driving substrate, a pixel layer, and an encapsulation layer are sequentially stacked and arranged, and the driving substrate includes a plurality of driving circuits connected with a plurality of sub-pixels in a one-to-one correspondence, and each driving circuit is a sub-pixel connected to it and a corresponding sub-pixel.
  • the electrochromic devices of the sub-pixels are powered synchronously.
  • the contrast ratio of the display panel is increased, that is, a display panel with high contrast ratio is realized;
  • the electrochromic device layer is enough, which does not need to change the structure and brightness of the existing display panel, so the cost is low and there is no mass transfer;
  • the electrochromic device and the corresponding sub-pixels are driven synchronously by the same driving circuit, which The power consumption and heat dissipation of the display panel are reduced;
  • the electrochromic device layer is thin and light and can have flexible properties, and is suitable for display panels of various forms and sizes.
  • the filter layer 104 is disposed on the side of the driving substrate 101 away from the pixel layer 102 , and the display panel further includes a first backlight layer 105 and a second polarizer 106 , wherein:
  • the first backlight layer 105 , the filter layer 104 , the driving substrate 101 , the pixel layer 102 , the encapsulation layer 103 and the second polarizer 106 are stacked in sequence.
  • the display panel is an LCD display panel.
  • the first backlight layer 105 is used to provide a light source.
  • the first polarizer 1041 is used to convert the light beam generated by the first backlight layer 105 into polarized light.
  • the second polarizer 106 is used to analyze the polarized light to generate a light-dark contrast so as to display a picture.
  • the filter layer 104 is disposed on the side of the encapsulation layer 103 away from the pixel layer 102, and the display panel further includes a second backlight layer 107 and a third polarizer 108, wherein:
  • the second backlight layer 107 , the third polarizer 108 , the driving substrate 101 , the pixel layer 102 , the encapsulation layer 103 and the filter layer 104 are stacked in sequence.
  • the display panel is an LCD display panel.
  • the second backlight layer 107 is used to provide a light source.
  • the third polarizer 108 is used to convert the light beam generated by the second backlight layer 107 into polarized light.
  • the first polarizer 1041 is used to analyze polarized light to generate a light-dark contrast so as to display a picture.
  • the electrochromic device 10421 includes: a first conductive glass layer 10421-1, an electricity storage layer 10421-2, a conductive layer 10421-3, and an electrochromic layer 10421- 4 and the second conductive glass layer 10421-5, wherein:
  • the first conductive glass layer 10421-1, the electricity storage layer 10421-2, the conductive layer 10421-3, the electrochromic layer 10421-4 and the second conductive glass layer 10421-5 are stacked in sequence.
  • the first conductive glass layer 10421-1 includes power pins 10421-11, and the second conductive glass layer 10421-51 includes ground pins.
  • both the first conductive glass layer 10421-1 and the second conductive glass layer 10421-5 may be ITO (Indium Tin Oxide) glass for receiving voltage signals.
  • the electric storage layer 10421-2 is used to store electric charges according to the voltage signal.
  • the conductive layer 10421-3 is used to transfer the charges stored in the storage layer 10421-2 to the electrochromic layer 10421-4.
  • the electrochromic layer 10421-4 realizes a change in light transmittance according to received charges.
  • an electrochromic device 10421 with a simple structure is provided.
  • the driving substrate 101 includes a first data line 1012 , a first scanning line 1013 and a first power supply line 1014
  • the driving circuit 1011 includes a first switch 10111 , a second switch 10112 , and a first power supply line 1011 .
  • a capacitor 10113 where:
  • the first switch 10111 is connected between the first data line 1012 and the control terminal of the second switch 10112 , and the control terminal of the first switch 10111 is connected to the first scan line 1013 .
  • the second switch 10112 is connected between the first power line 1014 and the corresponding sub-pixel 1021 .
  • the electrochromic device 10421 corresponding to the driving circuit 1011 is connected in parallel with the corresponding sub-pixel 1021 .
