WO2022205858A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置 Download PDF

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Publication number
WO2022205858A1
WO2022205858A1 PCT/CN2021/125708 CN2021125708W WO2022205858A1 WO 2022205858 A1 WO2022205858 A1 WO 2022205858A1 CN 2021125708 W CN2021125708 W CN 2021125708W WO 2022205858 A1 WO2022205858 A1 WO 2022205858A1
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WIPO (PCT)
Prior art keywords
light
emitting
regions
pixel circuit
display panel
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PCT/CN2021/125708
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English (en)
French (fr)
Inventor
朱健超
史世明
刘利宾
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京东方科技集团股份有限公司
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Priority to US18/279,305 priority Critical patent/US20240155905A1/en
Publication of WO2022205858A1 publication Critical patent/WO2022205858A1/zh

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/128—Active-matrix OLED [AMOLED] displays comprising two independent displays, e.g. for emitting information from two major sides of the display
    • 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
    • H10K50/81—Anodes
    • 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
    • H10K50/82—Cathodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/123—Connection of the pixel electrodes to the thin film transistors [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
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/126—Shielding, e.g. light-blocking means over the TFTs
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8051—Anodes
    • H10K59/80518—Reflective anodes, e.g. ITO combined with thick metallic layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8052—Cathodes
    • H10K59/80524—Transparent cathodes, e.g. comprising thin metal layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/88—Dummy elements, i.e. elements having non-functional features
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/302—Details of OLEDs of OLED structures
    • H10K2102/3023—Direction of light emission
    • H10K2102/3031—Two-side emission, e.g. transparent OLEDs [TOLED]

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a display panel and a display device.
  • Double-sided display is also an important direction for the development of display devices in the future. Double-sided display can extend the screen space, make the field of view wider, and can switch quickly and handle more work. It has huge advantages in advertising display, video conference and other fields. potential application value.
  • the existing double-sided display technology is actually a dual-screen display, that is, two screens are used for double-sided display, which is thick, heavy, and expensive, and cannot meet people's needs for double-sided display.
  • Embodiments of the present disclosure provide a display panel and a display device for realizing double-sided display.
  • a display panel provided by an embodiment of the present disclosure includes:
  • the transparent substrate includes a display area; the display area includes: a plurality of first light-emitting areas arranged in an array along a first direction and a second direction, and a plurality of second light-emitting areas arranged in an array along the first direction and the second direction
  • the first light-emitting area and the second light-emitting area are alternately arranged along the third direction; the first direction and the second direction intersect, and the third direction intersects both the first direction and the second direction;
  • a light-emitting device located on one side of the transparent substrate, comprising: a top-emitting light-emitting device located in the first light-emitting region, and a bottom-emitting light-emitting device located in the second light-emitting region;
  • the driving circuit is located between the film layer where the light-emitting device is located and the transparent substrate substrate, and is electrically connected to the light-emitting device; the driving circuit includes: a plurality of pixel circuits with the same number as the first light-emitting region, and a plurality of pixel circuits electrically connected to the pixel circuits. Multiple signal lines.
  • a top emission light emitting device includes:
  • a first anode including a reflective material
  • a first light-emitting layer located on the side of the first anode away from the driving circuit
  • a first cathode located on the side of the first light-emitting layer away from the first anode, comprising a light-transmitting material
  • Bottom-emitting light-emitting devices include:
  • the second anode comprising a light-transmitting material, located in the same film layer as the first anode;
  • the second light-emitting layer is located on the side of the second anode away from the driving circuit, and is located in the same film layer as the first light-emitting layer;
  • the second cathode comprising a light-transmitting material, is located on the side of the second light-emitting layer away from the second anode, and is arranged in the same layer as the first cathode and forms an electrode connected to the entire surface;
  • the third cathode located on the side of the second cathode away from the second light-emitting layer in the second light-emitting region, includes a reflective material.
  • the display panel further includes:
  • the light-shielding layer is located between the transparent substrate substrate and the film layer where the driving circuit is located; the plurality of first light-emitting regions are connected to each other, and the light-shielding layer covers the area formed by the interconnection of the plurality of first light-emitting regions; the light-shielding layer also has: exposing the second light-emitting region The first openings of the light-emitting area, the number of the first openings is equal to the number of the second light-emitting area.
  • the number of top-emitting light-emitting devices included in each first light-emitting region is the same as the number of bottom-emitting light-emitting devices included in each second light-emitting region.
  • the emission color of the top emission light-emitting device included in the first light-emitting region is the same as the emission color of the bottom-emitting light-emitting device included in the second light-emitting region.
  • each first light-emitting region includes: a red top-emitting light-emitting device, a blue-light top-emitting light-emitting device, and a green top-emitting light-emitting device;
  • Each of the second light emitting regions includes a red bottom emitting light emitting device, a blue bottom emitting light emitting device, and a green bottom emitting light emitting device.
  • the first light-emitting area arranged in the array is divided into a plurality of first light-emitting columns extending along the first direction and arranged along the second direction; the plurality of second light-emitting areas arranged in the array is divided into a plurality of along the a second light-emitting column extending in the first direction and arranged along the second direction;
  • the top-emission light-emitting devices included in the first light-emitting regions have the same light-emitting colors; in the even-numbered first light-emitting columns, the top-emitting light-emitting devices included in the first light-emitting regions have the same light-emitting colors.
  • the light-emitting color type of the top-emission light-emitting device included in each first light-emitting area in the odd-numbered first light-emitting column is the same as the light-emitting color type of the top-emitting light-emitting device included in each first light-emitting area in the even-numbered first light-emitting column Not exactly the same;
  • the bottom-emitting light-emitting devices included in each second light-emitting region have the same light-emitting color types; in the even-numbered second light-emitting columns, the bottom-emitting light-emitting devices included in each second light-emitting region have the same light-emitting color types.
  • the light-emitting color types of the bottom-emitting light-emitting devices included in each second light-emitting region in the odd-numbered second light-emitting columns are the same as the light-emitting color types of the bottom-emitting light-emitting devices included in each second light-emitting region in the even-numbered second light-emitting columns Not exactly the same;
  • the light-emitting color type of the top-emitting light-emitting device included in each first light-emitting region in the odd-numbered first light-emitting column is the same as the light-emitting color type of the bottom-emitting light-emitting device included in each second light-emitting region in the odd-numbered second light-emitting column;
  • the light-emitting color types of the top-emitting light-emitting devices included in each first light-emitting region in the even-numbered first light-emitting columns are the same as the light-emitting color types of the bottom-emitting light-emitting devices included in each second light-emitting region in the even-numbered second light-emitting columns.
  • each of the first light-emitting regions in the odd-numbered first light-emitting columns includes: red top-emitting light-emitting devices and green top-emitting light-emitting devices arranged along the second direction;
  • Each first light-emitting region includes: blue top-emitting light-emitting devices and green top-emitting light-emitting devices arranged along the second direction;
  • Each second light-emitting area in the odd-numbered second light-emitting columns includes: red bottom-emitting light-emitting devices and green-light bottom-emitting light-emitting devices arranged along the second direction; each second light-emitting area in the even-numbered second light-emitting columns It includes: blue bottom emitting light emitting devices and green bottom emitting light emitting devices arranged along the second direction.
  • the number of top-emitting light-emitting devices included in each first light-emitting region is different from the number of bottom-emitting light-emitting devices included in each second light-emitting region.
  • each first light-emitting region includes three top-emitting light-emitting devices with different light-emitting colors
  • Each of the second light emitting regions includes a bottom emission light emitting device.
  • each first light-emitting region includes: a red top-emitting light-emitting device, a blue-light top-emitting light-emitting device, and a green top-emitting light-emitting device;
  • the plurality of second light-emitting regions arranged in the array are divided into a plurality of second light-emitting groups arranged along the second direction;
  • Each second light-emitting group includes: a red second light-emitting column, a blue second light-emitting column and a green second light-emitting column extending along the first direction and arranged in sequence along the second direction;
  • Each second light-emitting region in the red second light-emitting column includes: a red bottom-emitting light-emitting device;
  • Each second light-emitting region in the blue second light-emitting column includes: a blue bottom-emitting light-emitting device
  • Each second light-emitting region in the green second light-emitting column includes: a green bottom-emitting light-emitting device.
  • each first light-emitting region includes: a red top-emitting light-emitting device, a blue-light top-emitting light-emitting device, and a green top-emitting light-emitting device;
  • the plurality of second light-emitting regions arranged in the array are divided into a plurality of pixel groups, and each pixel group includes four second light-emitting regions of two rows by two columns;
  • Each pixel group includes at least a red bottom-emitting light-emitting device, a blue-light bottom-emitting light-emitting device, and a green top-emitting light-emitting device.
  • each first light-emitting region includes m top-emitting light-emitting devices, and each second light-emitting region includes n bottom-emitting light-emitting devices, wherein m and n are both positive integers;
  • a pixel circuit corresponding to the first light-emitting area includes:
  • n second pixel circuits each of which is electrically connected to a bottom-emitting light-emitting device
  • the plurality of signal lines include:
  • the first pixel circuit and the second pixel circuit in the same pixel circuit are arranged along the second direction, and the first pixel circuit and the second pixel circuit in the same pixel circuit share the gate driving signal line.
  • the plurality of first light-emitting regions arranged in the array are divided into a plurality of first light-emitting rows extending along the second direction and arranged along the first direction;
  • a pixel circuit corresponding to the first light-emitting area includes:
  • One pixel circuit corresponding to each first light-emitting area in the odd-numbered first light-emitting row further includes:
  • One pixel circuit corresponding to each first light-emitting area in the first light-emitting row of the even-numbered rows further includes:
  • the two second pixel circuits are respectively electrically connected with the two bottom emission light-emitting devices adjacent in the second direction; the circuit compositions of the dummy pixel circuit and the second pixel circuit are the same.
  • the plurality of signal lines include:
  • the first pixel circuit and the dummy pixel circuit are arranged along the second direction; In one pixel circuit corresponding to the area, the first pixel circuit and the second pixel circuit are arranged along the second direction, and the first pixel circuit and the second pixel circuit share a gate driving signal line.
  • the circuit composition of the first pixel circuit and the second pixel circuit are the same.
