WO2021120761A1 - 显示面板及其驱动方法、显示装置 - Google Patents

显示面板及其驱动方法、显示装置 Download PDF

Info

Publication number
WO2021120761A1
WO2021120761A1 PCT/CN2020/117241 CN2020117241W WO2021120761A1 WO 2021120761 A1 WO2021120761 A1 WO 2021120761A1 CN 2020117241 W CN2020117241 W CN 2020117241W WO 2021120761 A1 WO2021120761 A1 WO 2021120761A1
Authority
WO
WIPO (PCT)
Prior art keywords
sub
pixels
pixel
display
area
Prior art date
Application number
PCT/CN2020/117241
Other languages
English (en)
French (fr)
Inventor
楼均辉
胡凤章
Original Assignee
昆山国显光电有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 昆山国显光电有限公司 filed Critical 昆山国显光电有限公司
Publication of WO2021120761A1 publication Critical patent/WO2021120761A1/zh
Priority to US17/591,247 priority Critical patent/US20220157898A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • 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]
    • 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
    • H10K50/818—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
    • H10K59/10—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
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/10—Transparent electrodes, e.g. using graphene
    • H10K2102/101—Transparent electrodes, e.g. using graphene comprising transparent conductive oxides [TCO]
    • H10K2102/102—Transparent electrodes, e.g. using graphene comprising transparent conductive oxides [TCO] comprising tin oxides, e.g. fluorine-doped SnO2
    • 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
    • H10K2102/10—Transparent electrodes, e.g. using graphene
    • H10K2102/101—Transparent electrodes, e.g. using graphene comprising transparent conductive oxides [TCO]
    • H10K2102/103—Transparent electrodes, e.g. using graphene comprising transparent conductive oxides [TCO] comprising indium oxides, e.g. ITO
    • 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

Definitions

  • the application relates to the field of display, and in particular to a display panel, a driving method thereof, and a display device.
  • a notch or hole can be provided on the display screen, so that external light can enter the photosensitive element located under the screen through the notch or hole on the screen.
  • a display screen is not a full screen in the true sense, and cannot be displayed in all areas of the entire screen. For example, the corresponding area of the front camera cannot display pictures.
  • a first aspect of the present application provides a display panel having a first display area and a second display area, the light transmittance of the first display area is greater than the light transmittance of the second display area, and the display panel includes: an array substrate;
  • the light-emitting layer is disposed on the array substrate.
  • the light-emitting layer includes a first density distribution area of sub-pixels, a second density distribution area of sub-pixels, and a third density distribution area of sub-pixels.
  • the first density distribution area of sub-pixels is arranged corresponding to the first display area
  • the second density distribution area of the sub-pixels is arranged corresponding to the second display area
  • the third density distribution area of the sub-pixels is on at least one of the first display area and the second display area, and is separated from the first display area and the second display area.
  • the boundary line is set adjacently;
  • the first distribution density of sub-pixels corresponding to the first density distribution area of sub-pixels is less than the third distribution density of sub-pixels corresponding to the third density distribution area of sub-pixels, and the third distribution density of sub-pixels is less than that corresponding to the second density distribution area of sub-pixels.
  • the second distribution density of sub-pixels is less than that corresponding to the second density distribution area of sub-pixels.
  • a second aspect of the present application provides a display device, which includes the display panel of any one of the above-mentioned first aspects.
  • a third aspect of the present application provides a method for driving a display panel for driving the display panel according to any one of the embodiments of the first aspect, and the method includes:
  • the first gamma curve is used to drive the sub-pixels in the first density distribution area of the sub-pixels to emit light
  • the second gamma curve is used to drive the sub-pixels in the second density distribution area of the sub-pixels and the sub-pixels in the third density distribution area.
  • the sub-pixels emit light, so that when the display panel displays a pure-color image, the light-emitting current of the sub-pixels in the third density distribution area of the sub-pixels is the same as the light-emitting current of the sub-pixels in the second density distribution area of the sub-pixels of the same color.
  • the light transmittance of the first display area is greater than the light transmittance of the second display area, so that the display panel can integrate photosensitive components on the back of the first display area, so as to realize the screen of the photosensitive components of the camera.
  • the first display area can display pictures, which increases the display area of the display panel and realizes the full-screen design of the display device.
  • the sub-pixel third density distribution area is on at least one of the first display area and the second display area, and is adjacent to the boundary line of the first display area and the second display area, and
  • the third distribution density of the sub-pixels corresponding to the third density distribution area of the sub-pixels is between the second distribution density of the sub-pixels corresponding to the second density distribution area of the sub-pixels and the first distribution density of the sub-pixels corresponding to the first density distribution area of the sub-pixels
  • the display brightness of the third sub-pixel can be controlled to be the same as the display brightness of the second sub-pixel of the same color, so that the display panel displays a higher pixel density in the picture
  • the boundary between the second display area of (Pixels Per Inch, PPI) and the first display area with a lower PPI is blurred to avoid obvious bright or dark lines on the boundary between the two display areas and improve the display effect.
  • Fig. 1 shows a schematic structural diagram of a display panel according to an embodiment of the present application
  • Fig. 2 shows a partial enlarged schematic top view of the Q area in Fig. 1 provided by an example
  • Fig. 3 shows a partial enlarged schematic top view of the Q area in Fig. 1 provided by the comparison example of Fig. 2;
  • FIG. 4 shows a partial enlarged schematic top view of the area Q in FIG. 1 provided by another example
  • FIG. 5 shows a schematic top view of a display device according to an embodiment of the present application
  • Fig. 6 shows a cross-sectional view along the line A-A in Fig. 5 provided by an example
  • FIG. 7 shows a schematic flowchart of a driving method of a display panel according to an embodiment of the present application.
  • a light-transmitting display area may be provided on the above-mentioned electronic device, and the photosensitive component may be arranged on the back of the light-transmitting display area, and a full-screen display of the electronic device can be realized under the condition of ensuring the normal operation of the photosensitive component.
  • the embodiments of the present application provide a display panel, a driving method of the display panel, and a display device.
  • the following will describe the display panel, the driving method of the display panel, and the embodiments of the display device with reference to the accompanying drawings.
  • An embodiment of the present application provides a display panel, which may be an Organic Light Emitting Diode (OLED) display panel.