  • the first capacitor 10113 is connected between the control terminal of the second switch 10112 and the ground terminal.
  • the first switch 10111 and the second switch 10112 may be TFT switch transistors.
  • the driving circuit is a driving circuit of an LED display panel or an OLED display panel.
  • the second switch 10112 is connected between the first power line 1014 and the corresponding sub-pixel 1021 specifically: the second switch 10112 is connected between the first power line 1014 and the anode of the corresponding LED or OLED.
  • the charging and discharging of the first capacitor 10113 is realized through the control of the first switch 10111 by the first scan line 1013 and the first data line 1012 .
  • the electrochromic device 10421 and the corresponding sub-pixels 1021 are synchronously powered.
  • the electrochromic device 10421 and the corresponding sub-pixel 1021 are connected in parallel to realize the synchronous power supply of the electrochromic device 10421 and the corresponding sub-pixel 1021 .
  • a driving circuit 1011 with a simple structure and easy control is provided.
  • the driving substrate 101 includes a second data line 1015 , a second scanning line 1016 and a second power supply line 1017
  • the driving circuit 1011 includes: a third switch 10114 , a fourth switch 10115 , a first Two capacitors 10116 and a first control unit 10117, wherein:
  • the third switch 10114 is connected between the second data line 1015 and the control terminal of the fourth switch 10115 , and the control terminal of the third switch 10114 is connected to the second scan line 10116 .
  • the fourth switch 10115 is connected between the second power line 1017 and the corresponding sub-pixel 1021 .
  • the first end of the first control unit 10117 is connected to the second scan line 1016 , the second end of the first control unit 1017 is connected to the second data line 1015 , and the third end of the first control unit 1017 is connected to the second power line 1017 , the fourth terminal of the first control unit 1017 is connected to the power supply pin of the electrochromic device 10421 corresponding to the driving circuit 1011 .
  • the second capacitor 1016 is connected between the control terminal of the fourth switch 10115 and the ground terminal.
  • the driving circuit is a driving circuit of an LED display panel or an OLED display panel.
  • the connection between the fourth switch 10115 and the second power line 1017 and the corresponding sub-pixel 1021 is specifically: the fourth switch 10115 is connected between the second power line 1017 and the anode of the corresponding LED or OLED.
  • the charging and discharging of the second capacitor 10116 is realized through the control of the third switch 10114 by the second scan line 1016 and the second data line 1015 .
  • the switch control of the corresponding sub-pixel 1021 is realized.
  • the first control unit 1017 realizes synchronous power supply to the electrochromic device 10421 and the sub-pixels 1021 by reading the scan lines and the data lines.
  • a driving circuit 1011 with a simple structure and easy control is provided.
  • the driving substrate 101 includes a third data line 1018 and a first gate line 1019, and the driving circuit 101 includes: a fifth switch 10118, wherein:
  • the fifth switch 10118 is connected between the third data line 1018 and the first end of the corresponding sub-pixel 1021 , and the control end of the fifth switch 10118 is connected to the first gate line 1019 .
  • the second end of the corresponding sub-pixel 1021 is grounded.
  • the first end of the corresponding sub-pixel 1021 is connected to the power supply pin of the corresponding electrochromic device 10421 .
  • the display panel is an LCD display panel.
  • the fifth switch 10118 is connected between the third data line 1018 and the first end of the corresponding sub-pixel 1021. Specifically, the fifth switch 10118 is connected between the third data line 1018 and the liquid crystal corresponding to the corresponding sub-pixel 1021. on one side of the glass substrate close to the driving substrate 101 . The second end of the corresponding sub-pixel 1021 is on the glass substrate on the side away from the driving substrate 101 of the liquid crystal corresponding to the sub-pixel 1021 .
  • liquid crystal corresponding to the sub-pixel 1021 is usually packaged by two glass substrates.
  • control of the fifth switch 10118 by the third data line 1018 and the first gate line 1019 realizes the synchronous power supply to the corresponding liquid crystal of the corresponding sub-pixel 1021 and the corresponding electrochromic device 10421 .