  • each first light-emitting region includes m top-emitting light-emitting devices, and each second light-emitting region includes m bottom-emitting light-emitting devices, wherein m is a positive integer;
  • Each pixel circuit includes:
  • m fourth pixel circuits each of which includes: a first sub-pixel circuit and a second sub-pixel circuit electrically connected to the third pixel circuit; the first sub-pixel circuit is also electrically connected to the top-emission light-emitting device, and the first sub-pixel circuit
  • the two sub-pixel circuits are also electrically connected to the bottom emission light-emitting device; the first sub-pixel circuit and the second sub-pixel circuit electrically connected to the same third pixel circuit have the same emission color of the electrically connected light-emitting devices.
  • the third pixel circuit includes: a drive transistor
  • the signal line includes: a first light-emitting control signal line and a second light-emitting control signal line;
  • the first sub-pixel circuit includes: a first transistor, the source of the first transistor is electrically connected to the drain of the driving transistor, the gate of the first transistor is electrically connected to the first light-emitting control signal line, the drain of the first transistor is electrically connected to the top The light-emitting device is electrically connected;
  • the second sub-pixel circuit includes: a second transistor, the source of the second transistor is electrically connected to the drain of the driving transistor, the gate of the second transistor is electrically connected to the second light-emitting control signal line, the drain of the second transistor is electrically connected to the bottom
  • the emission light-emitting device is electrically connected.
  • a display device provided by an embodiment of the present disclosure includes the display panel provided by an embodiment of the present disclosure.
  • FIG. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of another display panel according to an embodiment of the present disclosure.
  • FIG. 3 is a schematic structural diagram of another display panel according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of another display panel according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of another display panel according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another display panel according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another display panel according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of another display panel according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of another display panel according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of still another display panel according to an embodiment of the present disclosure.
  • An embodiment of the present disclosure provides a display panel. As shown in FIG. 1 and FIG. 2 , the display panel includes:
  • the transparent substrate substrate 1 includes a display area; the display area includes: a plurality of first light-emitting areas 2 arranged in an array along the first direction Y and the second direction X, and a plurality of arrays along the first direction Y and the second direction X
  • the second light-emitting area 3 is arranged; the first light-emitting area 2 and the second light-emitting area 3 are alternately arranged along the third direction Z; the first direction Y and the second direction X intersect, and the third direction Z and the first direction Y and The second direction X all cross;
  • the light-emitting device 4, located on one side of the transparent substrate 1, includes: a top-emitting light-emitting device 5 located in the first light-emitting region 2, and a bottom-emitting light-emitting device 6 located in the second light-emitting region 3;
  • the driving circuit 7 is located between the film layer where the light-emitting device 4 is located and the transparent substrate 1 in the first light-emitting region 2, and is electrically connected to the light-emitting device 4; including: a plurality of pixel circuits corresponding to the same number as the first light-emitting region 2 8 , and a plurality of signal lines 9 electrically connected to the pixel circuit 7 .
  • the display panel provided by the embodiment of the present disclosure, on a transparent substrate, a top-emitting light-emitting device with front-side emission and a bottom-emitting light-emitting device with backside emission are simultaneously formed, so that the display panel can realize simultaneous light-emitting and display on the front side and the back side. , that is, to realize double-sided display; because only one display panel is used to realize double-sided display, compared with the conventional double-sided display solution in which two screens are attached, the double-sided display panel provided by the embodiment of the present disclosure provides A thin and light design is well realized, and the cost of a display screen can be reduced.
  • the driving circuit is only arranged in the first light-emitting area, that is, the orthographic projection of the driving circuit on the transparent substrate does not overlap with the second light-emitting area, so that the light-emitting area of the second light-emitting area can be increased, and the luminous efficiency of bottom emission can be improved. , thereby improving the display effect of the bottom-emission backside display.
  • the side of the transparent substrate facing the light-emitting device is used as the front side of the display panel, and the side of the transparent substrate substrate facing away from the light-emitting device is used as the backside of the display panel.
  • FIG. 2 only a partial area of the display panel is shown. And only part of the first light emitting region is shown around the part of the second light emitting region.
  • the top emission light emitting device 5 includes:
  • the first anode 10 including reflective material
  • the first light-emitting layer 11 is located on the side of the first anode 10 away from the driving circuit 7;
  • the first cathode 12, located on the side of the first light-emitting layer 11 away from the first anode 10, includes a light-transmitting material
  • the bottom emission light-emitting device 6 includes:
  • the second anode 13 includes a light-transmitting material, and is located in the same film layer as the first anode 10;
  • the second light-emitting layer 14 is located on the side of the second anode 13 away from the driving circuit 7, and is located in the same film layer as the first light-emitting layer 11;
  • the second cathode 15, comprising a light-transmitting material, is located on the side of the second light-emitting layer away from the second anode, and is disposed in the same layer as the first cathode and forms an electrode connected to the entire surface;
  • the third cathode 16, located on the side of the second cathode away from the second light-emitting layer in the second light-emitting region, includes a reflective material.
  • the first anode in the top emission light-emitting device includes a reflective material
  • the first cathode includes a light-transmitting material, so that the light-emitting device in the first region can emit light toward the front of the display panel.
  • the light-emitting device is an electroluminescent device
  • the electroluminescent device may be an organic light-emitting diode device or a quantum dot light-emitting diode device.
  • the first and second anodes 12 and 13 are integrally formed. After the light-emitting layer is formed, a cathode covering the entire surface can be formed, which serves as the first cathode for top emission in the first light-emitting region and the second cathode for bottom emission in the second light-emitting region. In some embodiments, as shown in FIG. 1 , as shown in FIG. 1 , the first and second anodes 12 and 13 are integrally formed. After the light-emitting layer is formed, a cathode covering the entire surface can be formed, which serves as the first cathode for top emission in the first light-emitting region and the second cathode for bottom emission in the second light-emitting region. In some embodiments, as shown in FIG.
  • the first light-emitting layer 11 and the second light-emitting layer 14 with the same color can be processed in the same process flow
  • the first light-emitting layer 11 and the second light-emitting layer 14 with the same emission color can be integrally connected.
  • the first light-emitting layer and the second light-emitting layer include, for example, at least one of film layers such as an electron injection layer, an electron transport layer, an organic light-emitting layer, a hole transport layer, and an electron blocking layer.
  • the material of the first anode includes an indium tin oxide (ITO)/silver (Ag)/ITO stack.
  • the material of the second anode includes: ITO.
  • the material of the first cathode and the second cathode includes: magnesium or silver.
  • the material of the third cathode includes: aluminum.
  • the display panel further includes:
  • the light-shielding layer 17 is located between the transparent substrate 1 and the film layer where the driving circuit 7 is located; the plurality of first light-emitting regions 2 are connected to each other to form a continuous region, and the light-shielding layer 17 covers the plurality of first light-emitting regions 2 connected to each other.
  • the light-shielding layer 17 also has: a first opening 18 exposing the second light-emitting region 3 , and the number of the first openings 18 is equal to the number of the second light-emitting region 3 .
  • the display panel provided by the embodiment of the present disclosure is provided with a light shielding layer to avoid mutual influence when two sides display different pictures at the same time, and can shield the driving circuit from light to improve the life of the driving circuit.
  • the orthographic projection of the first opening 18 on the transparent base substrate 1 coincides with the second light-emitting region 3 .
  • the number of top-emitting light-emitting devices 5 included in each first light-emitting region 2 is the same as the number of bottom-emitting light-emitting devices 6 included in each second light-emitting region 3 .
  • the number of top-emitting devices included in the first light-emitting region is equal to the number of bottom-emitting light-emitting devices included in the second light-emitting region, so that the resolution between the front display and the rear display of the display panel can be resolved. rate is the same.
  • the top emission light emitting device 5 included in the first light emitting region 2 has the same emission color type as the bottom emission light emitting device 6 included in the second light emitting region 3 . .
  • the light-emitting color types of the top-emitting light-emitting devices in the first light-emitting region are
  • the light-emitting color type of the bottom-emitting light-emitting device in the second light-emitting region is the same, that is, the pixel circuit arranged in the first region can drive the top-emitting light-emitting device and the bottom-emitting light-emitting device with the same light-emitting color, which can simplify the design of the driving circuit. difficulty.
  • each first light-emitting region 2 includes: a red top-emitting light-emitting device R1, a blue-light top-emitting light-emitting device B1, and a green top-emitting light-emitting device G1;
  • Each of the second light emitting regions 3 includes: a red bottom emitting light emitting device R2, a blue bottom emitting light emitting device B2, and a green bottom emitting light emitting device G2.
  • the plurality of first light-emitting regions 2 arranged in an array are divided into a plurality of first light-emitting columns 37 extending along the first direction Y and arranged along the second direction X; array arrangement The plurality of second light-emitting regions 3 are divided into a plurality of second light-emitting columns 38 extending along the first direction Y and arranged along the second direction X;
  • the top emission light-emitting devices 5 included in the first light-emitting regions 2 are of the same color type; in the even-numbered first light-emitting columns 37 , the top emission light-emitting devices included in the first light-emitting regions 2
  • the light-emitting color types of 5 are the same; 2.
  • the types of light-emitting colors of the top-emission light-emitting devices 5 included are not exactly the same;
  • the bottom-emitting light-emitting devices 6 included in the second light-emitting regions 3 have the same emission color; in the even-numbered second light-emitting columns 38 , the bottom-emitting light-emitting devices 6 included in the second light-emitting regions 3
  • the light-emitting color types of 6 are the same; 3.
  • the types of light-emitting colors of the bottom-emitting light-emitting devices 6 included are not exactly the same;
  • the light-emitting color types of the top-emitting light-emitting devices 5 included in each first light-emitting region 2 in the odd-numbered first light-emitting columns 37 and the bottom-emitting light-emitting devices 6 included in each second light-emitting region 3 in the odd-numbered second light-emitting columns 38 The light-emitting color types are the same; the light-emitting color types of the top-emission light-emitting devices 5 included in each first light-emitting area 2 in the even-numbered first light-emitting column 37 are the same as those included in each second light-emitting area 3 in the even-numbered second light-emitting column 38
  • the bottom emission light-emitting devices 6 have the same light-emitting colors.
  • the sub-pixel borrowing algorithm can be used to make a plurality of light-emitting devices included in a light-emitting area in an odd-numbered column and a light-emitting device in a light-emitting area in an adjacent even-numbered column with a different light-emitting color from the odd-numbered column to form a pixel, thereby forming a pixel.
  • the resolution of the display panel can be increased.