  • OLED Organic Light Emitting Diode
  • FIG. 1 shows a schematic structural diagram of a display panel according to an embodiment of the present application
  • FIG. 2 shows an example of a partial enlarged view of the Q area in FIG. 1.
  • the display panel 100 has a first display area AA1 and a second display area AA2, and the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA2.
  • the light transmittance of the first display area AA1 is greater than or equal to 15%.
  • the light transmittance of at least part of the functional film layers of the display panel 100 in this embodiment is greater than 80%. Even at least part of the functional film has a light transmittance greater than 90%.
  • the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA2, so that the display panel 100 can integrate photosensitive components on the back of the first display area AA1 to realize, for example, a camera
  • the light-sensitive components are integrated under the screen, and the first display area AA1 can display images, which increases the display area of the display panel 100 and realizes the full-screen design of the display device.
  • the display panel 100 includes an array substrate 10 and a light-emitting layer 20.
  • the light-emitting layer 20 is disposed on the array substrate 10.
  • the light-emitting layer 20 includes a sub-pixel first density distribution area 01, a sub-pixel second density distribution area 02, and a sub-pixel third density distribution area 03.
  • the sub-pixel first density distribution area 01 is set corresponding to the first display area AA1
  • the sub-pixel second density distribution area 02 is set corresponding to the second display area AA2
  • the sub-pixel third density distribution area 03 is located in the first display area AA1 and the second display area.
  • the first distribution density of the sub-pixels corresponding to the first density distribution area 01 of the sub-pixels is smaller than the third distribution density of the sub-pixels corresponding to the third density distribution area 03 of the sub-pixels, and the third distribution density of the sub-pixels is smaller than the second density distribution area 02 of the sub-pixels.
  • the second distribution density of sub-pixels is smaller than the third distribution density of the sub-pixels corresponding to the third density distribution area 03 of the sub-pixels.
  • the first distribution density of sub-pixels, the second distribution density of sub-pixels, and the third distribution density of sub-pixels may refer to pixel densities corresponding to each of the three regions.
  • the sub-pixel third density distribution area 03 is not an area outside the first display area AA1 and the second display area AA2, but belongs to the first display area AA1 and/or the second display area AA2 Part of it, and adjacent to the dividing line of the first display area AA1 and the second display area AA2.
  • the first display area AA1 is a rectangular area. Bright stripes are easily formed at the boundary line on the left side of the first display area AA1 and the second display area AA2.
  • the first display area AA1 and the second display area AA2 are on the right side. It is easy to form dark stripes at the dividing line.
  • one sub-pixel third density distribution area 03 is provided at the left and right dividing line, wherein the third density distribution area 03 of the sub-pixel on the left is in the second display area AA2, and the third density distribution area of the sub-pixel on the right is third The density distribution area 03 is in the first display area AA1.
  • the sub-pixels in the first display area AA1 and the second display area AA2 are arranged with the same sub-pixel arrangement rule, that is, the sub-pixel first density distribution area 01 and the sub-pixel second density distribution
  • the sub-pixel arrangement rules in the area 02 and the sub-pixel third density distribution area 03 are the same.
  • virtual sub-pixels are arranged in the sub-pixel first density distribution area 01 and the sub-pixel third density distribution area 03, and the distribution density of the virtual sub-pixels in the sub-pixel first density distribution area 01 is greater than the sub-pixel third density
  • the virtual sub-pixel can be understood as that, under the sub-pixel arrangement rule, the virtual sub-pixel occupies the position of the real sub-pixel, that is, the position occupied by the virtual sub-pixel is a non-light-emitting area.
  • an embodiment of the present application provides a comparative example diagram of FIG. 2.
  • a column of sub-pixels in the second display area AA2 at the left boundary line of the first display area AA1 and the second display area AA2 shown in FIG. 3 may be halved to obtain the left side shown in FIG.
  • the third density distribution area 03 of the sub-pixels on the side Further, on the position occupied by a column of virtual sub-pixels in the first display area AA1 at the right boundary line of the first display area AA1 and the second display area AA2 shown in FIG. 3, some sub-pixels are set to obtain FIG. 2
  • the sub-pixel third density distribution area 03 on the right is shown.
  • the sub-pixel third density distribution area 03 is on at least one of the first display area AA1 and the second display area AA2, and is adjacent to the boundary line of the first display area AA1 and the second display area AA2.
  • the third distribution density of the sub-pixels corresponding to the third density distribution area 03 of the sub-pixels is between the second distribution density of the sub-pixels corresponding to the second density distribution area 02 of the sub-pixels and the second distribution density of the sub-pixels corresponding to the first density distribution area 01 of the sub-pixels.
  • the pixel density in the low PPI area is low, and the brightness of a single sub-pixel driven by the first pixel circuit is greater than that in the high PPI area.
  • the sub-pixels in the third density distribution area are used to drive the sub-pixels in the high PPI area.
  • the second pixel circuit drive can weaken the border bright or dark lines, blur the boundary between the second display area with a higher PPI and the first display area with a lower PPI in the display screen of the display panel 100, and avoid the two displays Obvious bright or dark lines appear on the dividing line of the area, which improves the display effect.
  • the sub-pixel first density distribution area 01 includes a plurality of first sub-pixels 110
  • the sub-pixel second density distribution area 02 includes a plurality of second sub-pixels 150
  • the sub-pixel third density distribution area 03 includes a plurality of third sub-pixels 130.
  • the sub-pixel third density distribution area 03 is located between the sub-pixel first density distribution area 01 And the sub-pixel second density distribution area 02.
  • a row of third sub-pixels 130 is arranged in the vertical direction of the width direction of the display panel 100.
  • the first display area AA1 is a rectangular area, and each sub-pixel third density distribution area 03 on the left and right sides includes only one column of third sub-pixels 130.
  • the third density distribution area 03 of the sub-pixels on the left originally corresponds to the second distribution density of the sub-pixels, that is, the second sub-pixels 150 are originally distributed in the third density distribution area 03 of the sub-pixels on the left.
  • the second sub-pixels 150 distributed in the third density distribution area 03 of the left sub-pixels can be halved to obtain the third sub-pixels with the third distribution density.
  • the sub-pixel 130 can blur the bright line that exists at the left boundary.
  • the third density distribution area 03 of the right sub-pixel originally corresponds to the first distribution density of the sub-pixel, that is, there is no sub-pixel in the third density distribution area 03 of the sub-pixel on the right, and there will be a dark line at the dividing line.
