WO2017012297A1 - 显示面板和显示装置 - Google Patents

显示面板和显示装置 Download PDF

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Publication number
WO2017012297A1
WO2017012297A1 PCT/CN2016/070269 CN2016070269W WO2017012297A1 WO 2017012297 A1 WO2017012297 A1 WO 2017012297A1 CN 2016070269 W CN2016070269 W CN 2016070269W WO 2017012297 A1 WO2017012297 A1 WO 2017012297A1
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Prior art keywords
display panel
display
transparent electrode
light
transparent
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PCT/CN2016/070269
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English (en)
French (fr)
Inventor
曹玉静
宋松
Original Assignee
京东方科技集团股份有限公司
北京京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 北京京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/320,316 priority Critical patent/US10228602B2/en
Publication of WO2017012297A1 publication Critical patent/WO2017012297A1/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 
    • G02F1/15—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
    • G02F1/153—Constructional details
    • G02F1/155—Electrodes
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/25—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using haptic output
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
    • 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
    • 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
    • G02F1/133377—Cells with plural compartments or having plurality of liquid crystal microcells partitioned by walls, e.g. one microcell per pixel
    • 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
    • G02F1/1514—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 characterised by the electrochromic material, e.g. by the electrodeposited material
    • 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
    • G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
    • H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/805—Electrodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/844—Encapsulations
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates
    • H10K77/111—Flexible substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/27—Optical features of instruments using semi-transparent optical elements
    • B60K2360/28—Optical features of instruments using semi-transparent optical elements for instruments which are not visible when inactive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/33—Illumination features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/77—Instrument locations other than the dashboard
    • 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
    • G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
    • G02F2001/1635—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor the pixel comprises active switching elements, e.g. TFT
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
  • the transparent display screen is a new type of display screen, and the transparent display screen has a certain degree of light penetration.
  • image information can be displayed on the display screen, and can be seen through the display screen when no signal is displayed.
  • the background behind the display In recent years, on the basis of transparent displays, it has been proposed to form a transparent and flexible display screen using a flexible substrate.
  • the transparent and soft display screen has the characteristics of light weight, thin thickness, impact resistance, softness and transparency, so that it can be used not only It is used for conventional graphic signal display and can be mounted on the surface of non-planar objects that require transparent display; for example, it can be mounted on the vehicle windshield, transparent advertising screen, etc.
  • This transparent and flexible display further makes the transparent display softer, so the transparent display will be more widely used in the future.
  • the transparent display When using a transparent display, it is often necessary to adjust the light transmittance of the transparent display according to the use environment. For example, when the transparent display is used only for display, the light from the transparent display and the natural light passing through the transparent screen will be Entering the user's eyes causes the contrast of the displayed image on the transparent display to decrease, and the light transmittance of the transparent display needs to be lowered. For example, when the transparent display screen is mounted on the windshield of the vehicle, the light transmittance of the transparent display screen needs to be lowered for display, and in order to enable the driver to obtain a better field of view while the vehicle is traveling, it is necessary to The light transmittance of the transparent display is increased. However, the conventional display device has a fixed light transmittance after the completion of fabrication, and the light transmittance cannot be adjusted. Therefore, how to adjust the light transmittance of the display device is a problem to be solved by those skilled in the art.
  • Embodiments of the present invention provide a display panel and a display device for solving the problem that the light transmittance of the conventional display device is fixed after the fabrication is completed, and the light transmittance cannot be adjusted.
  • a display panel includes: a plurality of sub-pixel regions distributed in a matrix; at least a portion of the sub-pixel regions includes a display region for displaying an image and a light transmissive region for transparent display, The light transmitting region is provided with a dimming device that can adjust the light transmittance.
  • the dimming device comprises: an electrochromic layer, a first transparent electrode and a second transparent electrode respectively located on two sides of the electrochromic layer; the electrochromic layer is in the first transparent electrode and the first The light transmittance is adjusted by the different voltages between the two transparent electrodes to adjust the light transmittance.
  • each of the first transparent electrodes on one side of each electrochromic layer is a part of an entire planar electrode
  • the second transparent electrodes on the other side of each electrochromic layer are independent of each other.
  • the display panel further includes: at least one control circuit, and a wire corresponding to each of the second transparent electrodes, each wire being located outside the display area;
  • Each of the wires corresponding to the corresponding second transparent electrode is for connecting the second transparent electrode and the control circuit; each control circuit is for controlling a voltage between the specified second transparent electrode and the first transparent electrode.
  • the projection of the second transparent electrode and the electrochromic layer overlaps in a thickness direction of the display panel.
  • the display area is provided with an electroluminescent device.
  • the percentage of the light-transmitting area in the sub-pixel area ranges from 20% to 60%.
  • the percentage of the light-transmitting area to the sub-pixel area is 50%.
  • the display area and the light transmissive area are in close proximity and complementary in shape.
  • a display device comprising the display panel of any of the first aspects.
  • a display panel and a display device include a plurality of sub-pixel regions distributed in a matrix, at least a portion of the sub-pixel regions including a display region for displaying an image, and a light transmissive region for transparent display,
  • the light transmitting region is provided with a dimming device that can adjust the light transmittance. Therefore, the embodiment of the present invention can adjust the light transmittance of the display panel by the dimming device, thereby realizing the adjustment of the light transmittance of the display panel.
  • FIG. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of an electrochromic device according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of another electrochromic device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of still another electrochromic device according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a display panel including a control circuit according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a display panel including two control circuits according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a display panel including four control circuits according to an embodiment of the present invention.