  • each of the first light-emitting regions 2 in the odd-numbered first light-emitting columns 37 includes: red top-emitting light-emitting devices R1 and green top-emitting light-emitting devices arranged along the second direction X device G1; each first light-emitting region 2 in the even-numbered first light-emitting columns 37 includes: blue top-emitting light-emitting devices B1 and green top-emitting light-emitting devices G1 arranged along the second direction;
  • Each second light-emitting area 3 in the odd-numbered second light-emitting columns 38 includes: red bottom-emitting light-emitting devices R2 and green bottom-emitting light-emitting devices G2 arranged along the second direction X;
  • Each of the second light emitting regions 3 includes: blue bottom emitting light emitting devices B2 and green bottom emitting light emitting devices G2 arranged along the second direction X.
  • FIG. 3 only part of the first light-emitting area and the second light-emitting area of the display panel are shown, the first and second light-emitting columns 38 on the left in FIG.
  • the first light-emitting columns 37 are odd-numbered columns.
  • the red top emitting light emitting device R1 and the green top emitting light emitting device G1 can use the adjacent blue light top emitting light emitting device B1 to form a front display pixel unit.
  • the red bottom-emitting light-emitting device R2 and the green bottom-emitting light-emitting device G2 can use the adjacent blue-light bottom-emitting light-emitting device B2 to form a pixel unit for rear display.
  • the blue top-emitting light-emitting devices B1 in the first light-emitting columns 37 of the even-numbered columns are adjacent to the green top-emitting light-emitting devices G1 in the first light-emitting columns 37 of the adjacent odd-numbered columns;
  • the blue bottom-emitting light-emitting devices B2 in the second light-emitting columns 38 of the even-numbered columns are adjacent to the green-light bottom-emitting light-emitting devices G2 in the adjacent second light-emitting columns 38 of the odd-numbered columns.
  • the type of the light emitting colors included in each column can be selected according to actual needs.
  • the odd-numbered columns may also include red light-emitting devices and blue light-emitting devices
  • the even-numbered columns include green light-emitting devices and blue light-emitting devices. device.
  • the light-emitting color types of the light-emitting devices in the odd-numbered columns and the light-emitting color types of the light-emitting devices in the even-numbered columns can also be interchanged.
  • the light-emitting area of the top-emitting light-emitting device is larger than that of the bottom-emitting light-emitting device.
  • the number of top-emitting light-emitting devices 5 included in each first light-emitting region 2 is different from the number of bottom-emitting light-emitting devices 6 included in each second light-emitting region 3 . same.
  • the display panel provided by the embodiment of the present disclosure may also be set so that the resolution of the front display is different from the resolution of the rear display.
  • the corresponding resolution can be selected according to the actual application scenarios of the front display and the rear display.
  • the number of top-emitting light-emitting devices 5 included in each first light-emitting region 2 is greater than the number of bottom-emitting light-emitting devices 6 included in each second light-emitting region 3 .
  • the area of the light-emitting region of each top-emitting light-emitting device 5 is smaller than the area of the light-emitting region of each bottom-emitting light-emitting device 6 .
  • each first light-emitting region 2 includes three top-emitting light-emitting devices 5 with different light-emitting colors;
  • Each of the second light emitting regions 3 includes a bottom emission light emitting device 6 .
  • each first light-emitting region 2 includes: a red top-emitting light-emitting device R1, a blue-light top-emitting light-emitting device B1, and a green top-emitting light-emitting device G1;
  • the plurality of second light-emitting regions 3 arranged in the array are divided into a plurality of second light-emitting groups 39 arranged along the second direction X;
  • Each second light-emitting group 39 includes: a red second light-emitting column 40, a blue second light-emitting column 41 and a green second light-emitting column 42 extending along the first direction Y and sequentially arranged along the second direction X;
  • Each second light-emitting region 3 in the red second light-emitting column 40 includes: a red bottom-emitting light-emitting device R1;
  • Each second light emitting area 3 in the blue second light emitting column 41 includes: a blue bottom emission light emitting device B1;
  • Each second light-emitting region 3 in the green second light-emitting column 42 includes: a green bottom-emitting light-emitting device G1.
  • the light-emitting devices included in the second light-emitting area of each column have the same light-emitting color, so that the design difficulty of the driving circuit can be simplified.
  • the ratio of the resolution of the front display to the resolution of the rear display is 3:1.
  • each first light-emitting region 1 includes: a red top-emitting light-emitting device R1, a blue-light top-emitting light-emitting device B1, and a green top-emitting light-emitting device G1;
  • the plurality of second light-emitting regions 3 arranged in the array are divided into a plurality of pixel groups 43, and each pixel group 43 includes four second light-emitting regions 3 of two rows by two columns;
  • Each pixel group 43 includes at least a red bottom-emitting light-emitting device R2, a blue-light bottom-emitting light-emitting device B2, and a green top-emitting light-emitting device G2.
  • a pixel group is used as a pixel unit for the back display.
  • the two light-emitting devices in the first column are red bottom-emitting light-emitting devices R2 and green top-emitting light-emitting devices G2, and the two light-emitting devices in the second column are The light emitting devices are all blue bottom emission light emitting devices B2.
  • the number of blue bottom-emitting light-emitting devices in each pixel group is larger than the number of the other two light-emitting devices, so that the blue light-emitting efficiency can be improved, and the brightness attenuation of the blue-light bottom-emitting light-emitting device can be avoided compared with the other two light-emitting devices. Display unevenness caused by mismatched brightness attenuation of light-emitting devices.
  • the ratio of the resolution of the front display to the resolution of the rear display is 2:1.
  • a blue bottom emitting light emitting device B2 in a pixel group 43 in FIG. 5 can also be replaced with a red bottom emitting light emitting device R2 or a green top emitting light emitting device G2.
  • the number and arrangement position of the red bottom emitting light emitting device R2, the green top emitting light emitting device G2, and the blue bottom emitting light emitting device B2 can be selected according to actual needs.
  • the top emission light emitting device and the bottom emission light emitting device may be driven separately using different circuits.
  • each first light-emitting region includes m top-emitting light-emitting devices, and each second light-emitting region includes n bottom-emitting light-emitting devices, wherein m and n are both positive integers;
  • a pixel circuit 8 corresponding to the first light-emitting area includes:
  • each first pixel circuit 25 is electrically connected to one top emission light-emitting device 5;
  • each second pixel circuit 26 is electrically connected to one bottom emission light-emitting device 6;
  • the plurality of signal lines 44 include:
  • the first pixel circuit 25 and the second pixel circuit 26 in the same pixel circuit 8 are arranged along the second direction X, and the first pixel circuit 25 and the second pixel circuit 26 in the same pixel circuit 8 share the gate driving signal line 45.
  • the first pixel circuit and the second pixel circuit located in the same pixel circuit share the gate driving signal line, thereby reducing the number of signal lines in the driving circuit, saving wiring space, and increasing the The light-emitting area of the second light-emitting region improves the light-emitting efficiency of the display on the back of the display panel, and improves the display effect on the back of the display panel.
  • FIG. 6 is, for example, the pixel circuit corresponding to the display panel shown in FIG. 2
  • FIG. 7 is, for example, the pixel circuit corresponding to the display panel shown in FIG. 3
  • FIG. 8 is, for example, the display shown in FIG. 4 .
  • the pixel circuit 8 corresponding to each first light-emitting area 2 includes three first pixel circuits 25 and three second pixel circuits 26 ; three first pixel circuits 25 and three second pixel circuits 26 are arranged along the first direction X, and the three first pixel circuits 25 respectively drive the red top-emitting light-emitting device, the blue-light top-emitting light-emitting device, and the green top-emitting light-emitting device in the first light-emitting area 2 to emit light, and the three second pixel circuits 25 emit light respectively.
  • the pixel circuit 2 respectively drives the red bottom emitting light emitting device, the blue bottom emitting light emitting device and the green bottom emitting light emitting device in a second light emitting region 3 adjacent to the first light emitting region 2 to emit light.
  • the pixel circuit 8 corresponding to each first light-emitting area 2 includes two first pixel circuits 25 and two second pixel circuits 26 ; two first pixel circuits 25 and two second pixel circuits 26 are arranged along the first direction X.
  • each pixel circuit of an even-numbered column two first pixel circuits 25 respectively drive the red top-emitting light-emitting device and the green top-emitting light-emitting device in one first light-emitting area 2 to emit light, and two second pixel circuits 25 respectively drive
  • the pixel circuit 2 respectively drives the red bottom-emitting light-emitting device and the green bottom-emitting light-emitting device in a second light-emitting region 3 adjacent to the first light-emitting region 2 to emit light;
  • a pixel circuit 25 respectively drives a blue top-emitting light-emitting device and a green top-emitting light-emitting device in one first light-emitting area 2 to emit light, and two second pixel circuits 2 respectively drive a second light-emitting device adjacent to the first light-emitting area 2
  • the blue top-emitting light-emitting devices and the green top-emitting light-emitting devices in the light-emitting region 3 emit
  • the pixel circuit 8 corresponding to each first light-emitting area 2 includes three first pixel circuits 25 and one second pixel circuit 26 ; three first pixel circuits 25 and three second pixel circuits 26 are arranged along the first direction X, and three first pixel circuits 25 respectively drive a red top-emitting light-emitting device, a blue-light top-emitting light-emitting device, and a green top-emitting light-emitting device in the first light-emitting area 2 to emit light;
  • the pixel circuit 2 drives a bottom-emitting light-emitting device in a second light-emitting region 3 adjacent to the first light-emitting region 2 to emit light; when a second light-emitting region adjacent to the first light-emitting region includes a red bottom-emitting light-emitting device , then one second pixel circuit 2 drives the red bottom-emitting light-emitting device to emit light; when a second light-emitting region
  • the gate driving signal lines include, for example, scanning signal lines and light-emitting control signal lines.
  • the signal line further includes a plurality of data signal lines 46 extending along the first direction Y.
  • the data signal lines 46 supply data signals to the pixel circuits 8 .
  • the plurality of first light-emitting regions 2 arranged in an array are divided into a plurality of first light-emitting regions 2 extending along the second direction X and arranged along the first direction Y
  • a pixel circuit 8 corresponding to the first light-emitting area 2 includes:
  • One pixel circuit 8 corresponding to each first light-emitting area 2 in the odd-numbered first light-emitting row 48 further includes:
  • One pixel circuit 8 corresponding to each first light-emitting area 2 in the even-numbered first light-emitting row 48 further includes:
  • the two second pixel circuits 26 are respectively electrically connected to the two bottom emission light emitting devices adjacent to each other in the second direction X; the circuit compositions of the dummy pixel circuits 47 and the second pixel circuits 26 are the same.