  • a driving circuit 101 with a simple structure and easy control is provided.
  • the driving substrate 101 includes a fourth data line 10110 and a second gate line 10110-1
  • the driving circuit 1011 includes: a sixth switch 10119 and a second control unit 10119-1, wherein:
  • the sixth switch 10119 is connected between the fourth data line 10110 and the first end of the corresponding sub-pixel 1021, and the control end of the sixth switch 10119 is connected to the second gate line 10110-1.
  • the second end of the corresponding sub-pixel 1021 is grounded.
  • the first end of the second control unit 10119-1 is connected to the gate line, the second end of the second control unit 10119-1 is connected to the fourth data line 10110, and the third end of the second control unit 10119-1 is connected to the corresponding electrical
  • the power supply pin of the photochromic device 10421 is connected.
  • the display panel is an LCD display panel.
  • the sixth switch 10119 is connected between the fourth data line 10110 and the first end of the corresponding sub-pixel 1021. Specifically, the sixth switch 10119 is connected between the fourth data line 10110 and the liquid crystal corresponding to the corresponding sub-pixel 1021. on one side of the glass substrate close to the driving substrate 101 . The second end of the corresponding sub-pixel 1021 is on the glass substrate on the side away from the driving substrate 101 of the liquid crystal corresponding to the sub-pixel 1021 .
  • liquid crystal corresponding to the sub-pixel 1021 is usually packaged by two glass substrates.
  • control of the liquid crystal corresponding to the corresponding sub-pixel 1021 is realized through the control of the sixth switch 10119 by the fourth data line 10110 and the second gate line 10110-1.
  • the data lines are read by the second control unit 10119-1 to achieve synchronous power supply to the electrochromic device 10421 and the corresponding liquid crystals in the sub-pixels 1021.
