WO2020093692A1 - 显示屏及集成有该显示屏的显示装置、盖板 - Google Patents

显示屏及集成有该显示屏的显示装置、盖板 Download PDF

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Publication number
WO2020093692A1
WO2020093692A1 PCT/CN2019/090212 CN2019090212W WO2020093692A1 WO 2020093692 A1 WO2020093692 A1 WO 2020093692A1 CN 2019090212 W CN2019090212 W CN 2019090212W WO 2020093692 A1 WO2020093692 A1 WO 2020093692A1
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Prior art keywords
display
area
display area
transition
brightness
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PCT/CN2019/090212
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English (en)
French (fr)
Inventor
朱可
申丽萍
王鑫楠
徐琳
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云谷（固安）科技有限公司
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Publication of WO2020093692A1 publication Critical patent/WO2020093692A1/zh
Priority to US16/994,675 priority Critical patent/US11107402B2/en

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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
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    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3216—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using a passive matrix
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    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • 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
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • H10K59/1213—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being 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
    • H10K59/128—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
    • 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
    • H10K59/17—Passive-matrix OLED 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
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
    • H10K59/65—OLEDs integrated with inorganic image sensors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • G—PHYSICS
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0232—Special driving of display border areas
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    • G09G2320/00—Control of display operating conditions
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    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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    • G09G2320/0686—Adjustment of display parameters with two or more screen areas displaying information with different brightness or colours
    • G—PHYSICS
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    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas

Definitions

  • the present application relates to the field of display technology, in particular to a display panel and a display terminal.
  • Various embodiments disclosed in the present application provide a display panel and a display terminal to effectively improve the brightness difference at the junction of adjacent display areas on the display panel, thereby improving the display performance of the display panel and the display terminal.
  • An aspect of the present application provides a display panel that may have a first display area, a display transition area, and a second display area, the first display area and the second display area are of different types, and all The first display area and the second display area are located on opposite sides of the display transition area,
  • the display transition area includes multiple display transition unit areas, and
  • the plurality of display transition unit areas are sequentially arranged adjacent to each other, and the first display area, the display transition unit area, and the first When the two display areas are displayed on the same screen, their respective brightness values increase or decrease in sequence, and the brightness of each of the display transition unit areas is different.
  • the display transition area composed of a plurality of display transition unit areas whose brightness gradually changes in order to effectively reduce the difference in brightness between the first display area and the second display area, and avoid the appearance of obvious boundaries between adjacent display areas defect.
  • the first display area and the display transition area are of the same type.
  • the brightness value of the first display area is greater than the brightness value of the second display area
  • the unit display area of the display transition area is smaller than the first display The unit display area of the zone.
  • the unit display area of the display transition unit area sequentially decreases.
  • the aperture ratio of the display transition area is smaller than the pixel aperture ratio of the first display area.
  • the pixel aperture ratio of the display transition unit area decreases in sequence.
  • the pixel density of the display transition area is less than the pixel density of the first display area.
  • the pixel density of the display transition unit area sequentially decreases.
  • the display panel is provided with a first driving TFT and a plurality of second driving TFTs, and the channel width-to-length ratio of the first driving TFT is larger than that of the second driving TFT
  • the first driving TFT is used to drive the pixel driving circuit of the first display area
  • the second driving TFT is used to drive the pixel driving circuit of each display transition unit area.
  • the channel width-to-length ratio of each second driving TFT for driving the display transition unit area Decrease in turn.
  • the second display area is the same type as the display transition area.
  • the brightness difference between adjacent display transition unit areas is greater than 1 nit.
  • the first display area is an AMOLED display area
  • the second display area is a PMOLED display area or an AMOLED-like display area.
  • the display transition area is an AMOLED display area
  • at least one row or at least one column of sub-pixel areas is provided in the display transition area.
  • the second display area is an area partially or completely surrounded by the first display area.
  • the second display area is an area not surrounded by the first display area.
  • the first display area is a PMOLED display area
  • the second display area is an AMOLED display area
  • the display transition area is a PMOLED display area
  • at least one row or at least one column of pixel unit areas is provided in the display transition area, and the pixel unit areas are driven by the same anode structure Pixel area.
  • a display terminal including:
  • the display panel according to any one of the above is provided on the device body,
  • the device area is located below the second display area, and a photosensitive device is provided in the device area, and the photosensitive device receives light through the second display area.
  • the photosensitive device includes a camera and / or a sensor.
  • FIG. 1 is a schematic structural diagram of a display panel in an alternative embodiment
  • FIG. 2 is a schematic diagram of a display transition area provided in the main display area in an alternative embodiment
  • FIG. 3 is a schematic diagram of a display transition area provided in the auxiliary display area in an alternative embodiment
  • FIG. 4 is a channel diagram of a TFT device in an alternative embodiment
  • FIG. 5 is a schematic structural diagram of a display terminal in an embodiment
  • FIG. 6 is a schematic structural diagram of the device body shown in FIG. 5;
  • FIG. 7 is a schematic structural diagram of the display panel shown in FIG. 5;
  • FIG. 8 is a cross-sectional view of an AMOLED-like display panel in an alternative embodiment.
  • each exemplary embodiment of the present application provides a display screen, which implements a full-screen display of an electronic device by providing a transparent display panel in a slotted area.
  • OLED Organic Light-Emitting Diode
  • PMOLED Passive Matrix OLED, passive drive organic light emitting diode
  • AMOLED Active Matrix OLED, active drive organic light emitting diode
  • the display panel of the PMOLED forms a matrix with cathodes and anodes, and lights pixels in the array in a scanning manner. Each pixel is operated in a short pulse mode to form an instant high-brightness light emission. Because the PMOLED display panel has no TFT (Thin Film Transistor, thin film transistor) backplane and metal traces, the light transmittance is high, so it can be applied to the aforementioned transparent display panel in the slotted area.
  • TFT Thin Film Transistor, thin film transistor
  • an exemplary embodiment of the present application creatively proposes that, by setting a display transition area with a brightness between the two areas between adjacent display areas with brightness differences, and
  • the display transition area is provided with a plurality of display transition unit areas whose brightness gradually changes, thereby reducing or even eliminating the display boundary between the two display areas to avoid the defect of a black line when displaying a full screen, thereby improving the full screen display effect.