  • the third sub-pixel 130 can be added to the third density distribution area 03 of the right sub-pixels, and then the third sub-pixel 130 arranged with the third distribution density of the sub-pixels can be obtained, which can make the right boundary line
  • the dark lines that exist everywhere are blurred.
  • only one column of sub-pixels can be changed to obtain the sub-pixel third density distribution area 03, which reduces the process difficulty and complexity, and the sub-pixel third density distribution area 03 includes a row of third sub-pixels 130, which can The dividing line between the first display area AA1 and the second display area AA2 is blurred to the greatest extent.
  • the display panel 100 further includes a first dummy sub-pixel 120 and a second dummy sub-pixel 140.
  • the plurality of first dummy sub-pixels 120 are located in the first density distribution area 01 of the sub-pixels.
  • the plurality of second dummy sub-pixels 140 are located in the third density distribution area 03 of the sub-pixels.
  • the first pixel arrangement structure formed by the first sub-pixel 110 and the first dummy sub-pixel 120 is the same as the second pixel arrangement structure formed by the second sub-pixel 150.
  • the third pixel arrangement structure jointly formed by the third sub-pixel 130 and the second dummy sub-pixel 140 is the same as the second pixel arrangement structure.
  • the area corresponding to the first dummy sub-pixel 120 and the second dummy sub-pixel 140 does not have a pixel structure, that is, the area corresponding to the dummy sub-pixel does not emit light, and the distance between adjacent first sub-pixels 110
  • the distance between the adjacent third sub-pixel 130 and the adjacent second sub-pixel 150 is greater than the distance between the adjacent second sub-pixel 150.
  • the first sub-pixel 110 and the second sub-pixel 150 respectively have multiple different colors.
  • the sub-pixels of different colors are distinguished by different filling patterns, and the sub-pixels of the same color are drawn using the same filling pattern.
  • the first sub-pixel 110 may include a red first sub-pixel 110, a green first sub-pixel 110, and a blue first sub-pixel 110.
  • the second sub-pixel 150 may include a red second sub-pixel 150, a green second sub-pixel 150, and a blue second sub-pixel 150.
  • the third sub-pixel 130 may include a red third sub-pixel 130, a green third sub-pixel 130, and a blue third sub-pixel 130, or the third sub-pixel 130 may include third sub-pixels 130 of the same color. .
  • one red first sub-pixel 110, one green first sub-pixel 110, and one blue first sub-pixel 110 in the first density distribution area 01 of the sub-pixels form the first pixel light-emitting unit U1 .
  • One red second sub-pixel 150, one green second sub-pixel 150, and one blue second sub-pixel 150 in the sub-pixel second density distribution area 02 form a second pixel light-emitting unit U2.
  • a third sub-pixel 130 of the first color in the sub-pixel third density distribution area 03, a second sub-pixel 150 of the second color in the sub-pixel second density distribution area 02, and a second sub-pixel of the third color in the sub-pixel second density distribution area 02 The pixel 150 forms a third pixel light emitting unit U3.
  • each pixel light-emitting unit can be adjusted according to the design requirements of the display panel 100, and thus are not limited to the examples of the above-mentioned embodiments.
  • the arrangement of the sub-pixels in the light-emitting unit of each pixel is not limited to the example of the above-mentioned embodiment.
  • the actual PPI of the first display area AA1 can be reduced, of which only It is necessary to connect the sub-pixels capable of light-emitting display with the driving signal lines, which reduces the number of driving signal lines in the first display area AA1, and facilitates the improvement of the light transmittance of the first display area AA1.
  • first pixel arrangement structure formed by the first sub-pixel 110 and the first dummy sub-pixel 120 is the same as the second pixel arrangement structure formed by the second sub-pixel 150
  • third sub-pixel 130 and the second dummy sub-pixel 130 The third pixel arrangement structure jointly formed by the pixels 140 is the same as the second pixel arrangement structure, so that the display effect of the two display areas is more uniform, further avoiding a clear dividing line between the two display areas, and improving the display effect.
  • first sub-pixels 110 are arranged with first dummy sub-pixels 120 spaced apart, so that various colors in the first density distribution area 01 of the sub-pixels
  • the first sub-pixels 110 can be more evenly distributed, which improves the color uniformity of the display.
  • the third pixel arrangement structure at least any two third sub-pixels 130 are arranged with second dummy sub-pixels 140 spaced apart. This enables the third sub-pixels 130 of various colors in the sub-pixel third density distribution area 03 to be more uniformly distributed, and the color uniformity of the display is improved.
  • the first sub-pixels 110 and the first dummy sub-pixels 120 are arranged in an array to form multiple rows and/or multiple columns. In some embodiments, as shown in FIG. 2, among the first sub-pixels 110 in adjacent columns, the first sub-pixels 110 of the same color are located in different rows. Or, among the first sub-pixels 110 in adjacent rows, the first sub-pixels 110 of the same color are located in different columns.
  • the first sub-pixels 110 of various colors in the sub-pixel first density distribution area 01 are further uniformly distributed, and the color uniformity of the display is further improved.
  • the first pixel arrangement structure formed by the first sub-pixel 110 and the first dummy sub-pixel 120 is a standard RGB sub-pixel arrangement structure.
  • the colors of the first sub-pixels 110 in the same row or the same column are the same.
  • the first sub-pixels 110 of various colors in the sub-pixel first density distribution area 01 are further uniformly distributed, and the color uniformity of the display is further improved.
  • the third pixel arrangement structure formed by the sub-pixels 130 and the second dummy sub-pixel 140 is a standard RGB sub-pixel arrangement structure.
  • the sub-pixel third density distribution area 03 includes only one row of third sub-pixels 130, and the color of the third sub-pixel 130 is different from the colors of the adjacent first sub-pixel 110 and the second sub-pixel 150.
  • the sub-pixels of various colors at the boundary between the first display area AA1 and the second display area AA2 are further uniformly distributed, the color uniformity of the display is further improved, and the first display area AA1 and the second display area AA2 are further blurred. Dividing line.
  • the display panel 100 further includes a first pixel circuit and a second pixel circuit (not shown in the figure). Both the first pixel circuit and the second pixel circuit are located in the second display area AA2.
  • the first pixel circuit is electrically connected to the first sub-pixel 110 for driving the first sub-pixel 110 to display.