  • a driving circuit 1011 with a simple structure and easy control is provided.
  • An embodiment of the present application further provides an electronic device, and the electronic device includes the display panel provided in any of the foregoing embodiments.
  • the electronic device may be a mobile phone, a television, a computer, or the like.

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Abstract

一种显示面板及电子设备，显示面板包括：驱动基板（101）、像素层（102）、封装层（103）、过滤层（104），其中：像素层（102）包括阵列排布的多个子像素（1021）；过滤层（104）设置在封装层（103）的背离像素层（102）的一侧，或者过滤层（104）设置在驱动基板（101）的背离像素层（102）的一侧，过滤层（104）包括层叠设置的第一偏光片（1041）和电致变色器件层（1042）；电致变色器件层（1042）包括与多个子像素（1021）位置一一对应的多个电致变色器件（10421）；驱动基板（101）、像素层（102）、封装层（103）依次层叠设置，驱动基板（101）包括与多个子像素（1021）一一对应连接的多个驱动电路（1011），每个驱动电路（1011）为与其相连的子像素（1021）以及对应子像素（1021）的电致变色器件（10421）同步供电。

Description

显示面板及电子设备
相关申请的交叉引用
本申请要求于2021年04月22日提交的申请号为2021104392825，发明名称为“显示面板及电子设备”的中国专利申请的优先权，其通过引用方式全部并入本申请。
技术领域
本申请属于显示技术领域，具体涉及一种显示面板和一种电子设备。
背景技术
目前，由于Mini/Micro LED(小微型LED)背光技术可以区域调光的特性，可使得LCD显示器能实现更好的对比度，以及超小的LED晶粒也能够做到比传统LED背光更均匀的光分布，因此面板厂商正在积极将Mini/Micro LED背光技术导入LCD显示器。
但是，将Mini/Micro LED背光技术导入LCD显示器中，需要改变LCD显示器的结构和亮度，且Mini/Micro LED背光技术所产生的生产成本、功耗以及散热皆高出许多，巨量转移技术的良率不高。
因此，如何提供一种不改变显示器的结构和亮度，及成本、功耗、散热均低，且无巨量转移的能实现高对比度显示器亟待被提出。
发明内容
本申请实施例的目的是提供一种显示面板，能够解决如何提供一种不改变显示器的结构和亮度，及成本、功耗、散热均低，且无巨量转移的能实现高对比度显示器的问题。
第一方面，本申请实施例提供了一种显示面板，包括：驱动基板、像 素层、封装层、过滤层，其中：
所述像素层包括阵列排布的多个子像素；
所述过滤层设置在所述封装层的背离所述像素层的一侧，或者所述过滤层设置在所述驱动基板的背离所述像素层的一侧，所述过滤层包括层叠设置的第一偏光片和电致变色器件层；
所述电致变色器件层包括与多个所述子像素位置一一对应的多个电致变色器件；
所述驱动基板、所述像素层、所述封装层依次层叠设置，所述驱动基板包括与多个所述子像素一一对应连接的多个驱动电路，每个所述驱动电路为与其相连的所述子像素以及对应所述子像素的电致变色器件同步供电。
第二方面，本申请实施例提供了一种电子设备，所述电子设备包括如第一方面所述的显示面板。
根据本申请实施例的显示面板，第一方面，在实现对显示面板像素级控制的同时，增加了显示面板的对比度，即实现了一种高对比度的显示面板；第二方面，仅需在现有的显示面板中增加电致变色器件层即可，这无需改变现有的显示面板的结构和亮度，因此成本低且无巨量转移；第三方面，电致变色器件与对应的子像素使用同一驱动电路同步驱动，这降低了显示面板的功耗和散热。第四方面，电致变色器件层轻薄且可具有柔性特性，适用于各种形式及各个尺寸的显示面板。
附图说明
图1-图10为本申请实施例提供的显示面板的结构示意图；
图11为本申请实施例提供的一种电致变色器件的结构示意图；