  • FIG. 1 is a schematic structural diagram of a display panel in an alternative embodiment.
  • the display panel 10 may have multiple display areas, such as the first display area 11, the second display area 12, and the display transition area 13 shown in FIG. 1.
  • the display transition area 13 is disposed in the area between the first display area 11 and the second display area 12.
  • the display transition area 13 may include at least two display transition unit areas that are sequentially arranged adjacent to each other. In the embodiment shown in FIG.
  • the display transition area 13 includes a first display transition unit area 131, a second display transition unit area 132, a third display transition unit area 133 and a fourth display transition unit area 134.
  • the number of the at least two display transition unit areas may be two, three, four, five, etc.
  • the specific number of display transition unit areas can be adjusted adaptively according to the difference in brightness between the first display area 11 and the second display area 12 and requirements.
  • the embodiment of the present application does not specifically limit the specific number of display transition unit areas.
  • the display transition area 13 when the display transition area 13 is displayed as a full screen together with the first display area 11 and the second display area 12 (that is, as the same screen display), the brightness of the display transition area 13 is between the first display area 11 Between the brightness of the first display transition unit area 131, the second display transition unit area 132, the third display transition unit area 133, and the fourth display transition unit area 134 .
  • the brightness of the first display transition unit area 131 is greater than that of the second display area 12
  • the brightness of the second display transition unit area 132 is greater than the brightness of the first display transition unit area 131
  • the third display transition The brightness of the unit area 133 is greater than that of the second display transition unit area 132
  • the brightness of the fourth display transition unit area 134 is greater than that of the third display transition unit area 133
  • the brightness of the first display area 11 is greater than that of the fourth display transition unit area
  • the brightness of 134 or it may be set that the brightness of the first display transition unit area 131 is less than the brightness of the second display area 12
  • the brightness of the second display transition unit area 132 is less than the brightness of the first display transition unit area 131
  • the third The brightness of the display transition unit area 133 is less than the brightness of the second display transition unit area 132
  • the brightness of the fourth display transition unit area 134 is less than the brightness of the third display transition unit area 133
  • the brightness of the first display area 11 is less than the
  • the second display area 12 when displayed as the same screen, the first display transition unit area 131, the second display transition unit area 132, the third display transition unit area 133, the fourth display transition unit area 134 and the first
  • the brightness between the display areas 11 is gradually increasing or decreasing, and then the display transition area 13 is used to reduce or even eliminate the above-mentioned defects that occur when the first display area 11 and the second display area 12 are displayed as a full screen. Improve the effect of full screen display.
  • the brightness difference between adjacent display transition unit areas when displayed on the same screen, the brightness difference between adjacent display transition unit areas may be the same or different, but the brightness difference between any two adjacent display transition unit areas is required. Greater than 1nit, for example, 3int, 5int, 7int, etc. As shown in FIG.
  • the difference between the brightness of the first display transition unit area 131 and the brightness of the second display area 12, the brightness of the second display transition unit area 132 and the brightness of the first display transition unit area 131 The brightness difference, the brightness of the third display transition unit area 133 and the brightness difference of the second display transition unit area 132, the brightness difference of the fourth display transition unit area 134 and the brightness difference of the third display transition unit area 133, the first display area 11
  • the brightness difference between the brightness of the fourth display transition unit area 134 and the brightness of the third display transition unit area 134 are both 3int, thereby making the display transition area 13 exhibit a uniform brightness change, which can further eliminate the brightness boundary between adjacent display areas and improve the display effect of the display panel .
  • the type of the above-mentioned display transition area 13 may be the same as the type of the first display area 11 or the second display area 12, and the pixel aperture ratio, pixel Density, etc. to change the unit display area of each display transition unit region in the display transition region 13, and / or, by adjusting the channel width-to-length ratio of the TFT device in the drive circuit of the display transition region 13, the above display transition region
  • the brightness of the display transition unit area in 13 is between the brightness of the first display area 11 and the brightness of the second display area 12, and the brightness value between the first display area 11 and the display transition area 13, the second display
  • the brightness value between the area 12 and the display transition area 13 and the brightness value between each adjacent transition unit area change uniformly in the extending direction from the second display area 12 to the first display area 11 to further Improve the brightness difference between adjacent display areas.
  • FIG. 2 is a schematic diagram of a display transition area provided in the main display area in an alternative embodiment.
  • the display panel 20 has a main display area 21 and a second display area 22, and the second display area 22 may be partially (as shown in FIG. 2) or completely (not shown) by the main display area 21 )around.
  • the second display area may not be surrounded by the main display area.
  • the main display area 21 may include a display transition area 211 and a first display area 212, that is, the display transition area 211 and the first display area 212 are the same type of display area formed on the same substrate. Therefore, the second display area 22 and the first display area 212 are different types of display areas, and their driving methods, device structures, etc. have large differences.
  • the second display area 22 and the first display area 212 are arranged directly adjacent to each other, when it is displayed as a full screen on the same screen, there will be a certain difference in brightness between the two.
  • the display transition area 211 may be based on the first display area 212, as shown in FIG.
  • the arrangement of the display transition unit regions described above reduces the brightness of the display transition region 211 by, for example, reducing the pixel aperture ratio, reducing the pixel density, and reducing the channel width-to-length ratio of the TFT device in the pixel driving circuit, so that When displayed on the same screen, the brightness of the display transition area 211 is between the brightness of the second display area 22 and the brightness of the first display area 212, and the adjacent display transition unit area in the display transition area 211 ( Figure 2 is not Each brightness between (shown) also changes uniformly to further improve the brightness difference boundary between adjacent display areas.
  • the display transition area 211 can be based on the first display area 212 by, for example, increasing the pixel aperture ratio, increasing the pixel density, and increasing the pixel drive
  • the channel width to length ratio of the TFT device in the circuit is used to improve the brightness of the display transition area 211, and the brightness between adjacent display transition unit areas also changes uniformly, so that when displayed on the same screen, the display transition area
  • the brightness of 211 is between the brightness of the second display area 22 and the brightness of the first display area 212.