  • the plurality of signal lines include:
  • the first pixel circuit 25 and the dummy pixel circuit 47 are arranged along the second direction X; the first light-emitting row 48 of even-numbered rows In one pixel circuit 8 corresponding to each of the first light-emitting regions 2, the first pixel circuit 25 and the second pixel circuit 26 are arranged along the second direction X, and the first pixel circuit 25 and the second pixel circuit 26 share a gate The driving signal line 45 .
  • the two pixel circuits when the pixel circuit includes two second pixel circuits, the two pixel circuits respectively drive two bottom-emitting light-emitting devices located in the same column in a pixel group. In this way, the four second pixel circuits driving one pixel group are located in the same row, and can share the gate driving signal line.
  • each pixel circuit in the first light-emitting row of even-numbered rows may also include a dummy pixel circuit, and each pixel circuit in the first light-emitting row of odd-numbered rows may include a second pixel circuit.
  • the circuit compositions of the first pixel circuit 25 and the second pixel circuit 26 are the same.
  • the first pixel circuit and the second pixel circuit include thin film transistors and capacitors.
  • a buffer layer 19 is further included between the light shielding layer 17 and the film layer where the driving circuit is located.
  • the film layer where the driving circuit is located specifically includes: an active layer, a first gate insulating layer 20, a first gate metal layer, a second gate insulating layer 21, a second gate metal layer, an interlayer insulating layer 22, and a source-drain electrode layer , the planarization layer 23 .
  • the active layer includes: the active layer 27 of the thin film transistor in the first pixel circuit 25 , and the active layer 32 of the thin film transistor in the second pixel circuit 26 .
  • the first gate metal layer includes: the gate electrode 28 of the thin film transistor in the first pixel circuit 25 and the gate electrode 33 of the thin film transistor in the second pixel circuit 26 .
  • the second gate metal layer includes: the capacitor electrode 29 of the thin film transistor in the first pixel circuit 25 , and the capacitor electrode 34 of the thin film transistor in the second pixel circuit 26 .
  • the source and drain metal layers include: the source electrode 30 and the drain electrode 31 of the thin film transistor in the first pixel circuit 25 , and the source electrode 35 and the drain electrode 36 of the thin film transistor in the second pixel circuit 26 .
  • the first anode 10 is electrically connected to the drain electrode 31 of the thin film transistor in the first pixel circuit 25 through the via hole of the planarization layer 23 .
  • the second anode 10 is electrically connected to the drain electrode 36 of the thin film transistor in the second pixel circuit 26 through the via hole of the planarization layer 23 .
  • the display panel further includes a pixel definition layer 24 .
  • the third cathode faces away from the side of the second cathode, and the display panel further includes an encapsulation layer.
  • the top emission light emitting device and the bottom emission light emitting device may share a part of the circuit.
  • each first light-emitting region includes m top-emitting light-emitting devices, and each second light-emitting region includes m bottom-emitting light-emitting devices, wherein m is a positive integer;
  • each pixel circuit includes:
  • m fourth pixel circuits each of which includes: a first sub-pixel circuit 50 and a second sub-pixel circuit 51 electrically connected to the third pixel circuit 49; the first sub-pixel circuit 50 is also connected to a top emission light-emitting device 5 is electrically connected, and the second sub-pixel circuit 51 is also electrically connected to the bottom-emitting light-emitting device 6; the first sub-pixel circuit 50 and the second sub-pixel circuit 51 that are electrically connected to the same third pixel circuit 49 are electrically connected to the light-emitting device 6.
  • the glow color is the same.
  • the top emission light emitting device and the bottom emission light emitting device share a third pixel circuit
  • the top emission light emitting device is controlled to emit light by the first sub-pixel circuit and the third pixel circuit
  • the second sub pixel circuit and the third pixel circuit are used to control the top emission light emitting device to emit light.
  • the three-pixel circuit can reduce the number of pixel circuits set in the first light-emitting area and reduce part of the signal lines compared to the case where the first pixel circuit and the second pixel circuit respectively control the top-emitting light-emitting device to emit light and the bottom-emitting light-emitting device to emit light. Therefore, the wiring space of some signal lines can be reduced, the light emitting area of the second light emitting region can be increased, and the aperture ratio of the bottom emission pixel can be improved.
  • the third pixel circuit 49 includes: a driving transistor DTFT;
  • the signal lines include: a first light-emitting control signal line EM1 and a second light-emitting control signal line EM2;
  • the first sub-pixel circuit 50 includes: a first transistor TFT1, the source of the first transistor TFT1 is electrically connected to the drain of the driving transistor DTFT, the gate of the first transistor TFT1 is electrically connected to the first light emission control signal line EM1, the first The drain of the transistor TFT1 is electrically connected to the top emission light-emitting device 5;