  • the second pixel circuit is electrically connected to the second sub-pixel 150 and the third sub-pixel 130 for driving the second sub-pixel 150 and the third sub-pixel 130 to display.
  • the circuit structure of the first pixel circuit is any one of a 2T1C circuit, a 7T1C circuit, a 7T2C circuit, or a 9T1C circuit.
  • 2T1C circuit refers to a pixel circuit including 2 thin film transistors (T) and 1 capacitor (C) in the pixel circuit.
  • Other "7T1C circuit”, “7T2C circuit”, “9T1C circuit” and so on are analogized in this order.
  • the first pixel circuit 140 for driving the display of the first sub-pixel 110 is located in the second display area AA2, thereby reducing the wiring structure in the first display area AA1, thereby increasing the first display area The light transmittance of AA1.
  • the circuit structure of the second pixel circuit may be any of a 2T1C circuit, a 7T1C circuit, a 7T2C circuit, or a 9T1C circuit.
  • the circuit structures of the pixel circuits of the second sub-pixel 150 and the third sub-pixel 130 are the same.
  • the first sub-pixel The brightness of the pixel 110 is higher than the brightness of the second sub-pixel 150.
  • a row of sub-pixels in the second display area AA2 and adjacent to the first display area AA1 is halved, and
  • the adjacent right border of the first display area AA1 and the second display area AA2 adds sub-pixels to the position occupied by a column of virtual sub-pixels in the first display area AA1 and adjacent to the second display area AA2 to obtain the third Sub-pixels, thereby forming a sub-pixel third density distribution area 03.
  • the display brightness of the third sub-pixel 130 can be controlled to be the same as the display brightness of the second sub-pixel 150 of the same color, and the second sub-pixel 150 can be further blurred.
  • the first sub-pixel 110 includes a first electrode, a light emitting structure, and a second electrode that are sequentially stacked.
  • One of the first electrode and the second electrode is an anode, and the other is a cathode.
  • the first electrode is an anode and the second electrode is a cathode as an example for description.
  • the light-emitting structure may include an OLED light-emitting layer.
  • the OLED light-emitting layer may also include at least one of a hole injection layer, a hole transport layer, an electron injection layer, or an electron transport layer.
  • the first electrode is a light-transmitting electrode.
  • the first electrode includes an indium tin oxide (Indium Tin Oxide, ITO) layer or an indium zinc oxide layer.
  • the first electrode is a reflective electrode, and includes a first light-transmitting conductive layer, a reflective layer on the first light-transmitting conductive layer, and a second light-transmitting conductive layer on the reflective layer.
  • the first light-transmitting conductive layer and the second light-transmitting conductive layer can be ITO, indium zinc oxide, etc.
  • the reflective layer can be a metal layer, for example, made of silver.
  • the second electrode includes a magnesium-silver alloy layer. In some embodiments, the second electrode may be interconnected as a common electrode.
  • the projection of each light-emitting structure in the direction perpendicular to the display panel is composed of one first graphic unit or the splicing of two or more first graphic units.
  • the first graphic unit includes a circle or an ellipse. At least one selected from the group consisting of, dumbbell, gourd, and rectangle.
  • the projection of each first electrode in the direction perpendicular to the display panel is composed of one second graphic unit or the splicing of two or more second graphic units, and the second graphic unit includes a circle or an ellipse. At least one selected from the group consisting of a shape, a dumbbell, a gourd, and a rectangle.
  • the display panel 100 may also include an encapsulation layer and a polarizer and a cover plate located above the encapsulation layer.
  • the cover plate may also be directly disposed above the encapsulation layer without a polarizer, or at least in the first display area AA1.
  • a cover plate is directly arranged above the encapsulation layer, and no polarizer is required to prevent the polarizer from affecting the light collection amount of the photosensitive element disposed under the first display area AA1.
  • a polarizer can also be disposed above the encapsulation layer of the first display area AA1.
  • An embodiment of the present application also provides a display device, which may include the display panel 100 of any one of the foregoing embodiments.
  • a display device which may include the display panel 100 of any one of the foregoing embodiments.
  • the following will take a display device of an embodiment as an example for description.
  • the display device includes the display panel 100 of the foregoing embodiment.
  • FIG. 5 shows a schematic top view of a display device according to an embodiment of the present application
  • FIG. 6 shows a cross-sectional view along the line A-A in FIG. 5.
  • the display panel 100 may be the display panel 100 of one of the above embodiments.
  • the display panel 100 has a first display area AA1, a second display area AA2, and surrounds the first display area AA1 and the second display area.
  • the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA2.
  • the display panel 100 includes a first surface S1 and a second surface S2 opposite to each other, wherein the first surface S1 is a display surface.
  • the display device further includes a photosensitive assembly 200, the photosensitive assembly 200 is located on the second surface S2 side of the display panel 100, and the photosensitive assembly 200 corresponds to the position of the first display area AA1.
  • the photosensitive component 200 may be an image capturing device for capturing external image information.
  • the photosensitive component 200 is a complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor, CMOS) image acquisition device.
  • the photosensitive component 200 may also be a charge-coupled device (CCD) Image acquisition devices and other forms of image acquisition devices. It can be understood that the photosensitive component 200 may not be limited to an image acquisition device.
  • the photosensitive component 200 may also be an infrared sensor, a proximity sensor, an infrared lens, a flood light sensor, an ambient light sensor, and a dot matrix projection. Light sensors such as devices.
  • the display device may also integrate other components on the second surface S2 of the display panel 100, such as a receiver, a speaker, and the like.
  • the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA2, so that the display panel 100 can integrate the photosensitive component 200 on the back of the first display area AA1 to realize, for example, an image
  • the photosensitive component 200 of the acquisition device is integrated under the screen, and the first display area AA1 can display images, which increases the display area of the display panel 100 and realizes a full-screen design of the display device.
  • the sub-pixel third density distribution area 03 is arranged on at least one of the first display area AA1 and the second display area AA2, adjacent to the boundary line of the first display area AA1 and the second display area AA2, and the sub-pixel third density
  • the third distribution density of the sub-pixels corresponding to the distribution area 03 is between the second distribution density of the sub-pixels corresponding to the second density distribution area 02 of the sub-pixels and the first distribution density of the sub-pixels corresponding to the first density distribution area 01 of the sub-pixels. Blur the dividing line between the second display area AA2 with higher PPI and the first display area AA1 with lower PPI in the display screen of the display panel, avoid obvious bright or dark lines on the dividing line of the two display areas, and improve display effect.