  • FIG. 3 is a schematic diagram of setting a display transition area in the secondary display area in an alternative embodiment.
  • the display panel 30 has a first display area 31 and a sub-display area 32, and the sub-display area 32 may be partially (as shown in FIG. 3) or completely (not shown) by the first display area 31 )
  • the secondary display area 32 may not be surrounded by the first display area 31.
  • the secondary display area 32 may include a second display area 321 and a display transition area 322, that is, the display transition area 322 and the second display area 321 are the same type of display area formed on the same substrate. Therefore, since the first display area 31 and the second display area 321 are different types of display areas, and their driving methods, device structures, etc.
  • the display transition area 322 can be based on the second display area 321 by, for example, reducing the pixel aperture ratio, reducing Pixel density, reducing the channel width-to-length ratio of the TFT device in the pixel driving circuit, etc., to reduce the brightness of the display transition area 322, so that when displayed on the same screen, the brightness of the display transition area 322 is between that of the first display area 31 Between the brightness and the brightness of the second display area 321, and the adjacent display transition unit area (not shown in FIG.
  • each of the display transition unit areas set in FIG. The brightness also changes uniformly in the direction from the first display area 31 to the second display area 321.
  • the display transition area 322 can be based on the second display area 321 by, for example, increasing the pixel aperture ratio, increasing the pixel density, and increasing the pixel drive
  • the channel width to length ratio of the TFT device in the circuit, etc. adopts the arrangement mode of each display transition unit region in FIG.
  • the brightness between them also changes uniformly (refer to the display transition unit areas 131, 132, 133, 134 set in FIG. 1), so that when displayed on the same screen, the brightness of the display transition area 322 is between the first Between the brightness of the display area 31 and the brightness of the second display area 321.
  • a transparent display panel such as an organic light emitting diode or a liquid crystal display (Liquid Crystal Display, LCD for short) can be provided in the first display area.
  • a display area of PMOLED or an AMOLED-like display area can be set in the second display area, and an AMOLED display area can be set in the first display area.
  • the above-mentioned display panel may be a transparent display screen.
  • the display panel may include multiple film layers.
  • the light transmittance of each film layer can be greater than 90%, and the light transmittance of the display panel can be greater than 70%.
  • the light transmittance of each film layer is 91%, 93%, 95%, 97%, 98% or 99%, etc., while the light transmittance of the display panel is 70%, 75%, 80%, 85%, 90 % Or 95% etc.
  • the above light transmittance can be determined according to actual needs and process capabilities.
  • the pixel definition layer and the planarization layer in the display panel can also be made of high light transmittance materials, as long as the above-mentioned film layers can ensure that the display panel is transparent can.
  • the material of the pixel definition layer in the transparent display panel may be a light blocking material, which is used to form the display module formed in the pixel opening on the pixel definition layer The diffraction is improved.
  • the light transmittance of each film layer in the above display panel can be greater than 90% (such as 90%, 92%, 94%, 95% or 98%, etc.), and the entire display panel The light transmittance should be greater than 70% (such as 70%, 76%, 80%, 88% or 98%, etc.).
  • the material of the conductive film layer in the display panel can be ITO, IZO, ITO doped with Ag, or IZO doped with Ag, etc.
  • the material of the insulating film layer in the transparent display panel can be SiO 2 , SiN x and Al 2 O 3 and other transparent insulating materials to further ensure the light transmittance of the display panel.
  • the main display area 21 may be an AMOLED display area
  • the second display area 22 may be a PMOLED display area. Since the brightness of the OLED device has a positive relationship with the output current of the driving TFT device, and the output current I oled formula of the TFT device is:
  • ⁇ n is the electron mobility of the driving TFT
  • Cox is the gate oxide capacitance per unit area
  • V GS is the gate source voltage
  • V th is the threshold voltage
  • W is the width of the driving TFT device channel 40
  • L is The length of the channel 40 driving the TFT device.
  • the trench of the driving TFT device can be improved by increasing the width W of the driving TFT device channel 40 and / or reducing the length of the driving TFT device channel 40
  • the channel width-to-length ratio then increases the output current of the driving TFT device to achieve the purpose of improving the brightness of the display area.
  • the channel width-to-length ratio of the driving TFT device can also be reduced by reducing the width W of the driving TFT device channel 40 and / or increasing the length of the driving TFT device channel 40, which in turn reduces the driving TFT device To reduce the brightness of the display area.
  • the output current of the driving TFT device is changed, so that under the premise of the same data signal, the brightness of the display transition region 211 is between the second display region 22 Between the brightness of and the brightness of the first display area 212.
  • the display transition area in the above embodiments is an AMOLED display area
  • at least one row or at least one column of sub-pixel areas is provided in the display transition area.
  • the display transition area is a PMOLED display area
  • at least one row or at least one column of pixel unit areas is provided in the display transition area, and the above pixel unit areas are pixel areas driven by the same anode structure to ensure the display transition area Can be displayed normally.
  • FIG. 5 is a schematic structural diagram of a display terminal in an embodiment. As shown in FIG. 5, an exemplary embodiment of the present application further provides a display terminal 50.
  • the display terminal 50 may include a device body 52 and a display panel 54.
  • the display panel 54 is disposed on the device body 52, and the device body 52 and the display panel 54 are electrically connected to each other.
  • the display panel 54 may be the display panel described in any of the foregoing embodiments, and is used to display according to data or signals sent by the device body 52 and / or to cause the device body 52 to perform operations according to user manipulation.
  • FIG. 6 a schematic structural diagram of the device body 52 shown in FIG. 5 is shown.
  • the above-mentioned device body 52 may be provided with a non-device area 522 and a device area 524.
  • a photosensitive device such as a camera 526 or a light sensor may be provided.
  • FIG. 7 a schematic diagram of the structure of the display panel 54 shown in FIG. 5 is shown.
  • the above-mentioned display panel 54 may include a second display area 544 (or secondary display area) and a first display area 542 (or main display area) . Referring to FIGS.