  • the second sub-pixel circuit 51 includes: a second transistor TFT2, the source of the second transistor TFT is electrically connected to the drain of the driving transistor DTFT, the gate of the second transistor TFT is electrically connected to the second light-emitting control signal line EM2, and the second transistor TFT is electrically connected to the drain of the driving transistor DTFT.
  • the drain of the transistor TFT is electrically connected to the bottom emission light emitting device 6 .
  • the display panel provided by the embodiment of the present disclosure, for a pair of driving circuits of a top emission light emitting device and a bottom emission light emitting device, only two transistors and their light emission control signal lines are added between the third pixel circuit and the light emitting device, so that one The number of driving circuits in the first light-emitting area is greatly reduced, which effectively saves the area occupied by the driving circuits, thereby increasing the area of the second light-emitting area, and increasing the bottom emission aperture ratio can also improve the PPI of the backside display.
  • only the light-emitting device in the first light-emitting region can emit light by controlling the first transistor to be turned on and the second transistor to be turned off; or by controlling the first transistor to be turned off and the second transistor to be turned on, only the light-emitting device of the second light-emitting region can be controlled glow.
  • the first pixel circuit, the second pixel circuit and the third pixel circuit usually need to be provided with multiple transistors and capacitors.
  • the composition of the third pixel circuit may be the same as the composition of the first pixel circuit and the composition of the second pixel circuit.
  • a display device provided by an embodiment of the present disclosure includes the display panel provided by an embodiment of the present disclosure.
  • the display device is any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, and a navigator.
  • a display function such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, and a navigator.
  • Other essential components of the display device should be understood by those of ordinary skill in the art, and will not be repeated here, nor should it be regarded as a limitation of the present disclosure.
  • a top-emitting light-emitting device with front-side emission and a bottom-emitting light-emitting device with backside emission are simultaneously formed on a transparent substrate, so that the display panel can
  • the realization of the simultaneous light emission and display of the front and the back that is, the realization of double-sided screen display; because only one display panel is used to realize double-sided screen display, compared with the conventional double-sided screen display scheme in which two screens are laminated, the present disclosure
  • the double-sided display panel provided by the embodiment well realizes a thin and light design, and can reduce the cost of a display screen.
  • the driving circuit is only arranged in the first light-emitting area, that is, the orthographic projection of the driving circuit on the transparent substrate does not overlap with the second light-emitting area, so that the light-emitting area of the second light-emitting area can be increased, and the luminous efficiency of bottom emission can be improved. , thereby improving the display effect of the bottom-emission backside display.

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Abstract

本公开提供了一种显示面板及显示装置，用以实现双面显示。本公开实施例提供的一种显示面板，包括：透明衬底基板，包括显示区；显示区包括：多个沿第一方向和第二方向阵列排布的第一发光区，以及多个沿第一方向和第二方向阵列排布的第二发光区；第一发光区和第二发光区沿第三方向交替排布；第一方向和第二方向交叉，第三方向与第一方向和第二方向均交叉；发光器件，位于透明衬底基板的一侧，包括：位于第一发光区的顶发射发光器件，以及位于第二发光区的底发射发光器件；驱动电路，在第一发光区位于发光器件所在膜层和透明衬底基板之间，与发光器件电连接；包括：与第一发光区数量相同的多个像素电路，以及与像素电路电连接的多条信号线。

Description

显示面板及显示装置
相关申请的交叉引用
本申请要求在2021年03月29日提交中国专利局、申请号为202110334647.8、申请名称为“显示面板及显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及显示技术领域，尤其涉及一种显示面板及显示装置。
背景技术
目前，随着信息传输的进步与电子产品的演进，除了在有机发光显示装置的反应速度、分辨率与画质各方面不断研发改良，更追求功能或显示模式上的突破。因此，双面显示也是未来显示装置发展的一个重要方向，双面显示可以延伸画面空间，让视野更加宽阔，也可快速切换以及处理更多的工作，在广告展示、视频会议等领域具有巨大的潜在应用价值。现有的双面显示技术，实际上就是双屏显示，即采用两块屏幕进行双面显示，厚度大、重量大，成本也非常高，无法满足人们对于双面屏显示的需求。
发明内容
本公开实施例提供了一种显示面板及显示装置，用以实现双面显示。
本公开实施例提供的一种显示面板，显示面板包括：
透明衬底基板，包括显示区；显示区包括：多个沿第一方向和第二方向阵列排布的第一发光区，以及多个沿第一方向和第二方向阵列排布的第二发光区；第一发光区和第二发光区沿第三方向交替排布；第一方向和第二方向交叉，第三方向与第一方向和第二方向均交叉；
发光器件，位于透明衬底基板的一侧，包括：位于第一发光区的顶发射 发光器件，以及位于第二发光区的底发射发光器件；
驱动电路，在第一发光区位于发光器件所在膜层和透明衬底基板之间，与发光器件电连接；包括：与第一发光区数量相同的多个像素电路，以及与像素电路电连接的多条信号线。
在一些实施例中，顶发射发光器件包括：
第一阳极；包括反光材料；
第一发光层，位于第一阳极背离驱动电路一侧；
第一阴极，位于第一发光层背离第一阳极一侧，包括透光材料；
底发射发光器件包括：
第二阳极；包括透光材料，与第一阳极位于同一膜层；
第二发光层，位于第二阳极背离驱动电路的一侧，与第一发光层位于同一膜层；
第二阴极，包括透光材料，位于第二发光层背离第二阳极一侧，与第一阴极同层设置且形成整面连接的电极；
第三阴极，在第二发光区位于第二阴极背离第二发光层一侧，包括反光材料。
在一些实施例中，显示面板还包括：
遮光层，位于透明衬底基板和驱动电路所在膜层之间；多个第一发光区相互连接，且遮光层覆盖多个第一发光区相互连接形成的区域；遮光层还具有：露出第二发光区的第一开口，第一开口的数量等于第二发光区的数量。
在一些实施例中，每一第一发光区包括的顶发射发光器件的数量，与每一第二发光区包括的底发射发光器件的数量相同。
在一些实施例中，第一发光区包括的顶发射发光器件的发光颜色种类，与第二发光区包括的底发射发光器件的发光颜色种类相同。
在一些实施例中，每一第一发光区包括：红光顶发射发光器件，蓝光顶发射发光器件，以及绿光顶发射发光器件；
每一第二发光区包括：红光底发射发光器件，蓝光底发射发光器件，以 及绿光底发射发光器件。
在一些实施例中，阵列排布的第一发光区划分为多个沿第一方向延伸、沿第二方向排列的第一发光列；阵列排布的多个第二发光区划分为多个沿第一方向延伸、沿第二方向排列的第二发光列；