  • FIG. 8 is a cross-sectional view of a vertical cross section of a display panel according to an embodiment of the present invention.
  • FIG. 9 is a cross-sectional view of a vertical cross section of another display panel according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a shape of a display area and a light transmission area according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of another display area and a light transmission area according to an embodiment of the present invention.
  • the same items or similar items whose functions and functions are substantially the same are used in the words “first” and “second”. Discrimination is made, and those skilled in the art will understand that the words “first”, “second”, etc. are not intended to limit the number and order of execution.
  • the “upper” and “lower” in the embodiments of the present invention are based on the sequence in which the array substrate is manufactured. For example, the upper pattern refers to a pattern formed later, and the lower pattern refers to a relative formation. picture of.
  • a display panel that can be used as a transparent display includes a display area that can be used to display an image and a light-transmissive area that can be used for transparent display. While viewing the image displayed in the display area, the human eye can also view the contents of the article or the article displayed on the back of the display panel through the light-transmitting area. When the light transmittance of the light-transmitting region is high, although the objects placed behind the display panel can be clearly seen, the light transmittance of the light-transmitting region is too high, resulting in poor display of the image in the display region.
  • the invention provides a display panel, which can adjust the light transmittance of the light-transmitting region, so that when the display panel performs transparent display and image display at the same time, the light transmittance of the light-transmitting region can be adjusted according to user requirements.
  • the display panel includes: a plurality of sub-pixel regions 10 distributed in a matrix, at least a portion of the sub-pixel regions 10 including: for displaying an image.
  • the display area 11 and the light transmissive area 12 for transparent display are provided with a dimming device 120 that can adjust the light transmittance.
  • the present invention may provide the dimming device 120 in each sub-pixel region, or may provide the dimming device 120 in a specified partial sub-pixel region.
  • the display panel generally includes a matrix area 1 of a pixel distribution, and the pixel area 1 generally includes a plurality of sub-pixels displaying different colors.
  • one pixel may include: red sub-pixel (R), green sub-pixel (R), blue sub-pixel (B), white sub- Pixels (W) four sub-pixels.
  • R red sub-pixel
  • R green sub-pixel
  • B blue sub-pixel
  • W white sub- Pixels
  • other pixels and other sub-pixels may be included in one pixel, which is not limited in the present invention.
  • the projection position of the sub-pixel on the display panel is referred to as a sub-pixel area.
  • FIG. 1 is an example in which one pixel includes three sub-pixels, and the sub-pixel area 10 including M*3N matrix distributions on the display panel is taken as an example.
  • the display area when the display panel is a liquid crystal display panel, the display area includes at least: a common electrode, a pixel electrode, a field effect thin film transistor (English: Thin Film Transistor; abbreviated as: TFT).
  • TFT Thin Film Transistor
  • the display area includes at least an electroluminescent device, a driving circuit, and the like.
  • the display panel for transparent display since the sub-pixel region of the display panel is provided with a display region and a light-transmitting region, the light-transmitting region is provided with a dimming device capable of adjusting light transmittance. Therefore, when the user views the item with the detailed features placed behind the display panel, the display panel can adjust the dimming device to increase the light transmittance of the light transmitting area, so that the user can clearly see the specific details of the item. When the display requirement of the display panel is high, the display panel can adjust the dimming device to reduce the light transmittance of the light-transmitting region, thereby improving the contrast of the image display in the display area and improving the display quality of the display area. It can be seen that the display panel can dynamically adjust the light transmittance of the light-transmitting area according to the actual needs of the user.
  • the display panel may have multiple working modes, and the light transmittances of the light-transmitting regions corresponding to different working modes are different.
  • the user can switch the working mode of the display panel according to actual needs.
  • the display panel determines the working mode according to the type of content displayed in the display area. For example, when the display area displays an image, the light transmittance of the light-transmitting area can be reduced. When the display area displays characters, the light transmittance of the light-transmitting area can be improved, so that the light-transmitting area can better view the article.
  • the dimming device may be an electrochromic device.
  • the dimming device 120 disposed in the light-transmitting region is an electrochromic device, and the dimming device 120 includes: an electrochromic layer 121, and a first transparent layer respectively located on opposite sides of the electrochromic layer.
  • the electrode 122 and the second transparent electrode 123 are respectively located on opposite sides of the electrochromic layer.
  • the electrochromic device refers to a device made of an electrochromic material.
  • electrochromic devices include positive electrochromic devices and negative electrochromic devices.
  • a positive electrochromic device refers to an electrochromic device having a high light transmittance when no voltage is applied and a low light transmittance when a voltage is applied.
  • Negative electrochromic device means when there is no applied voltage The light transmittance is low, and the light transmittance is high when a voltage is applied.
  • a dimming device is used as a positive electrochromic device as an example.
  • the voltage between the first transparent electrode 122 and the second transparent electrode 123 located on both sides of the electrochromic layer 121 can be adjusted to cause different electric fields.
  • the lower electrochromic layer 121 becomes a different color, and the electrochromic layers of different colors have different degrees of light shielding, so that the light transmittance of the light transmitting region can be adjusted.
  • the dimming device may also be a dimming film comprising two transparent conductive films and a liquid crystal/polymer hybrid material injected between the two transparent conductive films.
  • the dimming film In the absence of an electric field, the dimming film is in a transparent state; when an electric field is applied, the liquid crystal molecules are deflected, the electric field is different in size, and the degree of deflection of the liquid crystal molecules is different, and the degree of shading is also different.
  • the adjustment of the light transmittance of the light-transmitting region can be achieved by adjusting the electric field (voltage) of the light-adjusting film provided in the light-transmitting region.