  • the first display area (such as the slotted area) 544 is attached correspondingly to the device area 524 shown in FIG. 6, so that The photosensitive device can pass through the second display area 544 to receive and sense the external light 60.
  • a display transition area (not shown in the figure) is provided in the first display area 542 adjacent to the second display area 544 to Therefore, when the first display area 542, the display transition area and the second display area 544 are displayed on the same screen, the display brightness thereof can gradually change, and the brightness of the display transition unit area provided in the display transition area also changes gradually. In order to make the brightness between adjacent display areas change uniformly, so as to effectively avoid the defects such as black lines caused by the difference between the brightness of adjacent display transition unit areas is too large, thereby improving the display terminal display The display effect of the screen.
  • the display panel in the second display area 544 may be set as a transparent display panel. In this way, when the photosensitive device is in operation, the second display area 544 can be in a non-display state to increase the light transmittance of the second display area 544.
  • the display panel in the second display area 544 is a PMOLED display panel or an AMOLED-like display panel.
  • the display panel in the first display area 542 is an AMOLED display panel.
  • the AMOLED-like display panel means that its pixel circuit includes only one switching element (ie, driving TFT), and has no capacitance structure.
  • the other structure of the AMOLED-like display panel is the same as the AMOLED display panel.
  • the display panel in the second display area 544 is an AMOLED-like display panel as an example for description.
  • FIG. 8 is a cross-sectional view of an AMOLED-like display panel in an embodiment.
  • This type of AMOLED display panel includes a substrate 610 and a pixel circuit 620 disposed on the substrate 610.
  • a plurality of pixel circuits 620 form a TFT array.
  • a first electrode layer is provided on the pixel circuit 620.
  • the first electrode layer includes a plurality of first electrodes 630, and the first electrodes 630 correspond to the pixel circuits 620 in a one-to-one correspondence.
  • the first electrode 630 is an anode.
  • the AMOLED-like display panel further includes a pixel defining layer 640 disposed between the first electrodes 630 to define the pixel display area.
  • the pixel defining layer 640 has a plurality of openings, and a light emitting structure layer 650 is disposed in the openings to form a plurality of sub-pixels.
  • the sub-pixels correspond to the first electrodes 630 in one-to-one correspondence.
  • a second electrode 660 is provided above the light emitting structure layer 650.
  • the second electrode 660 is a cathode, and the cathode is a surface electrode, that is, an entire surface electrode formed of an entire surface electrode material.