奇数列第一发光列中，各第一发光区包括的顶发射发光器件的发光颜色种类均相同；偶数列第一发光列中，各第一发光区包括的顶发射发光器件的发光颜色种类均相同；奇数列第一发光列中每一第一发光区包括的顶发射发光器件的发光颜色种类，与偶数列第一发光列中每一第一发光区包括的顶发射发光器件的发光颜色种类不完全相同；
奇数列第二发光列中，各第二发光区包括的底发射发光器件的发光颜色种类均相同；偶数列第二发光列中，各第二发光区包括的底发射发光器件的发光颜色种类均相同；奇数列第二发光列中每一第二发光区包括的底发射发光器件的发光颜色种类，与偶数列第二发光列中每一第二发光区包括的底发射发光器件的发光颜色种类不完全相同；
奇数列第一发光列中每一第一发光区包括的顶发射发光器件的发光颜色种类，与奇数列第二发光列中每一第二发光区包括的底发射发光器件的发光颜色种类相同；偶数列第一发光列中每一第一发光区包括的顶发射发光器件的发光颜色种类，与偶数列第二发光列中每一第二发光区包括的底发射发光器件的发光颜色种类相同。
在一些实施例中，奇数列第一发光列中的每一第一发光区包括：沿第二方向排列的红光顶发射发光器件和绿光顶发射发光器件；偶数列第一发光列中的每一第一发光区包括：沿第二方向排列的蓝光顶发射发光器件和绿光顶发射发光器件；
奇数列第二发光列中的每一第二发光区包括：沿第二方向排列的红光底发射发光器件和绿光底发射发光器件；偶数列第二发光列中的每一第二发光区包括：沿第二方向排列的蓝光底发射发光器件和绿光底发射发光器件。
在一些实施例中，每一第一发光区包括的顶发射发光器件的数量，与每 一第二发光区包括的底发射发光器件的数量不相同。
在一些实施例中，每一第一发光区包括三个发光颜色不同的顶发射发光器件；
每一第二发光区包括一个底发射发光器件。
在一些实施例中，每一第一发光区包括：红光顶发射发光器件，蓝光顶发射发光器件，以及绿光顶发射发光器件；
阵列排布的多个第二发光区划分为多个沿第二方向排列的第二发光组；
每一第二发光组包括：沿第一方向延伸、沿第二方向依次排列的红色第二发光列，蓝色第二发光列以及绿色第二发光列；
红色第二发光列中的每一第二发光区包括：红光底发射发光器件；
蓝色第二发光列中的每一第二发光区包括：蓝光底发射发光器件；
绿色第二发光列中的每一第二发光区包括：绿光底发射发光器件。
在一些实施例中，每一第一发光区包括：红光顶发射发光器件，蓝光顶发射发光器件，以及绿光顶发射发光器件；
阵列排布的多个第二发光区划分为多个像素组，每一像素组包括两行乘两列的四个第二发光区；
每一像素组中至少包括红光底发射发光器件，蓝光底发射发光器件，以及绿光顶发射发光器件。
在一些实施例中，每一第一发光区包括m个顶发射发光器件，每一第二发光区包括n个底发射发光器件，其中，m，n均为正整数；
与第一发光区对应的一个像素电路包括：
m个第一像素电路，每一第一像素电路与一个顶发射发光器件电连接；
n个第二像素电路，每一第二像素电路与一个底发射发光器件电连接；
在一些实施例中，多条信号线包括：
多条栅极驱动信号线，沿第二方向延伸；
其中，同一像素电路中的第一像素电路和第二像素电路沿第二方向排列，且同一像素电路中的第一像素电路和第二像素电路共用栅极驱动信号线。
在一些实施例中，阵列排布的多个第一发光区划分为多个沿第二方向延伸、沿第一方向排列的第一发光行；
与第一发光区对应的一个像素电路包括：
三个第一像素电路，每一第一像素电路与一个顶发射发光器件电连接；
奇数行第一发光行中的每一第一发光区对应的一个像素电路还包括：
两个虚设像素电路；
偶数行第一发光行中的每一第一发光区对应的一个像素电路还包括：
两个第二像素电路，分别与在第二方向上相邻的两个底发射发光器件电连接；虚设像素电路和第二像素电路的电路组成相同。
在一些实施例中，多条信号线包括：
多条栅极驱动信号线，沿第二方向延伸；
其中，奇数行第一发光行中的每一第一发光区对应的一个像素电路中，第一像素电路和虚设像素电路沿第二方向排列；偶数行第一发光行中的每一第一发光区对应的一个像素电路中，第一像素电路和第二像素电路沿第二方向排列，且第一像素电路和第二像素电路共用栅极驱动信号线。
在一些实施例中，第一像素电路和第二像素电路的电路组成相同。
在一些实施例中，每一第一发光区包括m个顶发射发光器件，每一第二发光区包括m个底发射发光器件，其中，m为正整数；
每一像素电路包括：
m个第三像素电路；
m个第四像素电路，每一第四像素电路包括：与第三像素电路电连接的第一子像素电路和第二子像素电路；第一子像素电路还与顶发射发光器件电连接，第二子像素电路还与底发射发光器件电连接；与同一第三像素电路电连接的第一子像素电路和第二子像素电路，电连接的发光器件的发光颜色相同。
在一些实施例中，第三像素电路包括：驱动晶体管；
信号线包括：第一发光控制信号线和第二发光控制信号线；
第一子像素电路包括：第一晶体管，第一晶体管的源极与驱动晶体管的漏极电连接，第一晶体管的栅极与第一发光控制信号线电连接，第一晶体管的漏极与顶发射发光器件电连接；
第二子像素电路包括：第二晶体管，第二晶体管的源极与驱动晶体管的漏极电连接，第二晶体管的栅极与第二发光控制信号线电连接，第二晶体管的漏极与底发射发光器件电连接。
本公开实施例提供的一种显示装置，显示装置包括本公开实施例提供的显示面板。
附图说明
为了更清楚地说明本公开实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简要介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域的普通技术人员来讲，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为本公开实施例提供的一种显示面板的结构示意图；
图2为本公开实施例提供的另一种显示面板的结构示意图；
图3为本公开实施例提供的又一种显示面板的结构示意图；
图4为本公开实施例提供的又一种显示面板的结构示意图；
图5为本公开实施例提供的又一种显示面板的结构示意图；
图6为本公开实施例提供的又一种显示面板的结构示意图；
图7为本公开实施例提供的又一种显示面板的结构示意图；
图8为本公开实施例提供的又一种显示面板的结构示意图；
图9为本公开实施例提供的又一种显示面板的结构示意图；
图10为本公开实施例提供的又一种显示面板的结构示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公 开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。并且在不冲突的情况下，本公开中的实施例及实施例中的特征可以相互组合。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。
需要注意的是，附图中各图形的尺寸和形状不反映真实比例，目的只是示意说明本公开内容。并且自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。
本公开实施例提供了种显示面板，如图1、图2所示，显示面板包括：
透明衬底基板1，包括显示区；显示区包括：多个沿第一方向Y和第二方向X阵列排布的第一发光区2，以及多个沿第一方向Y和第二方向X阵列排布的第二发光区3；第一发光区2和第二发光区3沿第三方向Z交替排布；第一方向Y和第二方向X交叉，第三方向Z与第一方向Y和第二方向X均交叉；
发光器件4，位于透明衬底基板1的一侧，包括：位于第一发光区2的顶发射发光器件5，以及位于第二发光区3的底发射发光器件6；
驱动电路7，在第一发光区2位于发光器件4所在膜层和透明衬底基板1之间，与发光器件4电连接；包括：与第一发光区2数量相同且对应的多个像素电路8，以及与像素电路7电连接的多条信号线9。
本公开实施例提供的显示面板，在一块透明衬底基板上，同时形成了正 面发光的顶发射发光器件和反面发光的底发射发光器件，从而，使显示面板能够实现正面及反面同时发光及显示，即实现双面屏显示；由于仅采用了一块显示面板即实现了双面屏显示，相比于常规的两块屏幕贴合的双面屏显示方案，本公开实施例提供的双面显示面板很好的实现了轻薄化设计，并可以减少一块显示屏的成本。并且，驱动电路仅设置在第一发光区，即驱动电路在透明衬底基板的正投影与第二发光区互不交叠，从而可以提高第二发光区的发光面积，提高底发射的发光效率，进而提高底发射背面显示的显示效果。
需要说明的是，本公开实施例以透明衬底基板朝向发光器件一侧作为显示面板的正面，透明衬底基板背离发光器件一侧作为显示面板的背面。
需要说明的是，图2中，仅示出显示面板的部分区域。且部分第二发光区周围仅示出部分第一发光区。
在一些实施例中，如图1所示，顶发射发光器件5包括：
第一阳极10；包括反光材料；
第一发光层11，位于第一阳极10背离驱动电路7一侧；
第一阴极12，位于第一发光层11背离第一阳极10一侧，包括透光材料；
底发射发光器件6包括：
第二阳极13；包括透光材料，与第一阳极10位于同一膜层；
第二发光层14，位于第二阳极13背离驱动电路7的一侧，与第一发光层11位于同一膜层；
第二阴极15，包括透光材料，位于第二发光层背离第二阳极一侧，与第一阴极同层设置且形成整面连接的电极；
第三阴极16，在第二发光区位于第二阴极背离第二发光层一侧，包括反光材料。
本公开实施例提供的显示面板，顶发射发光器件中的第一阳极包括反光材料，第一阴极包括透光材料，从而可以实现在第一区发光器件朝向显示面板的正面发光。
需要说明的是，本公开实施例提供的显示面板，发光器件为电致发光器 件，在具体实施时，电致发光器件可以是有机发光二极管器件，也可以是量子点发光二极管器件。
需要说明的是，在一些实施例中，如图1所示，第一以及12与第二阳极13为一体结构。在形成发光层之后，可以形成整面覆盖的阴极，在第一发光区作为顶发射的第一阴极，在第二发光区作为底发射的第二阴极。在一些实施例中，如图1所示，当顶发射发光器件5与底发射发光器件6发光颜色相同时，发光颜色相同的第一发光层11和第二发光层14可以在同一道工艺流程中形成，即发光颜色相同的第一发光层11和第二发光层14可以一体连接。
在具体实施时，第一发光层、第二发光层例如包括：电子注入层、电子传输层、有机发光层、空穴传输层、电子阻挡层等膜层中的至少一种。
在一些实施例中，第一阳极的材料包括：氧化铟锡(ITO)/银(Ag)/ITO叠层。
在一些实施例中，第二阳极的材料包括：ITO。
在一些实施例中，第一阴极和第二阴极的材料包括：镁或银。
在一些实施例中，第三阴极的材料包括：铝。
在一些实施例中，如图1、图2所示，显示面板还包括：
遮光层17，位于透明衬底基板1和驱动电路7所在膜层之间；多个第一发光区2相互连接，形成连续区域，且遮光层17覆盖多个第一发光区2相互连接形成的区域；遮光层17还具有：露出第二发光区3的第一开口18，第一开口18的数量等于第二发光区3的数量。
本公开实施例提供的显示面板，设置遮光层从而可以避免当两侧同时显示不同画面时彼此的影响，且可以起到为驱动电路遮光从而提高驱动电路寿命的作用。
在一些实施例中如图1、图2所示，第一开口18在透明衬底基板1的正投影与第二发光区3重合。
在一些实施例中，如图2、图3所示，每一第一发光区2包括的顶发射发 光器件5的数量，与每一第二发光区3包括的底发射发光器件6的数量相同。
本公开实施例提供的显示面板，第一发光区包括的顶发射器件的数量与第二发光区包括的底发射发光器件的数量相等，从而可以实现显示面板正面显示的分辨率与背面显示的分辨率相同。
在一些实施例中，如图2、图3所示，第一发光区2包括的顶发射发光器件5的发光颜色种类，与第二发光区3包括的底发射发光器件6的发光颜色种类相同。
本公开实施例提供的显示面板，当第一发光区的顶发射器件的数量与第二发光区的底发射发光器件的数量相等的同时，第一发光区的顶发射发光器件的发光颜色种类，与第二发光区的底发射发光器件的发光颜色种类相同，即设置在第一区的像素电路可以对发光颜色相同的第顶发射发光器件和底发射发光器件进行驱动，可以简化驱动电路的设计难度。
在一些实施例中，如图2所示，每一第一发光区2包括：红光顶发射发光器件R1，蓝光顶发射发光器件B1，以及绿光顶发射发光器件G1；
每一第二发光区3包括：红光底发射发光器件R2，蓝光底发射发光器件B2，以及绿光底发射发光器件G2。
在一些实施例中，如图3所示，阵列排布的多个第一发光区2划分为多个沿第一方向Y延伸、沿第二方向X排列的第一发光列37；阵列排布的多个第二发光区3划分为多个沿第一方向Y延伸、沿第二方向X排列的第二发光列38；
奇数列第一发光列37中，各第一发光区2包括的顶发射发光器件5的发光颜色种类均相同；偶数列第一发光列37中，各第一发光区2包括的顶发射发光器件5的发光颜色种类均相同；奇数列第一发光列37中每一第一发光区2包括的顶发射发光器件5的发光颜色种类，与偶数列第一发光列37中每一第一发光区2包括的顶发射发光器件5的发光颜色种类不完全相同；
奇数列第二发光列38中，各第二发光区3包括的底发射发光器件6的发光颜色种类均相同；偶数列第二发光列38中，各第二发光区3包括的底发射 发光器件6的发光颜色种类均相同；奇数列第二发光列38中每一第二发光区3包括的底发射发光器件6的发光颜色种类，与偶数列第二发光列38中每一第二发光区3包括的底发射发光器件6的发光颜色种类不完全相同；