  • the dimming device may also be other devices having similar properties, which are not enumerated one by one herein.
  • the light transmittance of the dimming device is higher when there is no applied voltage, so the light can pass through the display panel through the electroluminescent device, so the display panel through which the light can pass is called a transparent display panel.
  • a display device including such a display panel is referred to as a transparent display device.
  • each of the first transparent electrodes 122 on one side of each electrochromic layer is a part of an entire planar electrode; and the second transparent electrode is located on the other side of each electrochromic layer. 123 are independent of each other.
  • a portion of the entire planar electrode means that the plurality of electrochromic layers share a planar electrode that covers each of the electrochromic layers in a vertical direction.
  • each electrochromic device can be individually controlled, that is, the light transmittance of the light-transmitting regions of different sub-pixels can be flexibly controlled.
  • the embodiment of the present invention only needs to deposit a film layer of a transparent conductive material of a suitable thickness when the first transparent electrode is fabricated. Yes, it is not necessary to further photolithography of the film layer of the transparent conductive material by a photolithography process, so that the fabrication process of the electrochromic device can also be simplified.
  • each of the second transparent electrodes may be electrically connected, or a whole layer of planar electrodes common to the respective electrochromic layers may be provided.
  • first transparent electrode 122 being located below the electrochromic layer 121 and the second transparent electrode 123 being located above the electrochromic layer 121.
  • 4 shows an example in which the first transparent electrode 122 is located above the electrochromic layer 121 and the second transparent electrode 123 is located below the electrochromic layer 121.
  • the material of the first transparent electrode and the second transparent electrode may be Indium tin oxide (ITO: ITO).
  • ITO Indium tin oxide
  • the materials of the first transparent electrode and the second transparent electrode may also be other conductive materials.
  • the display panel further includes: at least one control circuit, and wires corresponding to the respective second transparent electrodes (ie, a plurality of wires respectively connecting each of the second transparent electrodes and the control circuit), wherein the wires are located outside the display area Area,
  • Each of the wires corresponding to the corresponding second transparent electrode is for connecting the second transparent electrode and the control circuit, and each control circuit is for controlling a voltage between the specified second transparent electrode and the first transparent electrode.
  • the control circuit applies a voltage to the first transparent electrode through the wire, and applies the same or different voltages to the different second transparent electrodes, respectively.
  • the wires corresponding to the respective second transparent electrodes may be formed of a transparent conductive material such as ITO or graphene. Further, the wires corresponding to the respective second transparent electrodes may also be formed of a metal conductive material. When the wire is a metal conductive material, the wire itself is opaque, so the wire should be placed outside the display area, which can prevent the wire from affecting the normal display of the display panel.
  • the display panel in FIG. 5 includes a control circuit 51, Each of the first transparent electrodes of the electrochromic device is a part of an entire planar electrode, and the second transparent electrode is independent of each other as an example to explain an embodiment of the present invention.
  • the display panel includes: m*n sub-pixel regions, the first pole of the power supply of the control circuit 51 is electrically connected to the first transparent electrode; and the second pole of the power supply of the control circuit passes the wire corresponding to each of the second transparent electrodes The two transparent electrodes are electrically connected.
  • each electrochromic device is simultaneously connected to a control circuit, and each of the second transparent electrodes is electrically connected, so that all the electrochromic devices can be simultaneously controlled by the same amplitude by one control circuit.
  • the light transmittance of the panel is simultaneously connected to a control circuit, and each of the second transparent electrodes is electrically connected, so that all the electrochromic devices can be simultaneously controlled by the same amplitude by one control circuit.
  • the light transmittance of the panel is simultaneously connected to
  • the display panel of FIG. 6 includes a first control circuit 61 and a second control circuit 62.
  • Each of the first transparent electrodes 122 of the electrochromic device is a part of an entire planar electrode, and second The embodiment in which the transparent electrode 123 is independent of each other will be described as an example.
  • the display panel includes m*n sub-pixels, the first pole of the power supply of the first control circuit 61 is electrically connected to the first transparent electrode 122 of each electrochromic device, and the second pole of the first control circuit 61 is connected to the x-row sub-pixel a second transparent electrode 123 of the electrochromic device of the region; a first pole of the power source of the second control circuit 62 electrically connects the first transparent electrode 122 of each electrochromic device, and a second pole of the power source of the second control circuit 62
  • Controlling electrochromic devices in different regions by two control circuits respectively capable of controlling electrochromic devices of 1 to x rows of sub-pixel regions and electrochromic devices of x+1 to m rows of pixel regions, respectively
  • the electrochromic device can have different light transmittances at the same time, and can more flexibly control the light transmittance of the light-transmitting regions in different regions.
  • the display panel of FIG. 7 includes a first control circuit 71, a second control circuit 72, a third control circuit 73, and a fourth control circuit 74.
  • the first transparent of the electrochromic device The embodiment in which the electrode 122 is a part of the entire planar electrode and the second transparent electrode 123 are independent of each other will be described.
  • the display panel includes m*n sub-pixels, the first pole of the power source of the first control circuit 71 is electrically connected to the first transparent electrode 122 of each electrochromic device, and the second pole of the power source of the first control circuit 71 is connected to the x-th row.