图12-图15为本申请实施例提供的驱动电路的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的显示面板及电子设备进行详细地说明。
本申请实施例提供了一种显示面板，如图1-4所示，该显示面板包括驱动基板101、像素层102、封装层103、过滤层104。其中：
像素层102包括阵列排布的多个子像素1021。
过滤层104设置在封装层103的背离像素层102的一侧，或者过滤层104设置在驱动基板101的背离像素层102的一侧，过滤层104包括层叠设置的第一偏光片1041和电致变色器件层1042。
电致变色器件层1042包括与多个子像素1021位置一一对应的多个电致变色器件10421。
驱动基板101、像素层102、封装层103依次层叠设置，驱动基板101包括与多个子像素1021一一对应连接的多个驱动电路1011，每个驱动电路1011为与其相连的子像素1021以及对应该子像素1021的电致变色器件10421同步供电。
在本实施例中，显示面板可以为LCD(Liquid Crystal Display；液晶显示器)显示面板、LED(Light Emitting Diode；发光二极管)显示面板 或OLED(Organic Light Emitting Displa；有机发光二极管)显示面板。
在本实施例中，像素层102用于实现彩色显示，包括多个子像素1021。其中，子像素1021具体可以为R(RED，红色)子像素、G(Green，绿色)子像或B(Blue，蓝色)子像素。
在本实施例中，如图7和图8所示。在显示面板为LCD显示面板的情况下，R子像素具体包括R-色阻以及对应的液晶。G子像素具体包括G-色阻以及对应的液晶。B子像素具体包括B-色阻以及对应的液晶。
在显示面板为LED显示面板的情况下，R子像素具体包括R-LED。G子像素具体包括G-LED。B子像素具体包括B-LED。
在显示面板为OLED显示面板的情况下，如图5和图6所示，R子像素具体包括R-OLED。G子像素具体包括G-OLED。B子像素具体包括B-OLED。
在本实施例中，封装层103用于对像素层102中的子像素1021进行封装。具体的，在显示面板为LED显示面板或者OLED显示面板的情况下，封装层103用于对LED器件进行封装。在显示面板为OLED显示面板的情况下，封装层103用于对OLED器件进行封装。在显示面板为LCD显示面板的情况下，封装层103用于对液晶以及色阻进行封装。
在本实施例中，对过滤层104中的第一偏光片1041和电致变色器件层1042的位置不作限定。即第一偏光片1041可设置在电致变色器件层1042的一侧，也可设置在电致变色器件层1042的另一侧。
在本实施例中，在显示面板为LED显示面板或OLED显示面板的情况下，过滤层104设置在封装层103的背离像素层102的一侧，第一偏光片1041用于降低反射，避免看到像素层102中的金属电极。
在显示面板为LCD显示面板的情况下，过滤层104可设置在封装层103的背离像素层102的一侧，还可设置在驱动基板101的背离像素层102的一侧。具体的：
在过滤层104设置在封装层103的背离像素层102的一侧的情况下， 第一偏光片1041用于解析偏振光，以产生明暗对比，从而显示画面。
在过滤层104设置在驱动基板101的背离像素层102的一侧的情况下，第一偏光片1041用于将接收到的光转换为偏振光。
在本实施例中，电致变色器件10421在不通电的情况下为高透光率的状态，且在通电的情况下，可实现透光率的变化。在一个示例中，电致变色器件10421在被施加一定程度的正电压的情况下，可实现从透明状态到黑色(或者其他颜色)的变化，电致变色器件10421在被施加负电压的情况下，可实现从黑色(或者其他颜色)到透明状态的变化。
在本实施例中，电致变色器件层1042包括多个电致变色器件10421，电致变色器件10421与子像素1021一一对应，且每一电致变色器件10421在显示面板上的投影位置与对应子像素1021在显示面板上的投影位置可以重合。因此，通过对电致变色器件10421的控制，可实现对对应子像素1021的透光率的控制，这样对电致变色器件10421的控制即为像素级的控制。
在本实施例中，驱动基板101提供载体支撑以及为每一子像素1021和对应电致变色器件10421提供对应的驱动电路1011。驱动电路1011与对应子像素1021以及对应电致变色器件1042一一对应连接。这也就是说，一个驱动电路1011可实现对对应子像素1021和对应电致变色器件10421的共同驱动。另外，驱动电路1011通过控制子像素1021与对应电致变色器件同步供电，这样可实现驱动电路1011通过控制子像素1021与对应电致变色器件同步开关。在此基础上，驱动电路1011可控制子像素1021的透光率更低，进而使得对应子像素1021的暗度更暗，从而在实现对显示面板像素级控制的同时，增加了显示面板的对比度。