  • Fig. 7 shows a schematic flow chart of a method for driving a display panel according to an embodiment of the present application. As shown in Fig. 7, the method for driving a display panel includes the following steps:
  • S10 Obtain a first gamma curve corresponding to each color sub-pixel in the first density distribution area of the sub-pixel and a second gamma curve corresponding to each color sub-pixel in the sub-pixel second density distribution area.
  • the first gamma curve and the second gamma curve represent the corresponding relationship between the gamma voltage and the light-emitting current of the sub-pixels of the corresponding color.
  • the second gamma curve is used to drive the sub-pixels in the second density distribution area of the sub-pixels and the sub-pixels in the third density distribution area of the sub-pixels to emit light, so that the third sub-pixels emit light.
  • the display effect of the sub-pixels in the density distribution area is the same as the display effect of the sub-pixels in the second density distribution area of the sub-pixels of the same color, and when a pure color screen is displayed, the sub-pixels in the third density distribution area of the sub-pixels emit light
  • the current is the same as the light-emitting current of the sub-pixels in the second density distribution area of the sub-pixels of the same color, that is, the light-emitting brightness of the sub-pixels in the third density distribution area of the sub-pixels is the same as that of the sub-pixels in the second density distribution area of the sub-pixels of the same color.
  • the light-emitting brightness of the pixels is the same, which can further blur the boundary between the second display area AA2 with a higher PPI and the first display area AA1 with a lower PPI in the display screen of the display panel, and avoid the boundary line between the two display areas. Obvious bright or dark lines to improve the display effect.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Geometry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

本申请公开了一种显示面板及其驱动方法、显示装置。该显示面板具有第一显示区以及第二显示区，第一显示区的透光率大于第二显示区的透光率，显示面板包括阵列基板级发光层，设置于阵列基板上，发光层包括的子像素第一密度分布区域对应第一显示区设置，子像素第二密度分布区域对应第二显示区设置，子像素第三密度分布区域在第一显示区和第二显示区的至少一者上、相邻第一显示区和第二显示区的分界线设置；其中，子像素第一分布密度小于子像素第三分布密度，子像素第三分布密度小于子像素第二分布密度。根据本申请实施例提供的显示面板，能够避免两个显示区之间出现明显的分界线，提高显示效果。

Description

显示面板及其驱动方法、显示装置
相关申请的交叉引用
本申请要求享有于2019年12月16日提交的名称为“显示面板及其驱动方法、显示装置”的中国专利申请第201911292532.6号的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及显示领域，具体涉及一种显示面板及其驱动方法、显示装置。
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。
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、听筒以及红外感应元件等。现有技术中，可在显示屏上开槽(Notch)或开孔，使得外界光线可通过屏幕上的开槽或开孔进入位于屏幕下方的感光元件。但是，这样的显示屏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，例如其前置摄像头对应区域不能显示画面。
发明内容
本申请第一方面提供一种显示面板，其具有第一显示区以及第二显示区，第一显示区的透光率大于第二显示区的透光率，显示面板包括：阵列基板；
发光层，设置于阵列基板上，发光层包括子像素第一密度分布区域、子像素第二密度分布区域及子像素第三密度分布区域，子像素第一密度分布区域对应第一显示区设置，子像素第二密度分布区域对应第二显示区设置，子像素第三密度分布区域在第一显示区和第二显示区的至少一者上， 且与第一显示区和第二显示区的分界线相邻设置；