  • the first electrode of the power source of the second control circuit 72 is electrically connected to the first transparent electrode 122 of each electrochromic device, and the second control circuit 72
  • the second pole of the power source is connected to the second transparent electrode 123 of the electrochromic device of the x+1 to m row, the 1 to y column sub-pixel region;
  • the first pole of the power source of the third control circuit 73 is electrically connected to each of the electrodes
  • the first transparent electrode 122 of the color-changing device, the second electrode of the power source of the third control circuit 73 is electrically connected to the second transparent electrode 123 of the electrochromic device of the x-row, y-n to n-column sub-pixel region;
  • the fourth control circuit The first pole of the power source of 74 is electrically connected to the first transparent electrode 122 of each electrochromic device, and the second pole of the power source of the fourth control circuit 74 is connected to the electric field of x+1
  • control circuit provided by the foregoing embodiment is an implementation manner of the embodiment of the present invention, and is not a limitation of the present invention.
  • the control circuit in the embodiment of the present invention may also be implemented by other control circuits, for example:
  • the electrochromic device is controlled by a shift register circuit.
  • the number of control circuits in the embodiment of the present invention is not limited to one, two, or four, and may include more control circuits, and as the number of control circuits increases, the electrochromic device may The area of individual control is also increased, which in turn can improve the display of the display panel and make the display panel more functional.
  • the projection of the second transparent electrode 123 and the electrochromic layer 121 overlaps in the thickness direction of the display panel, and the second transparent electrode 123 does not cover the circuit structure of the sub-pixel region.
  • FIG. 8 is a cross-sectional view of a vertical cross section of the display panel.
  • the display panel includes a first substrate 81 on the bottom layer of the display panel, a second substrate 82 under the second transparent electrode 123 , and a TFT 83 .
  • the projection of the second transparent electrode 123 and the electrochromic layer 121 overlaps in the thickness direction of the display panel, the second transparent electrode 123 is located below the electrochromic layer 121, and the first transparent electrode 122 is located above the electrochromic layer 123.
  • the projection of the second transparent electrode 123 and the electrochromic layer 121 in the thickness direction of the display panel does not cover the display region, that is, the second transparent electrode and the electrochromic layer are located in the open region of the sub-pixel region, and the circuit not covering the sub-pixel region structure.
  • the second transparent electrode does not cover a circuit structure such as a TFT of the sub-pixel region
  • the second transparent electrode does not cover a circuit structure such as a driving circuit of the display panel.
  • the second transparent electrode and the electrochromic layer are disposed in the opening region of the sub-pixel region, and the influence of the electrochromic device on the normal display of the display panel can be avoided.
  • the area of the second transparent electrode is larger than the area of the electrochromic layer or the area of the electrochromic layer.
  • the area of the second transparent electrode, the one of which is larger than the other does not adjust the light transmittance of the display panel, and the excess portion also affects the aperture ratio of the display panel, so the second transparent electrode 123 and the second transparent electrode
  • the projection of the color changing layer 121 is disposed to overlap in the thickness direction of the display panel.
  • the display panel is a flexible display panel, and the display area is provided with an electroluminescent device 90.
  • An electroluminescent device (English name: Electro-Luminescence, abbreviated as EL) refers to a display device that is excited by an electroluminescent material to emit light.
  • the commonly used electroluminescent material is an organic light emitting material, and the display device formed by the organic light emitting material is an organic light emitting display device.
  • the organic light emitting display device does not require a backlight plate with respect to the liquid crystal display device, the organic light emitting display device can adhere the protective film on the back surface of the panel by the thin film packaging technology, so that the display panel becomes bendable and is not easily broken, so the embodiment of the present invention
  • the display panel provided may be a flexible display panel, and embodiments of the present invention may be used in the field of flexible display technology.
  • the percentage of the light transmissive area to the sub-pixel area ranges from 20% to 60%.
  • the percentage of the light-transmitting area to the sub-pixel area is 50%.
  • the percentage of the light-transmitting area to the sub-pixel area should be set to be small, for example, the light-transmitting area is 20% of the sub-pixel area, and when the display panel is When the light transmission effect is required to be high, the percentage of the light-transmitting area to the sub-pixel area should be set to be large, for example, the light-transmitting area is set to occupy 60% of the sub-pixel area.
  • the ratio of the area of the light-transmitting area and the display area may be determined according to an actual application scenario.
  • the shapes of the display area 11 and the light-transmitting area 12 may respectively be regular shapes, and the two may be adjacent and complementary in shape. Specifically, if the shape of the sub-pixel region is a rectangle, the shape of the display region 11 and the light-transmitting region 12 may be rectangular. Alternatively, the display area is a rectangle, and the light transmission area is a ring that surrounds the rectangle.
  • the display when the shape of the sub-pixel area is a circle, the display may be set.
  • the display area 11 is a circle in the sub-pixel area, and the light transmission area 12 is a circular ring circumscribing the display area 11.
  • the shape of the display area and the light-transmitting area of the present invention may also be set to other shapes according to actual needs, and all other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present invention.
  • a further embodiment of the present invention provides a display device, which includes the display panel provided by any of the above embodiments.
  • the display device may be: electronic paper, mobile phone, tablet computer, television, display, notebook computer, digital photo frame, navigator, etc., any product or component having a display function.
  • a display device includes a plurality of sub-pixel regions distributed in a matrix, at least a portion of the sub-pixel regions including a display region for displaying an image, and a light transmissive region for transparent display.
  • the dimming device can adjust the light transmittance, so that the embodiment of the present invention can adjust the light transmittance of the display panel by the dimming device, thereby realizing the adjustment of the light transmittance of the display panel.