需要说明的是，可将驱动电路1011设置在对应子像素1021的正下方，当然还可将驱动电路1011设置在其他位置。
在本实施例中，提供了一种显示面板，该显示面板包括：驱动基板、像素层、封装层、过滤层，像素层包括阵列排布的多个子像素；过滤层设 置在封装层的背离像素层的一侧，或者过滤层设置在驱动基板的背离像素层的一侧，过滤层包括层叠设置的第一偏光片和电致变色器件层；电致变色器件层包括与多个子像素位置一一对应的多个电致变色器件；驱动基板、像素层、封装层依次层叠设置，驱动基板包括与多个子像素一一对应连接的多个驱动电路，每个驱动电路为与其相连的子像素以及对应子像素的电致变色器件同步供电。
这样，第一方面，在实现对显示面板像素级控制的同时，增加了显示面板的对比度，即实现了一种高对比度的显示面板；第二方面，仅需在现有的显示面板中增加电致变色器件层即可，这无需改变现有的显示面板的结构和亮度，因此成本低且无巨量转移；第三方面，电致变色器件与对应的子像素使用同一驱动电路同步驱动，这降低了显示面板的功耗和散热；第四方面，电致变色器件层轻薄且可具有柔性特性，适用于各种形式及各个尺寸的显示面板。
在一个实施例中，如图7和图8所示，过滤层104设置在驱动基板101的背离像素层102的一侧，显示面板还包括第一背光层105和第二偏光片106，其中：
第一背光层105、过滤层104、驱动基板101、像素层102、封装层103以及第二偏光片106依次层叠设置。
在本实施例中，显示面板为LCD显示面板。第一背光层105用于提供光源。第一偏光片1041用于将第一背光层105产生的光束转换为偏振光。第二偏光片106第用于解析偏振光，以产生明暗对比，从而显示画面。
在一个实施例中，如图9和图10所示，过滤层104设置在封装层103的背离像素层102的一侧，显示面板还包括第二背光层107和第三偏光片108，其中：
第二背光层107、第三偏光片108、驱动基板101、像素层102、封装层103以及过滤层104依次层叠设置。
在本实施例中，显示面板为LCD显示面板。第二背光层107用于提供光源。第三偏光片108用于将第二背光层107产生的光束转换为偏振光。第一偏光片1041用于解析偏振光，以产生明暗对比，从而显示画面。
在本申请的一个实施例中，如图11所示，电致变色器件10421包括：第一导电玻璃层10421-1、储电层10421-2、传导层10421-3、电致变色层10421-4以及第二导电玻璃层10421-5，其中：
第一导电玻璃层10421-1、储电层10421-2、传导层10421-3、电致变色层10421-4以及第二导电玻璃层10421-5依次层叠设置。
第一导电玻璃层10421-1包括电源引脚10421-11，第二导电玻璃层10421-51包括接地引脚。
在本实施例中，第一导电玻璃层10421-1和第二导电玻璃层10421-5均可以为ITO(氧化铟锡)玻璃，用于接收电压信号。储电层10421-2用于根据电压信号存储电荷。传导层10421-3用于将储电层10421-2存储的电荷转移到电致变色层10421-4。电致变色层10421-4根据接收到的电荷实现透光率的变化。
在本申请实施例中，提供了一种结构简单的电致变色器件10421。
在本实施例中，如图12所示，驱动基板101包括第一数据线1012、第一扫描线1013和第一电源线1014，驱动电路1011包括：第一开关10111、第二开关10112以及第一电容10113，其中：
第一开关10111连接在第一数据线1012与第二开关10112的控制端之间，第一开关10111的控制端与第一扫描线1013连接。
第二开关10112连接在第一电源线1014与对应子像素1021之间。
与驱动电路1011对应的电致变色器件10421与对应子像素1021并联。
第一电容10113连接在第二开关10112的控制端与接地端之间。
在本申请的一个实施例中，第一开关10111和第二开关10112可以为TFT开关管。
在本实施例中，该驱动电路为LED显示面板或OLED显示面板的驱 动电路。在此基础上，第二开关10112连接第一电源线1014与对应子像素1021之间具体为：第二开关10112连接在第一电源线1014与对应LED或OLED的阳极之间。