  • the pixel circuit 620 is provided with scanning lines, data lines, and TFT switching elements. Both the scanning line and the data line are connected to the TFT switching element. The scan line controls the turning on and off of the TFT switching element. When the pixel is turned on, the data line provides a driving current to the first electrode 630 to control the sub-pixel to emit light.

Abstract

一种显示面板(10，20，30，54)和显示终端(50)。显示面板(10，20，30，54)包括第一显示区(11，212，31，542)、显示过渡区(13，211，322)和第二显示区(12，22，321，544)，第一显示区(11，212，31，542)与第二显示区(12，22，321，544)的类型相异。第一显示区(11，212，31，542)和第二显示区(12，22，321，544)位于显示过渡区(13，211，322)相对的两侧。显示过渡区(13，211，322)包括多个显示过渡单元区(131，132，133，134)，并在第一显示区(11，212，31，542)到第二显示区(12，22，321，544)的方向上延伸。多个显示过渡单元区(131，132，133，134)依次相邻设置。在作为同一屏幕显示时，第一显示区(11，212，31，542)、多个显示过渡单元区(131，132，133，134)和第二显示区(12，22，321，544)的亮度依次增加或减小，且不同的显示过渡单元区(131，132，133，134)的亮度不同，以使得多个显示过渡单元区(131，132，133，134)通过依次渐变的多个亮度构成显示过渡区(13，211，322)，从而有效降低第一显示区(11，212，31，542)与第二显示区(12，22，321，544)之间的亮度差。

Description

显示屏及集成有该显示屏的显示装置、盖板
援引加入
本申请要求将于2018年11月7日提交中国专利局、申请号为201811320099.8、发明名称为“显示面板和显示终端”的中国专利申请的优先权，其全部内容通过引用并入在本申请中。
技术领域
本申请涉及显示技术领域，特别是涉及一种显示面板和显示终端。
背景技术
随着电子设备的快速发展，用户对屏占比的要求越来越高，使得电子设备的全面屏显示受到业界越来越多的关注。
对于传统的电子设备如手机、平板电脑等，由于需要集成诸如前置摄像头、听筒和红外感应元件等的器件，所以需要在显示面板上开槽(Notch)或在显示面板上开孔，以在开槽区域或开孔区域设置这些器件。但是，开槽区域或开孔区域均不用于显示画面。
因此，这些电子设备均不是真正意义上的全面屏，并不能在整个屏幕的各个区域均进行显示，如在摄像头区域不能显示画面；同时，不同显示区之间存在较大的亮度差。
发明内容
本申请公开的各种实施例提供了一种显示面板和显示终端，来有效改善显示面板上相邻显示区域交界处的亮度差异，从而提升显示面板及显示终端的显示性能。
本申请的一方面提供一种显示面板，该显示面板可具有第一显示区、显示过渡区和第二显示区，所述第一显示区与所述第二显示区的类型相异，且所述第一显示区和所述第二显示区位于所述显示过渡区相对的两侧，
所述显示过渡区包括多个显示过渡单元区，以及
在从所述第一显示区到所述第二显示区的方向上，所述多个显示过渡单元区依次相邻设置，并且所述第一显示区、所述显示过渡单元区和所述第二显示区在作为同一屏幕显示时各自的亮度值依次增大或减小，且各所述显示过渡单元区的亮度不同。这样，通过多个亮度依次渐变的显示过渡单元区所构成的显示过渡区，来有效降低第一显示区与第二显示区之间的亮度差，避免相邻显示区之间出现明显的界线的缺陷。
在一个可选实施例中，所述第一显示区与所述显示过渡区的类型相同。
在一个可选实施例中，在作为同一屏幕显示时，所述第一显示区的亮度值大于所述第二显示区的亮度值，所述显示过渡区的单位显示面积小于所述第一显示区的单位显示面积。
在一个可选实施例中，在从所述第一显示区到所述第二显示区的方向上，所述显示过渡单元区的单位显示面积依次减小。
在一个可选实施例中，所述显示过渡区的开口率小于所述第一显示区的像素开口率。
在一个可选实施例中，在从所述第一显示区到所述第二显示区的方向上，所述显示过渡单元区的像素开口率依次减小。
在一个可选实施例中，所述显示过渡区的像素密度小于所述第一显示区的像素密度。
在一个可选实施例中，在从所述第一显示区到所述第二显示区的方向上，所述显示过渡单元区的像素密度依次减小。
在一个可选实施例中，所述显示面板中设置有第一驱动TFT和多个第二驱动TFT，且所述第一驱动TFT的沟道宽长比大于所述第二驱动TFT的沟道宽长比，所述第一驱动TFT用于驱动所述第一显示区域的像素驱动电路，所述第二驱动TFT用于驱动各所述显示过渡单元区的像素驱动电路。
在一个可选实施例中，在从所述第一显示区到所述第二显示区的方向上，用于驱动所述显示过渡单元区的各所述第二驱动TFT的沟道宽长比依次减小。
在一个可选实施例中，所述第二显示区与所述显示过渡区的类型相同。
在一个可选实施例中，在作为同一屏幕显示时，相邻所述显示过渡单元区之间的亮度差大于1nit。
在一个可选实施例中，所述第一显示区为AMOLED显示区，并且所述第二显示区为PMOLED显示区或类AMOLED显示区。
在一个可选实施例中，当所述显示过渡区为AMOLED显示区时，所述显示过渡区中设置有至少一行或至少一列子像素区。
在一个可选实施例中，所述第二显示区为被所述第一显示区部分地或全部地围绕的区域。
在一个可选实施例中，所述第二显示区为不被所述第一显示区围绕的区域。
在一个可选实施例中，所述第一显示区为PMOLED显示区，并且所述第二显示区为AMOLED显示区。
在一个可选实施例中，当所述显示过渡区为PMOLED显示区时，所述显示过渡区中设置有至少一行或至少一列像素单元区，且所述像素单元区为同一个阳极结构所驱动的像素区。
本申请的另一方面提供一种显示终端，包括：
设备本体，具有器件区；
如上述任意一项的显示面板，设置在所述设备本体上，
所述器件区位于所述第二显示区下方，且所述器件区中设置有感光器件，所述感光器件透过所述第二显示区接收光线。
在一个可选实施例中，所述感光器件包括摄像头和/或感应器。
附图说明
图1是一个可选的实施例中显示面板的结构示意图；
图2是一个可选的实施例中在主显示区中设置有显示过渡区的示意图；