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Abstract

一种显示面板和显示装置，其能够调节光透过率。该显示面板包括：呈矩阵分布的多个子像素区域(10)；子像素区域(10)中的至少一部分包括：用于显示图像的显示区域(11)和用于透明显示的透光区域(12)，透光区域(12)设置有可调节光透过率的调光器件(120)。

Description

显示面板和显示装置
相关申请的交叉引用
本申请要求于2015年7月20日递交中国专利局的、申请号为201510428777.2的中国专利申请的权益，该申请的全部公开内容以引用方式并入本文。
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和显示装置。
背景技术
随着显示技术的不断发展，显示器已经逐渐被各种电子设备所广泛应用，显示器的多元化也逐渐成为电子设备的重要特色之一。其中，透明显示屏是一种新型显示屏幕，透明显示屏具有一定程度的光穿透性，用于信号显示时可在显示屏上显示图像信息，不进行信号显示时可透过显示屏看到显示屏后方的背景。近年来，在透明显示器的基础上又提出了使用柔性基板形成一种透明且柔软的显示屏，透明且柔软的显示屏具有重量轻、厚度薄、耐冲击、柔软、透明等特性，所以不仅可以用于常规的图形信号显示，而且可以安装在需要透明显示的非平面物体的表面上；例如：可安装在车辆挡风玻璃、透明广告屏幕上等。这种透明且柔软的显示屏进一步使透明显示屏具有了柔软的特性，所以透明显示屏在将来的应用范围将更加广泛。
在使用透明显示屏时常常需要根据使用环境对透明显示屏的光透过率进行调整，例如：将透明显示屏仅仅用于显示时，透明显示屏发出的光和穿过透明屏的自然光均会进入用户眼中，导致透明显示屏显示所显示的图像对比度降低，此时需将透明显示屏的光透过率调低。再例如：将透明显示屏安装在车辆挡风玻璃时，用于显示时需要将透明显示屏的光透过率调低，而在车辆行进中为了使驾驶员可以获得更好的视野，需要将透明显示屏的光透过率调高。然而，现有的显示装置在制作完成后光透过率是固定的，无法进行光透过率的调节。所以如何调节显示装置的光透过率是本领域技术人员亟待解决的一个问题。
发明内容
本发明的实施例提供一种显示面板和显示装置，用于解决现有的显示装置在制作完成后光透过率是固定的，无法进行光透过率的调节的问题。
为达到上述目的，本发明的实施例采用如下技术方案：
第一方面，提供一种显示面板，包括：呈矩阵分布的多个子像素区域；所述子像素区域中的至少一部分包括用于显示图像的显示区域和用于透明显示的透光区域，所述透光区域设置有可调节光透过率的调光器件。
可选的，所述调光器件包括：电致变色层、分别位于所述电致变色层两侧的第一透明电极和第二透明电极；所述电致变色层在第一透明电极和第二透明电极之间不同电压的作用下变色来调节光透过率。
可选的，位于各电致变色层一侧的各第一透明电极为一整个面状电极的一部分；
位于各电致变色层另一侧的第二透明电极相互独立。
可选的，所述显示面板还包括：至少一个控制电路，以及与各第二透明电极对应的导线，各导线位于显示区域之外的区域；
其中每个与相应第二透明电极对应的导线用于连接该第二透明电极和所述控制电路；每个控制电路用于控制指定的第二透明电极和第一透明电极之间的电压。
可选的，所述第二透明电极与所述电致变色层的投影在显示面板的厚度方向上重叠。
可选的，所述显示区域设置有电致发光器件。
可选的，透光区域占子像素区域的百分比范围为20％至60％。
可选的，透光区域占子像素区域的百分比为50％。
可选的，显示区域和透光区域紧邻且形状互补。
第二方面，提供一种显示装置，包括第一方面任一项所述的显示面板。
本发明实施例提供的显示面板和显示装置，包括呈矩阵分布的多个子像素区域，子像素区域中的至少一部分包括用于显示图像的显示区域，以及用于透明显示的透光区域，所述透光区域设置有可调节光透过率的调光器件。所以本发明的实施例能够通过调光器件调节显示面板的光透过率，实现了调节显示面板的光透过率。
附图说明
为了更清楚地说明本发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地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，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为本发明实施例提供的显示面板的示意性结构图；
图2为本发明实施例提供的电致变色器件示意性结构图；
图3为本发明实施例提供的另一种电致变色器件的示意性结构图；
图4为本发明实施例提供的再一种电致变色器件的示意性结构图；
图5为本发明实施例提供的包括一个控制电路的显示面板的示意性结构图；
图6为本发明实施例提供的包括两个控制电路的显示面板的示意性结构图；
图7为本发明实施例提供的包括四个控制电路的显示面板的示意性结构图；
图8为本发明实施例提供的一种显示面板的垂直截面的剖面图；
图9为本发明实施例提供的另一种显示面板的垂直截面的剖面图；
图10为本发明实施例提供的一种显示区域和透光区域的形状示意图；
图11为本发明实施例提供的另一种显示区域和透光区域的形状示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案 进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明的是，为了便于清楚描述本发明实施例的技术方案，在本发明的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分，本领域技术人员可以理解“第一”、“第二”等字样并不是在对数量和执行次序进行限定。此外，本发明实施例中的“上”、“下”以制造阵列基板时的先后顺序为准，例如，在上的图案是指相对在后形成的图案，在下的图案是指相对在先形成的图案。