奇数列第一发光列37中每一第一发光区2包括的顶发射发光器件5的发光颜色种类，与奇数列第二发光列38中每一第二发光区3包括的底发射发光器件6的发光颜色种类相同；偶数列第一发光列37中每一第一发光区2包括的顶发射发光器件5的发光颜色种类，与偶数列第二发光列38中每一第二发光区3包括的底发射发光器件6的发光颜色种类相同。
这样，可以通过子像素借用算法，使得奇数列的一个发光区中包括的多个发光器件，与相邻的偶数列的一个发光区中与奇数列发光颜色不同的发光器件，组成一个像素，从而可以提高显示面板的分辨率。
在一些实施例中，如图3所示，奇数列第一发光列37中的每一第一发光区2包括：沿第二方向X排列的红光顶发射发光器件R1和绿光顶发射发光器件G1；偶数列第一发光列37中的每一第一发光区2包括：沿第二方向排列的蓝光顶发射发光器件B1和绿光顶发射发光器件G1；
奇数列第二发光列38中的每一第二发光区3包括：沿第二方向X排列的红光底发射发光器件R2和绿光底发射发光器件G2；偶数列第二发光列38中的每一第二发光区3包括：沿第二方向X排列的蓝光底发射发光器件B2和绿光底发射发光器件G2。
需要说明的是，图3中，仅示出显示面板的部分第一发光区和第二发光区，图3中左边的第一个第二发光列38为偶数列，图3中左边的第一个第一发光列37为奇数列。
本公开实施例提供的如图3所示的显示面板，红光顶发射发光器件R1和绿光顶发射发光器件G1可以借用相邻的蓝光顶发射发光器件B1，组成一个正面显示的像素单元。红光底发射发光器件R2和绿光底发射发光器件G2可以借用相邻的蓝光底发射发光器件B2，组成一个背面显示的像素单元。
在一些实施例中，如图3所示，偶数列第一发光列37中的蓝光顶发射发 光器件B1和相邻的奇数列第一发光列37中的绿光顶发射发光器件G1相邻；偶数列第二发光列38中的蓝光底发射发光器件B2和相邻的奇数列第二发光列38中的绿光底发射发光器件G2相邻。
在具体实施时，当奇数列和偶数列发光区包括的发光器件发光颜色不完全相同时，可以根据实际需要选择每一列中包括的发光颜色的类型。在具体实施时，当每一第一发光区、第二发光区均包括两个发光器件时，也可以是奇数列包括红色发光器件和蓝色发光器件，偶数列包括绿色发光器件和蓝色发光器件。当然，在具体实施时，对于同一种发光区，奇数列中的发光器件发光颜色类型和偶数列中的发光器件发光颜色类型也可以互换。
在一些实施例中，如图2、图3所示，顶发射发光器件的发光面积大于底发射发光器件的发光面积。
在一些实施例中，如图4、图5所示，每一第一发光区2包括的顶发射发光器件5的数量，与每一第二发光区3包括的底发射发光器件6的数量不相同。
即本公开实施例提供的显示面板，也可以设置为正面显示的分辨率与背面显示的分辨率不相同。
在具体实施时，可以根据正面显示和背面显示的实际应用场景，选择相应的分辨率。
在一些实施例中，如图4、图5所示，每一第一发光区2包括的顶发射发光器件5的数量，大于每一第二发光区3包括的底发射发光器件6的数量。
在一些实施例中，如图4、图5所示，每一顶发射发光器件5的发光区面积小于每一底发射发光器件6发光区面积。
在一些实施例中，如图4、图5所示，每一第一发光区2包括三个发光颜色不同的顶发射发光器件5；
每一第二发光区3包括一个底发射发光器件6。
在一些实施例中，如图4所示，每一第一发光区2包括：红光顶发射发光器件R1，蓝光顶发射发光器件B1，以及绿光顶发射发光器件G1；
阵列排布的多个第二发光区3划分为多个沿第二方向X排列的第二发光组39；
每一第二发光组39包括：沿第一方向Y延伸、沿第二方向X依次排列的红色第二发光列40，蓝色第二发光列41以及绿色第二发光列42；
红色第二发光列40中的每一第二发光区3包括：红光底发射发光器件R1；
蓝色第二发光列41中的每一第二发光区3包括：蓝光底发射发光器件B1；
绿色第二发光列42中的每一第二发光区3包括：绿光底发射发光器件G1。
本公开实施例提供的如图4所示的显示面板，每一列第二发光区中包括的发光器件的发光颜色均相同，从而可以简化驱动电路的设计难度。
本公开实施例提供的如图4所示的显示面板，正面显示的分辨率与背面显示的分辨率之比为3：1。
在一些实施例中，如图5所示，每一第一发光区1包括：红光顶发射发光器件R1，蓝光顶发射发光器件B1，以及绿光顶发射发光器件G1；
阵列排布的多个第二发光区3划分为多个像素组43，每一像素组43包括两行乘两列的四个第二发光区3；
每一像素组43中至少包括红光底发射发光器件R2，蓝光底发射发光器件B2，以及绿光顶发射发光器件G2。
即一个像素组作为背面显示的一个像素单元。
在一些实施例中，如图5所示，每一像素组43中，第一列中的两个发光器件为红光底发射发光器件R2和绿光顶发射发光器件G2，第二列中的发光器件均为蓝光底发射发光器件B2。
本公开实施例提供的显示面板，每一像素组中蓝光底发射发光器件的数量比其余两种发光器件的数量多，从而可以提高蓝光发光效率，避免蓝光底发射发光器件亮度衰减与其余两种发光器件亮度衰减不匹配造成的显示不均。
本公开实施例提供的如图5所示的显示面板，正面显示的分辨率与背面显示的分辨率之比为2：1。
当然，在具体实施时，也可以将图5中一个像素组43中的一个蓝光底发射发光器件B2替换为红光底发射发光器件R2或绿光顶发射发光器件G2。
在具体实施时，每一像素组中，红光底发射发光器件R2、绿光顶发射发光器件G2、以及蓝光底发射发光器件B2的数量和设置位置可以根据实际需要进行选择。
在一些实施例中，顶发射发光器件和底发射发光器件可以利用不同的电路分别驱动。
在一些实施例中，每一第一发光区包括m个顶发射发光器件，每一第二发光区包括n个底发射发光器件，其中，m，n均为正整数；
如图1、图6、图7、图8所示，与第一发光区对应的一个像素电路8包括：
m个第一像素电路25，每一第一像素电路25与一个顶发射发光器件5电连接；
n个第二像素电路26，每一第二像素电路26与一个底发射发光器件6电连接；
在一些实施例中，多条信号线44包括：
多条栅极驱动信号线45，沿第二方向X延伸；
其中，同一像素电路8中的第一像素电路25和第二像素电路26沿第二方向X排列，且同一像素电路8中的第一像素电路25和第二像素电路26共用栅极驱动信号线45。
本公开实施例提供的显示面板，位于同一像素电路中的第一像素电路和第二像素电路共用栅极驱动信号线，从而可以减少驱动电路中信号线的数量，节省布线空间，从而可以增大第二发光区的发光面积，提高显示面板背面显示的发光效率，提高显示面板背面显示效果。
需要说明的是，图6例如为如图2所示的显示面板对应的像素电路，图7 例如为如图3所示的显示面板对应的像素电路，图8例如为如图4所示的显示面板对应的像素电路。
如图6所示，每一第一发光区2对应的像素电路8中包括3个第一像素电路25以及3个第二像素电路26；3个第一像素电路25以及3个第二像素电路26沿第一方向X排列，3个第一像素电路25分别驱动一个第一发光区2内的红光顶发射发光器件、蓝光顶发射发光器件、绿光顶发射发光器件发光，3个第二像素电路2分别驱动与该第一发光区2相邻的一个第二发光区3内的红光底发射发光器件、蓝光底发射发光器件、绿光底发射发光器件发光。
如图7所示，每一第一发光区2对应的像素电路8中包括2个第一像素电路25以及2个第二像素电路26；2个第一像素电路25以及2个第二像素电路26沿第一方向X排列。在具体实施时，偶数列的每一像素电路中，2个第一像素电路25分别驱动一个第一发光区2内的红光顶发射发光器件、绿光顶发射发光器件发光，2个第二像素电路2分别驱动与该第一发光区2相邻的一个第二发光区3内的红光底发射发光器件、绿光底发射发光器件发光；奇数列的每一像素电路中，2个第一像素电路25分别驱动一个第一发光区2内的蓝光顶发射发光器件、绿光顶发射发光器件发光，2个第二像素电路2分别驱动与该第一发光区2相邻的一个第二发光区3内的蓝光顶发射发光器件、绿光顶发射发光器件发光。
如图8所示，每一第一发光区2对应的像素电路8中包括3个第一像素电路25以及1个第二像素电路26；3个第一像素电路25以及3个第二像素电路26沿第一方向X排列，3个第一像素电路25分别驱动一个第一发光区2内的红光顶发射发光器件、蓝光顶发射发光器件、绿光顶发射发光器件发光；1个第二像素电路2驱动与该第一发光区2相邻的一个第二发光区3内的底发射发光器件发光；当与该第一发光区相邻的一个第二发光区包括红光底发射发光器件时，则1个第二像素电路2驱动红光底发射发光器件发光；当与该第一发光区相邻的一个第二发光区包括蓝光底发射发光器件时，则1个第二像素电路2驱动蓝光底发射发光器件发光；当与该第一发光区相邻的一个第 二发光区包括绿光底发射发光器件时，则1个第二像素电路2驱动绿光底发射发光器件发光。
需要说明的是，在具体实施时，栅极驱动信号线例如包括扫描信号线以及发光控制信号线。
在具体实施时，如图6～图8所示，信号线还包括多条沿第一方向Y延伸的数据信号线46。数据信号线46向像素电路8提供数据信号。
对于如图5所示的显示面板，在一些实施例中，如图9所示，阵列排布的多个第一发光区2划分为多个沿第二方向X延伸、沿第一方向Y排列的第一发光行48；
与第一发光区2对应的一个像素电路8包括：
三个第一像素电路25，每一第一像素电路25与一个顶发射发光器件电连接；
奇数行第一发光行48中的每一第一发光区2对应的一个像素电路8还包括：
两个虚设像素电路47；
偶数行第一发光行48中的每一第一发光区2对应的一个像素电路8还包括：
两个第二像素电路26，分别与在第二方向X上相邻的两个底发射发光器件电连接；虚设像素电路47和第二像素电路26的电路组成相同。
在一些实施例中，如图9所示，多条信号线包括：
多条栅极驱动信号线45，沿第二方向X延伸；
其中，奇数行第一发光行48中的每一第一发光区2对应的一个像素电路8中，第一像素电路25和虚设像素电路47沿第二方向X排列；偶数行第一发光行48中的每一第一发光区2对应的一个像素电路8中，第一像素电路25和第二像素电路26沿第二方向X排列，且第一像素电路25和第二像素电路26共用栅极驱动信号线45。
在具体实施时，当像素电路包括两个第二像素电路时，两个像素电路分 别驱动一个像素组中的位于同一列的两个底发射发光器件。这样，驱动一个像素组的4个第二像素电路位于同一行，可以共用栅极驱动信号线。
当然，在一些实施例中，也可以是偶数行第一发光行中的每个像素电路包括虚设像素电路，奇数行第一发光行中的每个像素电路包括第二像素电路。
在一些实施例中，图5所示的显示面板中，第一像素电路25和第二像素电路26的电路组成相同。
在具体实施时，第一像素电路、第二像素电路包括薄膜晶体管以及电容。
在一些实施例中，如图1所示，遮光层17与驱动电路所在膜层之间还包括缓冲层19。驱动电路所在膜层具体包括：有源层，第一栅绝缘层20、第一栅极金属层、第二栅绝缘层21、第二栅极金属层、层间绝缘层22、源漏电极层、平坦化层23。其中，有源层包括：第一像素电路25中薄膜晶体管的有源层27，以及第二像素电路26中薄膜晶体管的有源层32。第一栅极金属层包括：第一像素电路25中薄膜晶体管的栅极28，以及第二像素电路26中薄膜晶体管的栅极33。第二栅极金属层包括：第一像素电路25中薄膜晶体管的电容电极29，以及第二像素电路26中薄膜晶体管的电容电极34。源漏极金属层包括：第一像素电路25中薄膜晶体管的源极30和漏极31，以及第二像素电路26中薄膜晶体管的源极35和漏极36。第一阳极10通过平坦化层23的过孔与第一像素电路25中薄膜晶体管的漏极31电连接。第二阳极10通过平坦化层23的过孔与第二像素电路26中薄膜晶体管的漏极36电连接。图1中，显示面板还包括像素定义层24。
在具体实施时，第三阴极背离第二阴极的一侧，显示面板还包括封装层。
或者，当第一发光区和第二发光区包括的发光器件的数量相同时，顶发射发光器件和底发射发光器件可以共用部分电路。
在一些实施例中，每一第一发光区包括m个顶发射发光器件，每一第二发光区包括m个底发射发光器件，其中，m为正整数；
如图1所示，每一像素电路包括：
m个第三像素电路49；
m个第四像素电路，每一第四像素电路包括：与第三像素电路49电连接的第一子像素电路50和第二子像素电路51；第一子像素电路50还与顶发射发光器件5电连接，第二子像素电路51还与底发射发光器件6电连接；与同一第三像素电路49电连接的第一子像素电路50和第二子像素电路51，电连接的发光器件的发光颜色相同。
本公开实施例提供的显示面板，顶发射发光器件和底发射发光器件共用第三像素电路，通过第一子像素电路以及第三像素电路控制顶发射发光器件发光，通过第二子像素电路以及第三像素电路，相比于通过第一像素电路和第二像素电路分别控制顶发射发光器件发光和底发射发光器件发光的情况，可以减少第一发光区设置的像素电路的数量，减少部分信号线的数量，从而减少部分信号线的布线空间，可以提高第二发光区的发光面积，提高底发射像素的开口率。
在一些实施例中，如图10所示，第三像素电路49包括：驱动晶体管DTFT；
信号线包括：第一发光控制信号线EM1和第二发光控制信号线EM2；