图3是一个可选的实施例中在副显示区中设置有显示过渡区的示意图；
图4是一个可选的实施例中TFT器件的沟道示图；
图5是一个实施例中显示终端的结构示意图；
图6是图5中所示设备本体的结构示意图；
图7是图5中所示显示面板的结构示意图；
图8是一个可选的实施例中的类AMOLED显示面板的剖视图。
具体实施方式
为了便于理解本申请，下面将参照相关附图对本申请的示例性实施例进行更全面的描述。本申请可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对本申请的公开内容的理解更加透彻全面。
在电子设备如手机、平板电脑等中，由于需要集成诸如前置摄像头、听筒以及红外感应元件等，故而可通过在显示屏上开槽，以在开槽区域设置摄像头、听筒以及红外感应元件等。但是，这样的开槽区域并不用于显示画面。可选地，通过在屏幕上开孔的方式，实现电子设备的摄像功能。这样，外界光线可通过屏幕上的开孔进入位于屏幕下方的感光元件。但是，这些电子设备均不是真正意义上的全面屏，并不能在整个屏幕的各个区域均进行显示，例如，在摄像头的区域不能显示画面。
针对上述问题，本申请的各示例性实施例提供一种显示屏，其通过在开槽区域内设置透明显示面板的方式来实现电子设备的全面屏显示。根据驱动方式的不同，OLED(Organic Light-Emitting Diode，有机发光二极管)可以分为PMOLED(Passive Matrix OLED，被动式驱动有机发光二极管)和AMOLED(Active Matrix OLED，主动式驱动有机发光二极管)两种。以PMOLED为例，PMOLED的显示阵列的同一行显示单元的同一性质电极是共用的，并且同一列显示单元的同一性质电极也是共用的。具体地，PMOLED的显示面板通过阴极、阳极构成矩阵，以扫描方式点亮阵列中的像素。每个像素都是在短脉冲模式下进行操作，从而形成瞬间高亮度发光。由于PMOLED显示面板无TFT(Thin Film Transistor，薄膜晶体管)背板和金属走线，使得光线透过率高，从而可以被应用于前述的在开槽区域内的透明显示面板。
针对显示面板采用诸如PMOLED显示面板和AMOLED显示面板进行全面屏显示时，由于其驱动方式、器件结构等均具有较大的差异性，故而会使得两 个显示面板所对应的显示区亮度存在明显差异，进而会导致在全面屏显示时，在两个显示区之间会存在明显的界线，甚至会出现黑线，从而导致大幅度的降低全面屏的显示效果。
为了解决上述的问题，本申请的示例性实施例中创造性的提出，通过在相邻的存在亮度差异的显示区之间的区域中，设置一个亮度介于两者之间的显示过渡区，且该显示过渡区中设置有亮度逐渐变化的多个显示过渡单元区，从而减轻，甚至消除两个显示区之间的显示界线，以避免全面屏显示时出现黑线的缺陷，从而提升全面屏的显示效果。
图1是一个可选的实施例中显示面板的结构示意图。如图1所示，在一个可选的实施例中，显示面板10可具有多个显示区，例如图1中所示的第一显示区11、第二显示区12和显示过渡区13等。上述的第一显示区11和第二显示区12作为全面屏显示时，两者之间会存在一定的亮度差。显示过渡区13则设置在第一显示区11与第二显示区12之间的区域中。在沿从第二显示区12向第一显示区11延伸的方向上，显示过渡区13可包括依次相邻设置的至少两个显示过渡单元区。在如图1中所示实施例中，显示过渡区13包括第一显示过渡单元区131、第二显示过渡单元区132、第三显示过渡单元区133和第四显示过渡单元区134。其中，上述的至少两个显示过渡单元区的数量可以为两个、三个、四个、五个等。显示过渡单元区的具体数量可依据第一显示区11与第二显示区12之间的亮度差及需求进行适应性调整，本申请实施例对显示过渡单元区的具体数量并无特别的限定。
如图1所示，当显示过渡区13与第一显示区11和第二显示区12共同作为全面屏显示(即作为同一屏幕显示)时，显示过渡区13的亮度介于第一显示区11的亮度与第二显示区12的亮度之间，且第一显示过渡单元区131、第二显示过渡单元区132、第三显示过渡单元区133和第四显示过渡单元区134的亮度也渐次变化。例如，作为同一屏幕显示时，第一显示过渡单元区131的亮度大于第二显示区12的亮度、第二显示过渡单元区132的亮度大于第一显示过渡单元区131的亮度、第三显示过渡单元区133的亮度大于第二显示过渡单元区132 的亮度、第四显示过渡单元区134的亮度大于第三显示过渡单元区133的亮度、第一显示区11的亮度大于第四显示过渡单元区134的亮度，或者，也可设置为第一显示过渡单元区131的亮度小于第二显示区12的亮度、第二显示过渡单元区132的亮度小于第一显示过渡单元区131的亮度、第三显示过渡单元区133的亮度小于第二显示过渡单元区132的亮度、第四显示过渡单元区134的亮度小于第三显示过渡单元区133的亮度、第一显示区11的亮度小于第四显示过渡单元区134的亮度。换言之，在作为同一屏幕显示时，上述第二显示区12、第一显示过渡单元区131、第二显示过渡单元区132、第三显示过渡单元区133、第四显示过渡单元区134和第一显示区11之间的亮度呈现逐渐增加或逐渐降低的趋势，进而通过该显示过渡区13来减轻，甚至消除第一显示区11和第二显示区12作为全面屏显示时出现的上述缺陷，进而提升全面屏显示的效果。
在一个可选的实施例中，在作为同一屏幕显示时，相邻的显示过渡单元区之间的各亮度差可相同或不同，但任意两相邻显示过渡单元区之间的亮度差均需大于1nit，例如可以为3int、5int、7int等。如图1所示，在作为同一屏幕显示时，第一显示过渡单元区131的亮度与第二显示区12的亮度差、第二显示过渡单元区132的亮度与第一显示过渡单元区131的亮度差、第三显示过渡单元区133的亮度与第二显示过渡单元区132的亮度差、第四显示过渡单元区134的亮度与第三显示过渡单元区133的亮度差、第一显示区11的亮度与第四显示过渡单元区134的亮度差均为3int，进而使得显示过渡区13呈现均匀的亮度变化，从而能够进一步的消除相邻显示区之间的亮度界线，提升显示面板的显示效果。
在一个可选的实施例中，如图1所示，上述的显示过渡区13的类型可与第一显示区11或第二显示区12类型相同，并且还可通过诸如调整像素开口率、像素密度等来改变显示过渡区13中各显示过渡单元区的单位显示面积，和/或，通过调整显示过渡区13驱动电路中TFT器件的沟道宽长比等技术方案，使得上述的显示过渡区13中的显示过渡单元区的亮度介于第一显示区11的亮度与第二显示区12的亮度之间，且使得第一显示区11与显示过渡区13之间的亮度值、第二显示区12与显示过渡区13之间的亮度值、以及各相邻过渡单元区之间的 亮度值在从第二显示区12向第一显示区11的延伸方向上呈均匀的变化，以进一步的改善相邻显示区之间的亮度差界线。