考虑到实际应用场景中，可用作透明显示的显示面板包括：可用于显示图像的显示区域和可用于透明显示的透光区域。人眼在观看显示区域显示的图像的同时，还可通过透光区域观看显示面板后面摆设的物品或物品上的介绍内容等。而当透光区域光透过率较高时，虽然可以清晰看到显示面板后面摆放的物品，但由于透光区域光透过率太高，导致显示区域图像显示效果不佳。此外，用户在观看透光区域背后摆放的物品时，有时候需要清晰看到物品的具体细节，这就对透光区域的光透过率要求较高，但有时候则不需要清晰看到物品的具体细节，这就对透光区域的光透过率要求较低。本发明提供一种显示面板，可调节透光区域的光透过率，这样，显示面板在同时进行透明显示和图像显示时，可根据用户需求调节透光区域的光透过率。
本发明的实施例提供一种显示面板，具体的，参照图1所示，该显示面板包括：呈矩阵分布的多个子像素区域10，子像素区域10中的至少一部分包括：用于显示图像的显示区域11和用于透明显示的透光区域12，透光区域12设置有可调节光透过率的调光器件120。
可选的，本发明可在每个子像素区域设置调光器件120，也可以在指定的部分子像素区域设置调光器件120。
具体的，参照图1所示，显示面板通常包括矩阵分布的像素区域1，像素区域1通常包括若干个显示不同颜色的子像素。例如：一个像素可包括：红色子像素(R)、绿色子像素(R)、蓝色子像素(B)、白色子 像素(W)四个子像素。当然一个像素中还可包括其他个数和颜色的子像素，本发明对此不做限定。子像素在显示面板上的投影位置称为子像素区域，图1以一个像素包括三个子像素，显示面板上包括M*3N个矩阵分布的子像素区域10为例进行说明。
示例性的，当显示面板为液晶显示面板时，显示区域至少包括：公共电极、像素电极、场效应薄膜晶体管(英文：Thin Film Transistor；简称：TFT)等。当显示面板为电致发光显示面板时，显示区域至少包括电致发光器件和驱动电路等。
上述图1所示的用于透明显示的显示面板，由于该显示面板的子像素区域设置显示区域和透光区域，透光区域设置可调节光透过率的调光器件。因此，当用户在观看显示面板背后摆放的具有细节特征的物品时，显示面板可调节调光器件以提高透光区域的光透过率，这样，用户可清晰看到物品的具体细节。当用户对显示面板的显示效果要求较高时，显示面板可调节调光器件，以降低透光区域的光透过率，这样，可提高显示区域图像显示的对比度，提高显示区域的显示品质。可见，显示面板可根据用户的实际需求动态调节透光区域的光透过率。
在具体实施时，显示面板可具有多个工作模式，不同工作模式对应的透光区域的光透过率不同。用户可根据实际需求切换显示面板的工作模式。或者，显示面板根据显示区域显示内容的类型，确定工作模式。比如，当显示区域显示图像时，可以降低透光区域的光透过率，当显示区域显示文字时，可以提高透光区域的光透过率，使得透光区域观看物品效果更佳。
可选的，所述调光器件可以是电致变色器件。
具体的，参照图2所示，设置于透光区域的调光器件120为电致变色器件，该调光器件120包括：电致变色层121、分别位于电致变色层两侧的第一透明电极122和第二透明电极123。
其中，电致变色器件是指利用电致变色材料做成的器件。通常电致变色器件包括正性电致变色器件和负性电致变色器件。其中，正性电致变色器件是指，在没有外加电压时光透过率较高，而在施加电压时光透过率较低的电致变色器件。负性电致变色器件则是指在没有外加电压时 光透过率较低，在施加电压时光透过率较高。
本发明以下的实施中均以调光器件为正性电致变色器件为例进行说明。
在实际应用场景中，当需要调节调光器件的光透过率时，可以调节位于电致变色层121两侧的第一透明电极122和第二透明电极123之间的电压，使得不同电场作用下的电致变色层121变为不同的颜色，不同颜色的电致变色层，其遮光程度不同，这样可以实现对透光区域光透过率的调节。
示例性的，调光器件还可以为调光膜，调光膜包括两张透明导电膜，以及两张透明导电膜中间注入的液晶/聚合物混合材料。在没有电场作用的情况下，调光膜处于透明状态；当通入电场时，液晶分子发生偏转，电场大小不同，液晶分子偏转程度不同，则遮光程度也不同。通过调节透光区域设置的调光膜的电场(电压)大小，可以实现对透光区域的光透过率的调节。
以上仅为本发明实施例两种可能的实现方式，调光器件还可以为其他具有类似性质的器件，本文不再逐一列举。此外，还需要说明的是，调光器件在没有外加电压时光透过率较高，所以光线能够通过电致发光器件穿过显示面板，所以这种光线能够穿过的显示面板称为透明显示面板，而包括这种显示面板的显示装置称为透明显示装置。
进一步的，参照图3、图4所示，位于各电致变色层一侧的各第一透明电极122为一整个面状电极的一部分；位于各电致变色层另一侧的第二透明电极123相互独立。所述一整个面状电极的一部分是指，多个电致变色层共用一个面状电极，该面状电极在垂直方向上覆盖每一个电致变色层。
这样，由于不同的电致变色层对应的第二透明电极相互独立(非电连接)，可以为各电致变色层对应的面状电极施加一个电压，为不同的第二透明电极施加不同的电压，就可以分别单独控制每个电致变色器件的光透过率，即，可灵活控制不同子像素透光区域的光透过率。
此外，相比于第一透明电极与第二透明电极均相互独立，本发明的实施例在制作第一透明电极时只需沉积合适厚度透明导电材料的膜层即 可，无需进一步通过光刻工艺对透明导电材料的膜层进行光刻，因此还可以简化电致变色器件的制作工艺。