第一子像素电路50包括：第一晶体管TFT1，第一晶体管TFT1的源极与驱动晶体管DTFT的漏极电连接，第一晶体管TFT1的栅极与第一发光控制信号线EM1电连接，第一晶体管TFT1的漏极与顶发射发光器件5电连接；
第二子像素电路51包括：第二晶体管TFT2，第二晶体管TFT的源极与驱动晶体管DTFT的漏极电连接，第二晶体管TFT的栅极与第二发光控制信号线EM2电连接，第二晶体管TFT的漏极与底发射发光器件6电连接。
本公开实施例提供的显示面板，对于一对顶发射发光器件和底发射发光器件的驱动电路，仅在第三像素电路与发光器件之间增加两个晶体管及其发光控制信号线，可以使一个第一发光区内的驱动电路数量大大减少，有效节约驱动电路的占用面积，从而提高第二发光区的面积，提高底发射开口率还可以提高背面显示的PPI。
在具体实施时，可以通过控制第一晶体管打开、第二晶体管关闭，实现仅第一发光区的发光器件发光；或者通过控制第一晶体管关闭、第二晶体管 打开，仅仅第二发光区的发光器件发光。当然，也可以通过控制第一晶体管、第二晶体管均打开，实现第一发光区的发光器件以及第二发光区的发光器件均发光。
需要说明的是，图10中仅示出一组第三像素电路和第四像素电路。
需要说明的是，在具体实施时，第一像素电路、第二像素电路以及第三像素电路通常还需要设置多个晶体管以及电容。第三像素电路的组成可以与第一像素电路的组成以及第二像素电路的组成相同。本公开实施例提供的显示面板，增加两个晶体管驱动两个不同发光区的发光器件发光相比于利用两个第三像素电路驱动两个不同发光区的发光器件发光可以大大减少像素电路的电学器件，还可以节省信号线的数量。
在一些实施例中，对于如图2所示的显示面板，每一第一发光区仅需要设置三组如图10所示的第三像素电路和第四像素电路。
在一些实施例中，对于如图3所示的显示面板，每一第一发光区仅需要设置两组如图10所示的第三像素电路和第四像素电路。
本公开实施例提供的一种显示装置，显示装置包括本公开实施例提供的显示面板。
本公开实施例提供的显示装置为：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。对于该显示装置的其它必不可少的组成部分均为本领域的普通技术人员应该理解具有的，在此不做赘述，也不应作为对本公开的限制。该显示装置的实施可以参见上述显示面板的实施例，重复之处不再赘述。
综上所述，本公开实施例提供的显示面板及显示装置，在一块透明衬底基板上，同时形成了正面发光的顶发射发光器件和反面发光的底发射发光器件，从而，使显示面板能够实现正面及反面同时发光及显示，即实现双面屏显示；由于仅采用了一块显示面板即实现了双面屏显示，相比于常规的两块屏幕贴合的双面屏显示方案，本公开实施例提供的双面显示面板很好的实现了轻薄化设计，并可以减少一块显示屏的成本。并且，驱动电路仅设置在第 一发光区，即驱动电路在透明衬底基板的正投影与第二发光区互不交叠，从而可以提高第二发光区的发光面积，提高底发射的发光效率，进而提高底发射背面显示的显示效果。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (20)

  1. 一种显示面板，其中，所述显示面板包括：
    透明衬底基板，包括显示区；所述显示区包括：多个沿第一方向和第二方向阵列排布的第一发光区，以及多个沿第一方向和第二方向阵列排布的第二发光区；所述第一发光区和所述第二发光区沿第三方向交替排布；所述第一方向和所述第二方向交叉，所述第三方向与所述第一方向和所述第二方向均交叉；
    发光器件，位于所述透明衬底基板的一侧，包括：位于所述第一发光区的顶发射发光器件，以及位于所述第二发光区的底发射发光器件；
    驱动电路，在所述第一发光区位于所述发光器件所在膜层和所述透明衬底基板之间，与所述发光器件电连接；包括：与所述第一发光区数量相同的多个像素电路，以及与所述像素电路电连接的多条信号线。
  2. 根据权利要求1所述的显示面板，其中，所述顶发射发光器件包括：
    第一阳极；包括反光材料；
    第一发光层，位于所述第一阳极背离所述驱动电路一侧；
    第一阴极，位于所述第一发光层背离所述第一阳极一侧，包括透光材料；
    所述底发射发光器件包括：
    第二阳极；包括透光材料，与所述第一阳极位于同一膜层；
    第二发光层，位于所述第二阳极背离所述驱动电路的一侧，与所述第一发光层位于同一膜层；
    第二阴极，包括透光材料，位于所述第二发光层背离所述第二阳极一侧，与所述第一阴极同层设置且形成整面连接的电极；
    第三阴极，在所述第二发光区位于所述第二阴极背离所述第二发光层一侧，包括反光材料。
  3. 根据权利要求1或2所述的显示面板，其中，所述显示面板还包括：
    遮光层，位于所述透明衬底基板和所述驱动电路所在膜层之间；多个所 述第一发光区相互连接，且所述遮光层覆盖多个所述第一发光区相互连接形成的区域；所述遮光层还具有：露出所述第二发光区的第一开口，所述第一开口的数量等于所述第二发光区的数量。
  4. 根据权利要求1所述的显示面板，其中，每一所述第一发光区包括的所述顶发射发光器件的数量，与每一所述第二发光区包括的所述底发射发光器件的数量相同。
  5. 根据权利要求4所述的显示面板，其中，所述第一发光区包括的所述顶发射发光器件的发光颜色种类，与所述第二发光区包括的所述底发射发光器件的发光颜色种类相同。
  6. 根据权利要求5所述的显示面板，其中，每一所述第一发光区包括：红光顶发射发光器件，蓝光顶发射发光器件，以及绿光顶发射发光器件；
    每一所述第二发光区包括：红光底发射发光器件，蓝光底发射发光器件，以及绿光底发射发光器件。
  7. 根据权利要求4所述的显示面板，其中，阵列排布的所述第一发光区划分为多个沿所述第一方向延伸、沿所述第二方向排列的第一发光列；阵列排布的多个第二发光区划分为多个沿所述第一方向延伸、沿所述第二方向排列的第二发光列；
    奇数列所述第一发光列中，各所述第一发光区包括的所述顶发射发光器件的发光颜色种类均相同；偶数列所述第一发光列中，各所述第一发光区包括的所述顶发射发光器件的发光颜色种类均相同；奇数列所述第一发光列中每一所述第一发光区包括的所述顶发射发光器件的发光颜色种类，与偶数列所述第一发光列中每一所述第一发光区包括的所述顶发射发光器件的发光颜色种类不完全相同；
    奇数列所述第二发光列中，各所述第二发光区包括的所述底发射发光器件的发光颜色种类均相同；偶数列所述第二发光列中，各所述第二发光区包括的所述底发射发光器件的发光颜色种类均相同；奇数列所述第二发光列中每一所述第二发光区包括的所述底发射发光器件的发光颜色种类，与偶数列 所述第二发光列中每一所述第二发光区包括的所述底发射发光器件的发光颜色种类不完全相同；
    奇数列所述第一发光列中每一所述第一发光区包括的所述顶发射发光器件的发光颜色种类，与奇数列所述第二发光列中每一所述第二发光区包括的所述底发射发光器件的发光颜色种类相同；偶数列所述第一发光列中每一所述第一发光区包括的所述顶发射发光器件的发光颜色种类，与偶数列所述第二发光列中每一所述第二发光区包括的所述底发射发光器件的发光颜色种类相同。
  8. 根据权利要求7所述的显示面板，其中，奇数列所述第一发光列中的每一所述第一发光区包括：沿所述第二方向排列的红光顶发射发光器件和绿光顶发射发光器件；偶数列所述第一发光列中的每一所述第一发光区包括：沿所述第二方向排列的蓝光顶发射发光器件和所述绿光顶发射发光器件；
    奇数列所述第二发光列中的每一所述第二发光区包括：沿所述第二方向排列的红光底发射发光器件和绿光底发射发光器件；偶数列所述第二发光列中的每一所述第二发光区包括：沿所述第二方向排列的蓝光底发射发光器件和所述绿光底发射发光器件。
  9. 根据权利要求1所述的显示面板，其中，每一所述第一发光区包括的所述顶发射发光器件的数量，与每一所述第二发光区包括的所述底发射发光器件的数量不相同。
  10. 根据权利要求9所述的显示面板，其中，每一所述第一发光区包括三个发光颜色不同的所述顶发射发光器件；
    每一所述第二发光区包括一个所述底发射发光器件。
  11. 根据权利要求10所述的显示面板，其中，每一所述第一发光区包括：红光顶发射发光器件，蓝光顶发射发光器件，以及绿光顶发射发光器件；
    阵列排布的多个第二发光区划分为多个沿所述第二方向排列的第二发光组；
    每一所述第二发光组包括：沿所述第一方向延伸、沿所述第二方向依次 排列的红色第二发光列，蓝色第二发光列以及绿色第二发光列；
    所述红色第二发光列中的每一所述第二发光区包括：红光底发射发光器件；
    所述蓝色第二发光列中的每一所述第二发光区包括：蓝光底发射发光器件；
    所述绿色第二发光列中的每一所述第二发光区包括：绿光底发射发光器件。
  12. 根据权利要求10所述的显示面板，其中，每一所述第一发光区包括：红光顶发射发光器件，蓝光顶发射发光器件，以及绿光顶发射发光器件；
    阵列排布的多个第二发光区划分为多个像素组，每一所述像素组包括两行乘两列的四个所述第二发光区；
    每一所述像素组中至少包括红光底发射发光器件，蓝光底发射发光器件，以及绿光顶发射发光器件。
  13. 根据权利要求4～11任一项所述的显示面板，其中，每一所述第一发光区包括m个所述顶发射发光器件，每一所述第二发光区包括n个所述底发射发光器件，其中，m，n均为正整数；
    与所述第一发光区对应的一个所述像素电路包括：
    m个第一像素电路，每一所述第一像素电路与一个所述顶发射发光器件电连接；
    n个第二像素电路，每一所述第二像素电路与一个所述底发射发光器件电连接。
  14. 根据权利要求13所述的显示面板，其中，多条所述信号线包括：
    多条栅极驱动信号线，沿所述第二方向延伸；
    其中，同一所述像素电路中的所述第一像素电路和所述第二像素电路沿所述第二方向排列，且同一所述像素电路中的所述第一像素电路和所述第二像素电路共用所述栅极驱动信号线。
  15. 根据权利要求12所述的显示面板，其中，阵列排布的多个第一发光 区划分为多个沿所述第二方向延伸、沿所述第一方向排列的第一发光行；
    与所述第一发光区对应的一个所述像素电路包括：
    三个第一像素电路，每一所述第一像素电路与一个所述顶发射发光器件电连接；
    奇数行所述第一发光行中的每一所述第一发光区对应的一个所述像素电路还包括：
    两个虚设像素电路；
    偶数行所述第一发光行中的每一所述第一发光区对应的一个所述像素电路还包括：
    两个第二像素电路，分别与在所述第二方向上相邻的两个所述底发射发光器件电连接；所述虚设像素电路和所述第二像素电路的电路组成相同。
  16. 根据权利要求15所述的显示面板，其中，多条所述信号线包括：
    多条栅极驱动信号线，沿第二方向延伸；
    其中，奇数行所述第一发光行中的每一所述第一发光区对应的一个所述像素电路中，所述第一像素电路和所述虚设像素电路沿所述第二方向排列；偶数行所述第一发光行中的每一所述第一发光区对应的一个所述像素电路中，所述第一像素电路和所述第二像素电路沿所述第二方向排列，且所述第一像素电路和所述第二像素电路共用所述栅极驱动信号线。
  17. 根据权利要求13～16任一项所述的显示面板，其中，所述第一像素电路和所述第二像素电路的电路组成相同。
  18. 根据权利要求4～8任一项所述的显示面板，其中，每一所述第一发光区包括m个所述顶发射发光器件，每一所述第二发光区包括m个所述底发射发光器件，其中，m为正整数；
    每一所述像素电路包括：
    m个第三像素电路；
    m个第四像素电路，每一所述第四像素电路包括：与所述第三像素电路电连接的第一子像素电路和第二子像素电路；所述第一子像素电路还与所述 顶发射发光器件电连接，所述第二子像素电路还与所述底发射发光器件电连接；与同一所述第三像素电路电连接的所述第一子像素电路和所述第二子像素电路，电连接的所述发光器件的发光颜色相同。
  19. 根据权利18所述的显示面板，其中，所述第三像素电路包括：驱动晶体管；
    所述信号线包括：第一发光控制信号线和第二发光控制信号线；
    所述第一子像素电路包括：第一晶体管，所述第一晶体管的源极与所述驱动晶体管的漏极电连接，所述第一晶体管的栅极与所述第一发光控制信号线电连接，所述第一晶体管的漏极与所述顶发射发光器件电连接；
    所述第二子像素电路包括：第二晶体管，所述第二晶体管的源极与所述驱动晶体管的漏极电连接，所述第二晶体管的栅极与所述第二发光控制信号线电连接，所述第二晶体管的漏极与所述底发射发光器件电连接。
  20. 一种显示装置，其中，所述显示装置包括根据权利要求1～19任一项所述的显示面板。
PCT/CN2021/125708 2021-03-29 2021-10-22 显示面板及显示装置 WO2022205858A1 (zh)

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