其中，子像素第一密度分布区域对应的子像素第一分布密度小于子像素第三密度分布区域对应的子像素第三分布密度，子像素第三分布密度小于子像素第二密度分布区域对应的子像素第二分布密度。
本申请的第二方面提供一种显示装置，其包括上述第一方面任一实施方式的显示面板。
本申请的第三方面提供一种显示面板的驱动方法，用于驱动如第一方面任一实施方式的显示面板，该方法包括：
获取子像素第一密度分布区域内各个颜色的子像素对应的第一伽马曲线以及子像素第二密度分布区域内各个颜色的子像素对应的第二伽马曲线；
利用第一伽马曲线驱动子像素第一密度分布区域内相应颜色的子像素发光，利用第二伽马曲线驱动子像素第二密度分布区域内的子像素及子像素第三密度分布区域内的子像素发光，使得显示面板显示纯色画面时，子像素第三密度分布区域内的子像素的发光电流与同一颜色的子像素第二密度分布区域内的子像素的发光电流相同。
根据本申请实施例的显示面板，第一显示区的透光率大于第二显示区的透光率，使得显示面板在第一显示区的背面可以集成感光组件，实现例如摄像头的感光组件的屏下集成，同时第一显示区能够显示画面，提高显示面板的显示面积，实现显示装置的全面屏设计。
根据本申请实施例的显示面板，子像素第三密度分布区域在第一显示区和第二显示区的至少一者上，且相邻第一显示区和第二显示区的分界线设置，且子像素第三密度分布区域对应的子像素第三分布密度介于子像素第二密度分布区域对应的子像素第二分布密度及子像素第一密度分布区域对应的子像素第一分布密度之间，用驱动第二子像素的第二像素电路驱动第三子像素，能够控制第三子像素的显示亮度与相同颜色的第二子像素的显示亮度相同，使显示面板显示画面中较高像素密度(Pixels Per Inch，PPI)的第二显示区与较低PPI的第一显示区之间的分界线模糊化，避免两个显示区的分界线出现明显的亮线或者暗线，提高显示效果。
附图说明
图1示出根据本申请实施例的显示面板的结构示意图；
图2示出一种示例提供的图1中Q区域的局部放大俯视示意图；
图3示出图2的对比示例提供的图1中Q区域的局部放大俯视示意图；
图4示出另一种示例提供的图1中Q区域的局部放大俯视示意图；
图5示出根据本申请实施例的显示装置的俯视示意图；
图6示出一种示例提供的图5中A-A向的剖面图；
图7示出根据本申请实施例的显示面板的驱动方法的流程示意图。
具体实施方式
下面将详细描述本申请的各个方面的特征和示例性实施例，为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及具体实施例，对本申请进行进一步详细描述。应理解，此处所描述的具体实施例仅意在解释本申请，而不是限定本申请。对于本领域技术人员来说，本申请可以在不需要这些具体细节中的一些细节的情况下实施。下面对实施例的描述仅仅是为了通过示出本申请的示例来提供对本申请更好的理解。
在诸如手机和平板电脑等电子设备上，需要在设置显示面板的一侧集成诸如前置摄像头、红外光传感器、接近光传感器等感光组件。在一些实施例中，可以在上述电子设备上设置透光显示区，将感光组件设置在透光显示区背面，在保证感光组件正常工作的情况下，实现电子设备的全面屏显示。
为提高透光显示区的透光率、便于布置透光显示区内子像素的像素驱动电路，往往需要将透光显示区甚至透光显示区周边的一部分显示区的PPI(Pixel per inch)降低，使其PPI低于显示面板主显示区的PPI，此时显示面板在显示时，往往会在较高PPI的显示区与较低PPI的显示区之间形成明显的显示分界线，影响显示效果。
为解决上述问题，本申请实施例提供了一种显示面板及显示面板的驱动方法、显示装置，以下将结合附图对显示面板及显示面板的驱动方法、显示装置的各实施例进行说明。
本申请实施例提供一种显示面板，该显示面板可以是有机发光二极管 (Organic Light Emitting Diode，OLED)显示面板。
图1示出根据本申请一种实施例的显示面板的结构示意图，图2示出一种示例的图1中Q区域的局部放大图。
如图1所示，显示面板100具有第一显示区AA1和第二显示区AA2，第一显示区AA1的透光率大于第二显示区AA2的透光率。
本文中，优选第一显示区AA1的透光率大于等于15％。为确保第一显示区AA1的透光率大于15％，甚至大于40％，甚至具有更高的透光率，本实施例中显示面板100的至少部分功能膜层的透光率大于80％，甚至至少部分功能膜层的透光率大于90％。
根据本申请实施例的显示面板100，第一显示区AA1的透光率大于第二显示区AA2的透光率，使得显示面板100在第一显示区AA1的背面可以集成感光组件，实现例如摄像头的感光组件的屏下集成，同时第一显示区AA1能够显示画面，提高显示面板100的显示面积，实现显示装置的全面屏设计。
如图1所示，显示面板100包括阵列基板10及发光层20。发光层20设置于阵列基板10上。发光层20包括子像素第一密度分布区域01、子像素第二密度分布区域02及子像素第三密度分布区域03。子像素第一密度分布区域01对应第一显示区AA1设置，子像素第二密度分布区域02对应第二显示区AA2设置，子像素第三密度分布区域03在第一显示区AA1和第二显示区AA2的至少一者上，且与第一显示区AA1和第二显示区AA2的分界线相邻设置。
子像素第一密度分布区域01对应的子像素第一分布密度小于子像素第三密度分布区域03对应的子像素第三分布密度，子像素第三分布密度小于子像素第二密度分布区域02对应的子像素第二分布密度。
在本申请中，子像素第一分布密度、子像素第二分布密度及子像素第三分布密度可以是指三个区域各自对应的像素密度。
在本申请实施例中，子像素第三密度分布区域03并非是第一显示区AA1与第二显示区AA2之外的区域，而是属于第一显示区AA1和/或第二显示区AA2的一部分，且与第一显示区AA1和第二显示区AA2的分界线 相邻。如图1所示，第一显示区AA1为矩形区域，第一显示区AA1与第二显示区AA2左侧的分界线处容易形成亮条纹，第一显示区AA1与第二显示区AA2右侧的分界线处容易形成暗条纹。示例性的，在左右的分界线处各设置一个子像素第三密度分布区域03，其中，左侧的子像素第三密度分布区域03在第二显示区AA2内，右侧的子像素第三密度分布区域03在第一显示区AA1内。
示例性的，如图2所示，以相同的子像素排布规律设置第一显示区AA1及第二显示区AA2的子像素，即子像素第一密度分布区域01、子像素第二密度分布区域02及子像素第三密度分布区域03内的子像素排布规律相同。进一步的，子像素第一密度分布区域01及子像素第三密度分布区域03内设置有虚拟子像素，且子像素第一密度分布区域01中的虚拟子像素的分布密度大于子像素第三密度分布区域03中的虚拟子像素的分布密度。虚拟子像素可以理解为，在该子像素排布规律下，虚拟子像素占用了真实子像素的位置，即在虚拟子像素占用的位置为非发光区域。