当然，若需要各电致变色器件的光透过率一致，则可以设置各第二透明电极电连接，或者设置一整层各电致变色层共用的面状电极。
图3以第一透明电极122位于电致变色层121之下，而第二透明电极123位于电致变色层121之上为例说明。图4则以第一透明电极122位于电致变色层121之上，第二透明电极123位于电致变色层121之下为例说明。
示例性的，第一透明电极和第二透明电极的材料可以为铟锡氧化物(英文：Indium tin oxide，简称：ITO)，当然第一透明电极和第二透明电极的材料还可以为其他导电性良好且光透过率高的材料，例如：石墨烯。
进一步的，显示面板还包括：至少一个控制电路，以及与各第二透明电极对应的导线(即，分别连接每一个第二透明电极和控制电路的多条导线)，各导线位于显示区域之外的区域，
其中每个与相应第二透明电极对应的导线用于连接该第二透明电极和控制电路，并且每个控制电路用于控制指定的第二透明电极和第一透明电极之间的电压。
当然，还包括连接第一透明电极和控制电路的导线。控制电路通过导线为第一透明电极施加电压，分别为不同的第二透明电极施加相同或不同的电压。
示例性的，与各第二透明电极对应的导线可以由透明导电材料制作形成，例如：ITO或者石墨烯等。此外，与各第二透明电极对应的导线还可以由金属导电材料制作形成。当导线为金属导电材料时，导线本身不透明，所以应将导线设置于显示区域之外的区域，这样能够避免导线影响显示面板的正常显示。
以下分别以显示面板包括1、2、4个控制电路、控制电路包括低压电源为例对本发明的实施例进行说明。
具体的，参照图5所示，图5中以显示面板包括一个控制电路51， 电致变色器件的各第一透明电极为一整个面状电极的一部分，第二透明电极相互独立为例对本发明的实施例进行说明。其中，显示面板包括：m*n个子像素区域，控制电路51的电源的第一极与第一透明电极电连接；控制电路的电源的第二极通过与各第二透明电极对应的导线与第二透明电极电连接。图5所对应的实施例中，各个电致变色器件同时连接于一个控制电路上，且各第二透明电极电连接，因此可以通过一个控制电路同时控制所有电致变色器件以相同的幅度调整显示面板的光透过率。
进一步的，参照图6所示，图6中以显示面板包括第一控制电路61和第二控制电路62，电致变色器件的各第一透明电极122为一整个面状电极的一部分，第二透明电极123相互独立为例对本发明的实施例进行说明。显示面板包括m*n个子像素，第一控制电路61的电源的第一极电连接各个电致变色器件的第一透明电极122，第一控制电路61的第二极连接1至x行子像素区域的电致变色器件的第二透明电极123；第二控制电路62的电源的第一极电连接各个电致变色器件的第一透明电极122，第二控制电路62的电源的第二极连接x+1至m行子像素区域的电致变色器件的第二透明电极123，其中，m>x+1。通过两个控制电路对不同区域的电致变色器件进行控制，能够分别控制1至x行子像素区域的电致变色器件和x+1至m行像素区域的电致变色器件，这两个区域的电致变色器件在同一时刻的光透过率可以不同，可更加灵活控制不同区域透光区域的光透过率。
再进一步的，参照图7所示，图7中以显示面板包括第一控制电路71、第二控制电路72、第三控制电路73和第四控制电路74，电致变色器件的各第一透明电极122为一整个面状电极的一部分，第二透明电极123相互独立为例对本发明的实施例进行说明。显示面板包括m*n个子像素，第一控制电路71的电源的第一极电连接各个电致变色器件的第一透明电极122，第一控制电路71的电源的第二极连接1至x行、1至y列子像素区域的电致变色器件的第二透明电极123；第二控制电路72的电源的第一极电连接各个电致变色器件的第一透明电极122，第二控制电路72的电源的第二极连接x+1至m行、1至y列子像素区域的电致变色器件的第二透明电极123；第三控制电路73的电源的第一极电连接各个电 致变色器件的第一透明电极122，第三控制电路73的电源的第二极电连接1至x行、y至n列子像素区域的电致变色器件的第二透明电极123；第四控制电路74的电源的第一极电连接各个电致变色器件的第一透明电极122，第四控制电路74的电源的第二极连接x+1至m行、y+1至n列子像素区域的电致变色器件的第二透明电极123。当电致变色器件包括四个控制电路时，可以分四个区域对电致变色器件进行控制，进一步实现了电致变色器件控制的多元化。
需要说明的是，上述实施例提供的控制电路为本发明实施例的一种实现方式，并不能成为本发明的限制，本发明的实施例中的控制电路还可以通过其他控制电路实现，例如：通过移位寄存电路对电致变色器件进行控制。此外，本发明的实施例中控制电路的个数也并不局限于1个、2个或者4个，还可包括更多的控制电路，而随着控制电路数量的增加，电致变色器件可以单独控制的区域也会增加，进而可以提高显示面板的显示效果并使显示面板实现更多功能。
优选的，第二透明电极123与电致变色层121的投影在显示面板的厚度方向上重叠，第二透明电极123不覆盖子像素区域的电路结构。
具体的，参照图8所示，图8为显示面板的垂直截面的剖面图，显示面板包括位于显示面板底层的第一基板81、位于第二透明电极123下方的第二基板82以及TFT 83，第二透明电极123与电致变色层121的投影在显示面板的厚度方向上重叠，第二透明电极123位于电致变色层121的下方，第一透明电极122位于电致变色层的上方123，第二透明电极123与电致变色层121在显示面板的厚度方向上的投影不覆盖显示区域，即第二透明电极与电致变色层位于子像素区域的开口区域，不覆盖子像素区域的电路结构。具体的，当显示面板为液晶显示面板时第二透明电极不覆盖子像素区域的TFT等电路结构，当显示面板为有机发光显示面板时第二透明电极不覆盖显示面板的驱动电路等电路结构。