图2是一个可选的实施例中在主显示区中设置有显示过渡区的示意图。如图2所示，显示面板20具有主显示区21和第二显示区22，且该第二显示区22可被主显示区21部分地(如图2所示)或全部地(未示出)围绕。可选地，该第二显示区也可不被主显示区围绕。主显示区21可包括显示过渡区211和第一显示区212，即显示过渡区211与第一显示区212为形成在同一基板上的相同类型的显示区。因此，第二显示区22和第一显示区212是不同类型的显示区，且其驱动方式、器件结构等均具有较大的差异。如果将第二显示区22和第一显示区212直接相邻设置，则会使得其作为同一屏幕的全面屏显示时，两者之间会存在一定的亮度差。在如图2所示的实施例中，当第一显示区212的亮度高于第二显示区22时，显示过渡区211则可在第一显示区212的基础上，采用如图1中所述的各显示过渡单元区的设置方式，通过诸如减小像素开口率、降低像素密度、减小像素驱动电路中TFT器件的沟道宽长比等，来降低显示过渡区211的亮度，以使得作为同一屏幕显示时，显示过渡区211的亮度介于第二显示区22的亮度与第一显示区212的亮度之间，且显示过渡区211中的相邻的显示过渡单元区(图2未示出)之间的各亮度也呈均匀的变化，以进一步的改善相邻显示区之间的亮度差界线。当第一显示区212的亮度低于第二显示区22时，显示过渡区211则可在第一显示区212的基础上，通过诸如增大像素开口率、增大像素密度、增大像素驱动电路中TFT器件的沟道宽长比等，来提升显示过渡区211的亮度，且相邻的显示过渡单元区之间的亮度也呈均匀的变化，以使得作为同一屏幕显示时，显示过渡区211的亮度介于第二显示区22的亮度与第一显示区212的亮度之间。
图3是一个可选的实施例中在副显示区中设置显示过渡区的示意图。如图3所示，显示面板30具有第一显示区31和副显示区32，且该副显示区32可被第一显示区31部分地(如图3所示)或全部地(未示出)围绕，同时该副显示区32也可不被第一显示区31围绕。副显示区32可包括第二显示区321和显示过渡区322，即显示过渡区322与第二显示区321为形成在同一基板上的相同类型 的显示区。因此，由于第一显示区31和第二显示区321是不同类型的显示区，且其驱动方式、器件结构等均具有较大的差异，进而会使得其作为同一屏幕进行全面屏显示时，两者之间会存在一定的亮度差。例如，如图3所示，当第二显示区321的亮度高于第一显示区31时，显示过渡区322则可在第二显示区321的基础上，通过诸如减小像素开口率、降低像素密度、减小像素驱动电路中TFT器件的沟道宽长比等，来降低显示过渡区322的亮度，以使得作为同一屏幕显示时，显示过渡区322的亮度介于第一显示区31的亮度与第二显示区321的亮度之间，且设置在显示过渡区322中的相邻的显示过渡单元区(图3未示出)，可参考图1设置的显示过渡单元区之间的各亮度也在从第一显示区31到第二显示区321的方向上呈均匀的变化。当第二显示区321的亮度低于第一显示区31时，显示过渡区322则可在第二显示区321的基础上，通过诸如增大像素开口率、增大像素密度、增大像素驱动电路中TFT器件的沟道宽长比等，采用如图1中各显示过渡单元区的设置方式，来提升显示过渡区322的亮度，且位于该显示过渡区322中相邻的显示过渡单元区之间的各亮度也呈均匀的变化(可参考图1中所设置的显示过渡单元区131、132、133、134)，以使得作为同一屏幕显示时，显示过渡区322的亮度介于第一显示区31的亮度与第二显示区321的亮度之间。
在一个可选的实施例中，第一显示区中均可设置诸如有机发光二极管或液晶显示(Liquid Crystal Display，简称LCD)等透明显示面板。第二显示区中可设置PMOLED的显示区或类AMOLED的显示区，而第一显示区中可设置AMOLED的显示区。
在一个可选的实施例中，上述的显示面板可为透明显示屏。该显示面板可包括多个膜层。为了确保该显示面板具有“透明”的性能，各膜层的透光率均可大于90％，而所述显示面板的透光率可大于70％。例如，各膜层的透光率为91％、93％、95％、97％、98％或99％等，而显示面板的透光率为70％、75％、80％、85％、90％或95％等。上述的透光率具体可根据实际需求及工艺能力而定，同时显示面板中的像素定义层及平坦化层也可采用高透光率的材质，只要上述的各个膜层能确保显示面板透明即可。
在另一个可选的实施例中，上述具有透明性能的显示面板中的像素定义层的材质可为阻光材料，以用于对形成在像素定义层上的像素开口中的显示模组所形成的衍射进行改善。同时，为了确保该显示面板的透明度，上述显示面板中各个膜层的透光率均可大于90％(如90％、92％、94％、95％或98％等)，而整个显示面板的透光率要大于70％(如70％、76％、80％、88％或98％等)。另外，显示面板中的导电膜层的材质可为ITO、IZO、掺杂有Ag的ITO或掺杂有Ag的IZO等材质，而透明显示面板中的绝缘膜层的材质可为SiO 2、SiN x和Al 2O 3等透明绝缘材料，以进一步确保显示面板的透光率。
图4是一个可选的实施例中TFT器件的沟道示意图。如图4所示并参考图2，在一个可选的实施例中，主显示区21可为AMOLED显示区，第二显示区22则可为PMOLED显示区。由于OLED器件的亮度与驱动TFT器件的输出电流成正向关系，且TFT器件的输出电流I oled公式为：
Figure PCTCN2019090212-appb-000001
其中，μ n为驱动TFT的电子迁移率，C ox为单位面积栅氧化层电容，V GS为栅极源极电压，V th为阈值电压，W为驱动TFT器件沟道40的宽度，L为驱动TFT器件沟道40的长度。
如图2和4所示，基于上述的电流公式可知，可通过增大驱动TFT器件沟道40的宽度W，和/或减小驱动TFT器件沟道40的长度，来提升驱动TFT器件的沟道宽长比，继而来提升驱动TFT器件的输出电流，以达到提升显示区亮度的目的。相应地，也可通过减小驱动TFT器件沟道40的宽度W，和/或增大驱动TFT器件沟道40的长度，来降低驱动TFT器件的沟道宽长比，继而来降低驱动TFT器件的输出电流，以达到降低显示区亮度的目的。即通过改变驱动TFT器件的沟道宽长比(W/L)，来改变驱动TFT器件的输出电流，从而在相同数据信号的前提下，使得显示过渡区211的亮度介于第二显示区22的亮度与第一显示区212的亮度之间。
在一个可选的实施例中，上述实施例中的显示过渡区为AMOLED显示区时，该显示过渡区中设置有至少一行或至少一列子像素区。当显示过渡区为PMOLED显示区时，则该显示过渡区中设置有至少一行或至少一列像素单元区，且上述的像素单元区为由同一个阳极结构所驱动的像素区，以确保显示过渡区能够正常的显示。
图5是一个实施例中显示终端的结构示意图。如图5所示，本申请的一示例性实施例还提供了一种显示终端50，该显示终端50可包括设备本体52和显示面板54。显示面板54设置在设备本体52上，且该设备本体52与显示面板54相互电连接。其中，显示面板54可为上述任一实施例中所阐述的显示面板，用以根据由设备本体52所发送的数据或信号进行显示，和/或根据用户的操控使该设备本体52执行操作。