在本实施例中，通过第一扫描线1013和第一数据线1012对第一开关10111的控制，实现对第一电容10113的充放电。通过第一电容10113以及第一电源线1014对第二开关10112的控制，实现对电致变色器件10421和对应子像素1021同步供电。
在本实施例中，电致变色器件10421与对应子像素1021并联可实现电致变色器件10421与对应子像素1021同步供电。
在本实施例中，提供了一种结构简单的，且易于控制的驱动电路1011。
在一个实施例中，如图13所示，驱动基板101包括第二数据线1015、第二扫描线1016和第二电源线1017，驱动电路1011包括：第三开关10114、第四开关10115、第二电容10116以及第一控制单元10117，其中：
第三开关10114连接在第二数据线1015与第四开关10115的控制端之间，第三开关10114的控制端与第二扫描线10116连接。
第四开关10115连接在第二电源线1017与对应子像素1021之间。
第一控制单元10117的第一端与第二扫描线1016连接，第一控制单元1017的第二端与第二数据线1015连接，第一控制单元1017的第三端与第二电源线1017连接，第一控制单元1017的第四端与与驱动电路1011对应的电致变色器件10421的电源引脚连接。
第二电容1016连接在第四开关10115的控制端与接地端之间。
在本实施例中，该驱动电路为LED显示面板或OLED显示面板的驱动电路。在此基础上，第四开关10115连接第二电源线1017与对应子像素1021之间具体为：第四开关10115连接在第二电源线1017与对应LED或OLED的阳极之间。
在本实施例中，通过第二扫描线1016和第二数据线1015对第三开关10114的控制，实现对第二电容10116的充放电。通过第二电容10116以 及第二电源线1017对第四开关10115的控制，实现对对应子像素1021开关控制。第一控制单元1017通过对扫描线和数据线的读取，以实现对电致变色器件10421与子像素1021同步的供电。
在本实施例中，提供了一种结构简单的，且易于控制的驱动电路1011。
在一个实施例中，如图14所示，驱动基板101包括第三数据线1018和第一栅极线1019，驱动电路101包括：第五开关10118，其中：
第五开关10118连接在第三数据线1018与对应子像素1021的第一端之间，第五开关10118的控制端与第一栅极线1019连接。
对应子像素1021的第二端接地。
对应子像素1021的第一端与对应电致变色器件10421的电源引脚连接。
在本实施例中，显示面板为LCD显示面板。在此基础上，第五开关10118连接在第三数据线1018与对应子像素1021的第一端之间具体为：第五开关10118连接在第三数据线1018与对应子像素1021对应的液晶的靠近驱动基板101的一侧玻璃基板上。对应子像素1021的第二端为对应子像素1021对应的液晶的远离驱动基板101的一侧的玻璃基板上。
需要说明的是，子像素1021对应的液晶通常是利用两块玻璃基板封装的。
在本实施例中，通过第三数据线1018和第一栅极线1019对第五开关10118的控制，实现对对应子像素1021对应液晶以及对应电致变色器件10421的同步供电。
在本实施例中，提供了一种结构简单的，且易于控制的驱动电路101。
在一个实施中，如图15所示，驱动基板101包括第四数据线10110和第二栅极线10110-1，驱动电路1011包括：第六开关10119以及第二控制单元10119-1，其中：
第六开关10119连接在第四数据线10110与对应子像素1021的第一端之间，第六开关10119的控制端与第二栅极线10110-1连接。
对应子像素1021的第二端接地。
第二控制单元10119-1的第一端与栅极线连接，第二控制单元10119-1的第二端与第四数据线10110连接，第二控制单元10119-1的第三端与对应电致变色器件10421的电源引脚连接。
在本实施例中，显示面板为LCD显示面板。在此基础上，第六开关10119连接在第四数据线10110与对应子像素1021的第一端之间具体为：第六开关10119连接在第四数据线10110与对应子像素1021对应的液晶的靠近驱动基板101的一侧玻璃基板上。对应子像素1021的第二端为对应子像素1021对应的液晶的远离驱动基板101的一侧的玻璃基板上。
需要说明的是，子像素1021对应的液晶通常是利用两块玻璃基板封装的。
在本实施例中，通过第四数据线10110和第二栅极线10110-1对第六开关10119的控制，实现对对应子像素1021对应液晶的控制。通过第二控制单元10119-1对数据线的读取，以实现对电致变色器件10421与子像素1021中对应液晶的同步供电。
在本实施例中，提供了一种结构简单的，且易于控制的驱动电路1011。