上述将第二透明电极与电致变色层设置于子像素区域的开口区域，能够避免电致变色器件对显示面板正常显示的影响。此外，若第二透明电极123与电致变色层121的投影在显示面板的厚度方向上不重叠，则无论第二透明电极面积大于电致变色层的面积还是电致变色层的面积大 于第二透明电极的面积，其一方比另一方多出的部分并不能调节显示面板的光透过率，并且多出部分还会影响显示面板的开口率，因此第二透明电极123与电致变色层121的投影设置成在显示面板的厚度方向上重叠。
示例性的，参照图9所示，显示面板为柔性显示面板，显示区域设置有电致发光器件90。
图9为显示面板的垂直截面的剖面图，显示面板包括位于显示面板底层的第一基板81、位于第二透明电极123下方的第二基板82以及TFT83，电致发光器件90位于TFT器件的上方。电致发光器件(英文全称：Electro-Luminescence，简称：EL)是指利用电致发光材料受到激励而发光的显示器件。其中，常用的电致发光材料为有机发光材料，通过有机发光材料制作形成的显示设备为有机发光显示器件。由于有机发光显示器件相对于液晶显示设备无需背光板，因此，有机发光显示器件能够借助薄膜封装技术，在面板背面粘贴保护膜，让显示面板变得可弯曲，不易折断，所以本发明的实施例提供的显示面板可以为柔性显示面板，本发明的实施例可以用柔性显示技术领域。
示例性的，透光区域占子像素区域的百分比范围为20％至60％。
进一步的，透光区域占子像素区域的百分比为50％。
在实际应用中，当对显示面板的显示效果要求较高时，应当设置透光区域占子像素区域的百分比较小，例如：设置透光区域占子像素区域的20％，而当显示面板的透光效果要求较高时应当设置透光区域占子像素区域的百分比较大，例如：设置透光区域占子像素区域的60％。具体的，透光区域和显示区域的面积的比值可以根据实际的应用场景确定。此外，设置透光区域占子像素区域的百分比为50％能够使显示面板的显示区域以及透光区域分布更加均匀，从而平衡显示面板的显示效果和透光效果。
进一步的，参照图10所示，显示区域11和透光区域12的形状分别可以为规则的形状，二者可以紧邻且形状互补。具体的，若子像素区域的形状为矩形时，显示区域11和透光区域12的形状可以为矩形状。或者，显示区域为矩形，透光区域为环绕矩形的环。
此外，参照图11所示，当子像素区域的形状为圆形时，可以设置显 示区域11为子像素区域内的圆形，所示透光区域12为与显示区域11外接的圆环。
本发明的显示区域和透光区域的形状还可根据实际需求设置为其他形状，本领域技术人员在没有做出创造性劳动前提下所获得的所有其他实施方式，都属于本发明保护的范围。
本发明再一实施例提供一种显示装置，该显示装置包括上述任一实施例提供的显示面板。
另外，显示装置可以为：电子纸、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
本发明实施例提供的显示装置，包括呈矩阵分布的多个子像素区域，子像素区域中的至少一部分包括用于显示图像的显示区域，以及用于透明显示的透光区域，透光区域设置有可调节光透过率的调光器件，所以本发明的实施例能够通过调光器件调节显示面板的光透过率，实现了调节显示面板的光透过率。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。

Claims (10)

  1. 一种显示面板，包括：呈矩阵分布的多个子像素区域；所述子像素区域中的至少一部分包括：用于显示图像的显示区域和用于透明显示的透光区域，其特征在于，所述透光区域设置有可调节光透过率的调光器件。
  2. 根据权利要求1所述的显示面板，其特征在于，所述调光器件包括：电致变色层、分别位于所述电致变色层两侧的第一透明电极和第二透明电极；所述电致变色层在第一透明电极和第二透明电极之间不同电压的作用下变色来调节光透过率。
  3. 根据权利要求2所述的显示面板，其特征在于，位于各电致变色层一侧的各第一透明电极为一整个面状电极的一部分；
    位于各电致变色层另一侧的第二透明电极相互独立。
  4. 根据权利要求3所述的显示面板，其特征在于，所述显示面板还包括：至少一个控制电路，以及与各第二透明电极对应的导线，各导线位于显示区域之外的区域；
    其中每个与相应第二透明电极对应的导线用于连接该第二透明电极和所述控制电路；并且每个控制电路用于控制指定的第二透明电极和第一透明电极之间的电压。
  5. 根据权利要求3所述的显示面板，其特征在于，所述第二透明电极与所述电致变色层的投影在显示面板的厚度方向上重叠。
  6. 根据权利要求1所述的显示面板，其特征在于，所述显示面板为柔性显示面板，所述显示区域设置有电致发光器件。
  7. 根据权利要求1所述的显示面板，其特征在于，透光区域占子像素区域的百分比范围为20％至60％。
  8. 根据权利要求7所述的显示面板，其特征在于，透光区域占子像素区域的百分比为50％。
  9. 根据权利要求1所述的显示面板，其特征在于，所述显示区域和 透光区域紧邻且形状互补。
  10. 一种显示装置，其特征在于，包括权利要求1-9任一项所述的显示面板。
PCT/CN2016/070269 2015-07-20 2016-01-06 显示面板和显示装置 WO2017012297A1 (zh)

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