参见图6，示出了图5中所示的设备本体52的结构示意图。具体地，上述的设备本体52上可开设有非器件区522和器件区524。在器件区524中可设置有诸如摄像头526或光线传感器等感光器件。继续参见图7，示出了图5中所示显示面板54的结构示意图，上述的显示面板54可包括第二显示区544(或副显示区)和第一显示区542(或主显示区)。参见图5～7所示，当显示面板54贴合固定在设备本体52上时，第一显示区(如开槽区)544与图6所示的器件区524对应地相贴合，以使得感光器件能够透过该第二显示区544，接收并感测外部光线60。其中，上述的显示面板54为本申请任一实施例中的显示面板时，通过在第一显示区542中临近第二显示区544的位置处设置显示过渡区(图中未示出)，以使得第一显示区542、显示过渡区和第二显示区544在作为同一屏幕显示时，其显示亮度能够呈现渐次变化，且设置在显示过渡区中的显示过渡单元区的亮度也呈渐次变化，以使得相邻显示区之间的亮度能够呈现均匀的变化，从而有效避免因相邻显示过渡单元区之间的各亮度的差别过大而造成诸如黑线的缺陷等，进而提升显示终端中显示屏的显示效果。
另外，如图7所示，为了提升上述的第二显示区544的透光性能，可将第二显示区544中的显示面板设置为透明的显示面板。这样，在感光器件工作时，可以使得第二显示区544处于非显示状态，以提升第二显示区544的透光率。
在另一个可选的实施例中，第二显示区544中的显示面板为PMOLED显示面板或类AMOLED显示面板。第一显示区542中的显示面板为AMOLED显示面板。其中，类AMOLED显示面板是指其像素电路仅包含一个开关元件(即驱动TFT)，并且无电容结构。类AMOLED显示面板的其他结构与AMOLED显示面板相同。下面将结合图8，以第二显示区544中的显示面板为类AMOLED显示面板为例进行说明。
图8为一实施例中的类AMOLED显示面板的剖视图。该类AMOLED显示面板包括基板610以及设置于基板610上的像素电路620，多个像素电路620形成TFT阵列。像素电路620上设置有第一电极层，第一电极层包括多个第一电极630，第一电极630与像素电路620一一对应。在本实施例中，第一电极630为阳极。类AMOLED显示面板还包括像素限定层640，设置于第一电极630之间，以限定像素显示区域。像素限定层640上具有多个开口，开口内设置有发光结构层650，以形成多个子像素。子像素与第一电极630一一对应。发光结构层650的上方设置有第二电极660。第二电极660为阴极，该阴极为面电极，也就是由整面的电极材料形成的整面电极。像素电路620中设置有扫描线、数据线和TFT开关元件。扫描线和数据线均与TFT开关元件连接。扫描线控制TFT开关元件的开启和关闭，数据线在像素开启时，为第一电极630提供驱动电流，以控制子像素发光。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本申请的保护范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请的保护范围应以所附权利要求为准。

Claims (20)

  1. 一种显示面板，包括第一显示区、显示过渡区和第二显示区，所述第一显示区与所述第二显示区的类型相异，且所述第一显示区和所述第二显示区位于所述显示过渡区相对的两侧，
    所述显示过渡区包括多个显示过渡单元区，以及
    在从所述第一显示区到所述第二显示区的方向上，所述多个显示过渡单元区依次相邻设置，并且所述第一显示区、所述显示过渡单元区和所述第二显示区在作为同一屏幕显示时各自的亮度值依次增大或减小，且各所述显示过渡单元区的亮度不同。
  2. 如权利要求1所述的显示面板，其中，所述第一显示区与所述显示过渡区的类型相同。
  3. 如权利要求2所述的显示面板，其中，在作为同一屏幕显示时，所述第一显示区的亮度值大于所述第二显示区的亮度值，所述显示过渡区的单位显示面积小于所述第一显示区的单位显示面积。
  4. 如权利要求3所述的显示面板，其中，在从所述第一显示区到所述第二显示区的方向上，所述显示过渡单元区的单位显示面积依次减小。
  5. 如权利要求3所述的显示面板，其中，所述显示过渡区的开口率小于所述第一显示区的像素开口率。
  6. 如权利要求5所述的显示面板，其中，在从所述第一显示区到所述第二显示区的方向上，所述显示过渡单元区的像素开口率依次减小。
  7. 如权利要求3所述的显示面板，其中，所述显示过渡区的像素密度小于所述第一显示区的像素密度。
  8. 如权利要求7所述的显示面板，其中，在从所述第一显示区到所述第二显示区的方向上，所述显示过渡单元区的像素密度依次减小。
  9. 如权利要求3所述的显示面板，其中，所述显示面板中设置有第一驱动TFT和多个第二驱动TFT，且所述第一驱动TFT的沟道宽长比大于所述第二驱动TFT的沟道宽长比，所述第一驱动TFT为驱动所述第一显示区域的像素驱动电路中的驱动TFT，所述第二驱动TFT为驱动各所述显示过渡单元区的像素驱 动电路中的驱动TFT。
  10. 如权利要求9所述的显示面板，其中，在从所述第一显示区到所述第二显示区的方向上，用于驱动所述显示过渡单元区的各所述第二驱动TFT的沟道宽长比依次减小。
  11. 如权利要求1所述的显示面板，其中，所述第二显示区与所述显示过渡区的类型相同。
  12. 如权利要求1所述的显示面板，其中，在作为同一屏幕显示时，相邻所述显示过渡单元区之间的亮度差大于1nit。
  13. 如权利要求1所述的显示面板，其中，所述第一显示区为AMOLED显示区，并且所述第二显示区为PMOLED显示区或类AMOLED显示区。
  14. 如权利要求13所述的显示面板，其中，当所述显示过渡区为AMOLED显示区时，所述显示过渡区中设置有至少一行或至少一列子像素区。
  15. 如权利要求13所述的显示面板，其中，所述第二显示区为被所述第一显示区部分地或全部地围绕的区域。
  16. 如权利要求13所述的显示面板，其中，所述第二显示区为不被所述第一显示区围绕的区域。
  17. 如权利要求1所述的显示面板，其中，所述第一显示区为PMOLED显示区，并且所述第二显示区为AMOLED显示区。
  18. 如权利要求17所述的显示面板，其中，当所述显示过渡区为PMOLED显示区时，所述显示过渡区中设置有至少一行或至少一列像素单元区，且所述像素单元区为同一个阳极结构所驱动的像素区。
  19. 一种显示终端，包括：
    设备本体，具有器件区；
    如权利要求1～18中任意一项所述的显示面板，设置在所述设备本体上，
    所述器件区位于所述第二显示区下方，且所述器件区中设置有感光器件，所述感光器件透过所述第二显示区接收光线。
  20. 如权利要求19所述的显示终端，其中，所述感光器件包括摄像头和/或感应器。
PCT/CN2019/090212 2018-11-07 2019-06-05 显示屏及集成有该显示屏的显示装置、盖板 WO2020093692A1 (zh)

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