本申请实施例还提供了一种电子设备，该电子设备包括上述任一实施例提供的一种显示面板。
在一个实施例中，电子设备可以为手机、电视机、电脑等。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (10)

  1. 一种显示面板，包括：驱动基板、像素层、封装层、过滤层，其中：
    所述像素层包括阵列排布的多个子像素；
    所述过滤层设置在所述封装层的背离所述像素层的一侧，或者所述过滤层设置在所述驱动基板的背离所述像素层的一侧，所述过滤层包括层叠设置的第一偏光片和电致变色器件层；
    所述电致变色器件层包括与多个所述子像素位置一一对应的多个电致变色器件；
    所述驱动基板、所述像素层、所述封装层依次层叠设置，所述驱动基板包括与多个所述子像素一一对应连接的多个驱动电路，每个所述驱动电路为与其相连的所述子像素以及对应所述子像素的电致变色器件同步供电。
  2. 根据权利要求1所述的显示面板，其中，所述过滤层设置在所述驱动基板的背离所述像素层的一侧，所述显示面板还包括第一背光层和第二偏光片，其中：
    所述第一背光层、所述过滤层、所述驱动基板、所述像素层、所述封装层以及所述第二偏光片依次层叠设置。
  3. 根据权利要求1所述的显示面板，其中，所述过滤层设置在所述封装层的背离所述像素层的一侧，所述显示面板还包括第二背光层和第三偏光片，其中：
    所述第二背光层、所述第三偏光片、所述驱动基板、所述像素层、所述封装层以及所述过滤层依次层叠设置。
  4. 根据权利要求1所述的显示面板，其中，所述电致变色器件包括：第一导电玻璃层、储电层、传导层、电致变色层以及第二导电玻璃层，其中：
    所述第一导电玻璃层、所述储电层、所述传导层、所述电致变色层以及所述第二导电玻璃层依次层叠设置；
    所述第一导电玻璃层包括电源引脚，所述第二导电玻璃层包括接地引脚。
  5. 根据权利要求1所述的显示面板，其中，所述驱动基板包括第一数据线、第一扫描线和第一电源线，所述驱动电路包括：第一开关、第二开关以及第一电容，其中：
    所述第一开关连接在第一数据线与所述第二开关的控制端之间，所述第一开关的控制端与第一扫描线连接；
    所述第二开关连接在第一电源线与对应子像素之间；
    与所述驱动电路对应的电致变色器件与所述对应子像素并联；
    所述第一电容连接在所述第二开关的控制端与接地端之间。
  6. 根据权利要求1所述的显示面板，其中，所述驱动基板包括第二数据线、第二扫描线和第二电源线，所述驱动电路包括：第三开关、第四开关、第二电容以及第一控制单元，其中：
    所述第三开关连接在所述第二数据线与所述第四开关的控制端之间，所述第三开关的控制端与所述第二扫描线连接；
    所述第四开关连接在所述第二电源线与对应子像素之间；
    所述第一控制单元的第一端与所述第二扫描线连接，所述第一控制单元的第二端与所述第二数据线连接，所述第一控制单元的第三端与所述第二电源线连接，所述第一控制单元的第四端与与所述驱动电路对应的电致变色器件的电源引脚连接；
    所述第二电容连接在所述第四开关的控制端与接地端之间。
  7. 根据权利要求1所述的显示面板，其中，所述驱动基板包括第三数据线和第一栅极线，所述驱动电路包括：第五开关，其中：
    所述第五开关连接在所述第三数据线与对应子像素的第一端之间，所述第五开关的控制端与第一栅极线连接；
    对应子像素的第二端接地；
    对应子像素的第一端与对应电致变色器件的电源引脚连接。
  8. 根据权利要求1所述的显示面板，其中，所述驱动基板包括第四数据线和第二栅极线，所述驱动电路包括：第六开关以及第二控制单元，其中：
    所述第六开关连接在所述第四数据线与对应子像素的第一端之间，所述第六开关的控制端与所述第二栅极线连接；
    对应子像素的第二端接地；
    所述第二控制单元的第一端与所述第二栅极线连接，所述第二控制单元的第二端与所述第四数据线连接，所述第二控制单元的第三端与对应电致变色器件的电源引脚连接。
  9. 根据权利要求1所述的显示面板，其中，所述显示面板为LED显示面板、OLED显示面板或LCD显示面板。
  10. 一种电子设备，所述电子设备包括如权利要求1-9任一项所述的显示面板。
PCT/CN2022/087594 2021-04-22 2022-04-19 显示面板及电子设备 WO2022222912A1 (zh)

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