为了更好的理解本申请，如图3所示，本申请实施例提供一种图2的对比示例图。示例性的，可对图3所示的第一显示区AA1与第二显示区AA2的左侧分界线处的第二显示区AA2的一列子像素进行减半处理，得到图2所示的左侧的子像素第三密度分布区域03。进一步的，对图3所示的第一显示区AA1与第二显示区AA2的右侧分界线处的第一显示区AA1的一列虚拟子像素占用的位置上，设置一些子像素，得到图2所示的右侧的子像素第三密度分布区域03。
根据本申请实施例，子像素第三密度分布区域03在第一显示区AA1和第二显示区AA2的至少一者上，且相邻第一显示区AA1和第二显示区AA2的分界线设置，且子像素第三密度分布区域03对应的子像素第三分布密度介于子像素第二密度分布区域02对应的子像素第二分布密度及子像素第一密度分布区域01对应的子像素第一分布密度之间，低PPI区域的像素密度低，由第一像素电路驱动的单个子像素亮度大于高PPI区域，子像素第三密度分布区域的子像素由用于驱动高PPI区域子像素的第二像素电路驱动，能够弱化边界亮线或暗线，使显示面板100显示画面中较高PPI的 第二显示区与较低PPI的第一显示区之间的分界线模糊化，避免两个显示区的分界线出现明显的亮线或者暗线，提高显示效果。
如图1和图2所示，子像素第一密度分布区域01包括多个第一子像素110，子像素第二密度分布区域02包括多个第二子像素150，子像素第三密度分布区域03包括多个第三子像素130。
如图2所示，以显示面板100的短边(水平方向)为宽度方向为例，在显示面板100的宽度方向上，子像素第三密度分布区域03介于子像素第一密度分布区域01与子像素第二密度分布区域02之间。在显示面板100的宽度方向的垂直方向上设置一列第三子像素130。
示例性的，如图1和图2所示，第一显示区AA1为矩形区域，左右两侧的各子像素第三密度分布区域03仅包含一列第三子像素130。可以理解为，左侧的子像素第三密度分布区域03原对应子像素第二分布密度，即左侧的子像素第三密度分布区域03内原分布有第二子像素150，此时该分界线处会存在亮线的情况，示例性的，可以将左侧的子像素第三密度分布区域03分布的第二子像素150进行减半处理，进而得到以子像素第三分布密度设置的第三子像素130，能够使左侧分界线处会存在的亮线模糊化。同理，右侧的子像素第三密度分布区域03原对应子像素第一分布密度，即右侧的子像素第三密度分布区域03内不存在子像素，此时该分界线处会存在暗线的情况，示例性的，可以在右侧的子像素第三密度分布区域03增加第三子像素130，进而得到以子像素第三分布密度设置的第三子像素130，能够使右侧分界线处会存在的暗线模糊化。
根据本申请实施例，仅改变一列子像素，即可得到子像素第三密度分布区域03，降低工艺难度和复杂度，且在子像素第三密度分布区域03包括一列第三子像素130，能够最大程度的模糊化第一显示区AA1和第二显示区AA2之间的分界线。
在一些实施例中，显示面板100还包括第一虚拟子像素120及第二虚拟子像素140。多个第一虚拟子像素120位于子像素第一密度分布区域01。多个第二虚拟子像素140位于子像素第三密度分布区域03。第一子像素110与第一虚拟子像素120共同形成的第一像素排布结构与第二子像素150 形成的第二像素排布结构相同。第三子像素130与第二虚拟子像素140共同形成的第三像素排布结构与第二像素排布结构相同。
可以理解为，第一虚拟子像素120及第二虚拟子像素140所对应的区域并不具有像素结构，即虚拟子像素对应的区域并不会发光显示，相邻的第一子像素110的间距及相邻的第三子像素130的间距大于相邻的第二子像素150的间距。
在一些实施例中，第一子像素110、第二子像素150分别具有颜色不同的多种。在图1和图2中，以不同的填充图案区分不同种颜色的子像素，其中同种颜色的子像素采用同一填充图案绘制。
示例性的，第一子像素110可以包括红色的第一子像素110、绿色的第一子像素110以及蓝色的第一子像素110。第二子像素150可以包括红色的第二子像素150、绿色的第二子像素150以及蓝色的第二子像素150。第三子像素130可以包括红色的第三子像素130、绿色的第三子像素130以及蓝色的第三子像素130，或者，第三子像素130可以包括同一种颜色的第三子像素130。
在一些实施例中，子像素第一密度分布区域01内的一个红色的第一子像素110、一个绿色的第一子像素110以及一个蓝色的第一子像素110形成第一像素发光单元U1。子像素第二密度分布区域02内的一个红色的第二子像素150、一个绿色的第二子像素150以及一个蓝色的第二子像素150形成第二像素发光单元U2。子像素第三密度分布区域03内的一个第一颜色的第三子像素130与子像素第二密度分布区域02内的一个第二颜色的第二子像素150、一个第三颜色的第二子像素150形成第三像素发光单元U3。
每个像素发光单元包括的子像素的数量及颜色种类可以根据显示面板100的设计需要调整，从而不限于上述实施例的示例。此外，每个像素发光单元内各子像素之间的排布方式也不限于上述实施例的示例。
根据本申请实施例的显示面板100，由于第一显示区AA1内即具有能够发光显示的子像素，也具有不发光显示的虚拟子像素，使得第一显示区AA1的实际PPI能够降低，其中仅需要将能够发光显示的子像素与驱动信号线路连接，减少了第一显示区AA1中驱动信号线路的布置数量，便于提 升第一显示区AA1的透光率。
进一步的，第一子像素110与第一虚拟子像素120共同形成的第一像素排布结构与第二子像素150形成的第二像素排布结构相同，第三子像素130与第二虚拟子像素140共同形成的第三像素排布结构与第二像素排布结构相同，使两个显示区显示效果更加均匀，进一步避免两个显示区之间出现明显的分界线，提高显示效果。
在一些实施例中，在第一像素排布结构中，至少任意两个第一子像素110之间间隔排布有第一虚拟子像素120，使得子像素第一密度分布区域01中各种颜色的第一子像素110能够较为均匀分布，提升显示的色彩均匀性。
在一些实施例中，在第三像素排布结构中，至少任意两个第三子像素130之间间隔排布有第二虚拟子像素140。使得子像素第三密度分布区域03中各种颜色的第三子像素130能够较为均匀分布，提升显示的色彩均匀性。
在一些实施例中，第一子像素110以及第一虚拟子像素120阵列排布，形成多个行和/或多个列。在一些实施例中，如图2所示，相邻列的第一子像素110中、同种颜色的第一子像素110位于不同行。或者，相邻行的第一子像素110中、同种颜色的第一子像素110位于不同列。使得子像素第一密度分布区域01中各种颜色的第一子像素110进一步均匀分布，进一步提升显示的色彩均匀性。
在一些实施例中，如图4所示，第一子像素110与第一虚拟子像素120共同形成的第一像素排布结构为标准RGB子像素排布结构。同一行或者同一列的第一子像素110的颜色相同。使得子像素第一密度分布区域01中各种颜色的第一子像素110进一步均匀分布，进一步提升显示的色彩均匀性。
在一些实施例中，请继续参阅图4，第一子像素110与第一虚拟子像素120共同形成的第一像素排布结构、第二子像素150形成的第二像素排布结构及第三子像素130与第二虚拟子像素140共同形成的第三像素排布结构均为标准RGB子像素排布结构。子像素第三密度分布区域03仅包括一列第三子像素130，第三子像素130的颜色与相邻第一子像素110及第二子像素150的颜色均不相同。使得第一显示区AA1与第二显示区AA2的分界处的各种颜色的子像素进一步均匀分布，进一步提升显示的色彩均匀 性，并进一步模糊化第一显示区AA1与第二显示区AA2的分界线。
在一些实施例中，显示面板100还包括第一像素电路及第二像素电路(图中未示出)。第一像素电路和第二像素电路均位于第二显示区AA2。第一像素电路与第一子像素110电连接，用于驱动第一子像素110显示。第二像素电路与第二子像素150及第三子像素130电连接，用于驱动第二子像素150及第三子像素130显示。
在一些实施例中，第一像素电路的电路结构是2T1C电路、7T1C电路、7T2C电路、或9T1C电路中的任一种。本文中，“2T1C电路”指像素电路中包括2个薄膜晶体管(T)和1个电容(C)的像素电路，其它“7T1C电路”、“7T2C电路”、“9T1C电路”等依次类推。
根据本申请实施例的显示面板100，用于驱动第一子像素110显示的第一像素电路140位于第二显示区AA2，从而减少第一显示区AA1内的布线结构，进而提高第一显示区AA1的透光率。
在一些实施例中，第二像素电路的电路结构可以是2T1C电路、7T1C电路、7T2C电路、或9T1C电路中的任一种。第二子像素150及第三子像素130的像素电路的电路结构相同，例如，在纯色画面下，为了使子第一显示区AA1及第二显示区AA2的显示效果尽可能一致，第一子像素110的亮度是高于第二子像素150的亮度的。本申请实施例，在第一显示区AA1和第二显示区AA2相邻的左侧边界，对第二显示区AA2内且与第一显示区AA1相邻的一列子像素进行减半处理，在第一显示区AA1和第二显示区AA2相邻的右侧边界，对第一显示区AA1内且与第二显示区AA2相邻的一列虚拟子像素占用的位置上增加子像素，得到第三子像素，从而形成子像素第三密度分布区域03。进一步的，利用第二像素电路驱动第二子像素150及第三子像素130，能够控制第三子像素130的显示亮度与相同颜色的第二子像素150的显示亮度相同，能够进一步模糊化第一显示区AA1与第二显示区AA2的分界线。
在一些实施例中，第一子像素110包括依次层叠设置的第一电极、发光结构及第二电极。第一电极、第二电极中的一个为阳极、另一个为阴极。本实施例中，以第一电极是阳极、第二电极是阴极为例进行说明。
发光结构可以包括OLED发光层，根据发光结构的设计需要，OLED发光层还可以包括空穴注入层、空穴传输层、电子注入层或电子传输层中的至少一种。
在一些实施例中，第一电极为透光电极。在一些实施例中，第一电极包括氧化铟锡(Indium Tin Oxide，ITO)层或氧化铟锌层。在一些实施例中，第一电极为反射电极，包括第一透光导电层、位于第一透光导电层上的反射层以及位于反射层上的第二透光导电层。其中第一透光导电层、第二透光导电层可以是ITO、氧化铟锌等，反射层可以是金属层，例如是银材质制成。
在一些实施例中，第二电极包括镁银合金层。在一些实施例中，第二电极可以互连为公共电极。
在一些实施例中，每个发光结构在垂直于显示面板方向上的投影由一个第一图形单元组成或由两个以上第一图形单元拼接组成，第一图形单元包括从由圆形、椭圆形、哑铃形、葫芦形、矩形组成的群组中选择的至少一个。
在一些实施例中，每个第一电极在垂直于显示面板方向上的投影由一个第二图形单元组成或由两个以上第二图形单元拼接组成，第二图形单元包括从由圆形、椭圆形、哑铃形、葫芦形、矩形组成的群组中选择的至少一个。
示例性地，显示面板100还可以包括封装层和位于封装层上方的偏光片和盖板，也可以直接在封装层上方直接设置盖板，无需设置偏光片，或者至少在第一显示区AA1的封装层上方直接设置盖板，无需设置偏光片，避免偏光片影响对应第一显示区AA1下方设置的感光元件的光线采集量，当然，第一显示区AA1的封装层上方也可以设置偏光片。
本申请实施例还提供一种显示装置，该显示装置可以包括上述任一实施方式的显示面板100。以下将以一种实施例的显示装置为例进行说明，该实施例中，显示装置包括上述实施例的显示面板100。
图5示出根据本申请一种实施例的显示装置的俯视示意图，图6示出图5中A-A向的剖面图。本实施例的显示装置中，显示面板100可以是上 述其中一个实施例的显示面板100，显示面板100具有第一显示区AA1、第二显示区AA2，以及围绕第一显示区AA1和第二显示区AA2的非显示区NA，第一显示区AA1的透光率大于第二显示区AA2的透光率。
显示面板100包括相对的第一表面S1和第二表面S2，其中第一表面S1为显示面。显示装置还包括感光组件200，该感光组件200位于显示面板100的第二表面S2侧，感光组件200与第一显示区AA1位置对应。
感光组件200可以是图像采集装置，用于采集外部图像信息。本实施例中，感光组件200为互补金属氧化物半导体(Complementary Metal Oxide Semiconductor，CMOS)图像采集装置，在其它一些实施例中，感光组件200也可以是电荷耦合器件(Charge-coupled Device，CCD)图像采集装置等其它形式的图像采集装置。可以理解的是，感光组件200可以不限于是图像采集装置，例如在一些实施例中，感光组件200也可以是红外传感器、接近传感器、红外镜头、泛光感应元件、环境光传感器以及点阵投影器等光传感器。此外，显示装置在显示面板100的第二表面S2还可以集成其它部件，例如是听筒、扬声器等。
根据本申请实施例的显示装置，第一显示区AA1的透光率大于第二显示区AA2的透光率，使得显示面板100在第一显示区AA1的背面可以集成感光组件200，实现例如图像采集装置的感光组件200的屏下集成，同时第一显示区AA1能够显示画面，提高显示面板100的显示面积，实现显示装置的全面屏设计。
子像素第三密度分布区域03在第一显示区AA1和第二显示区AA2的至少一者上、相邻第一显示区AA1和第二显示区AA2的分界线设置，且子像素第三密度分布区域03对应的子像素第三分布密度介于子像素第二密度分布区域02对应的子像素第二分布密度及子像素第一密度分布区域01对应的子像素第一分布密度之间，能够使显示面板显示画面中较高PPI的第二显示区AA2与较低PPI的第一显示区AA1之间的分界线模糊化，避免两个显示区的分界线出现明显的亮线或者暗线，提高显示效果。
本申请实施例还提供一种显示面板的驱动方法，用于驱动上述任一实施方式的显示面板100。图7示出根据本申请一种实施例提供的显示面板 的驱动方法的流程示意图，如图7所示，显示面板的驱动方法包括以下步骤：
S10，获取子像素第一密度分布区域内各个颜色的子像素对应的第一伽马曲线以及子像素第二密度分布区域内各个颜色的子像素对应的第二伽马曲线。
S20，利用第一伽马曲线驱动子像素第一密度分布区域内相应颜色的子像素发光，利用第二伽马曲线驱动子像素第二密度分布区域内的子像素及子像素第三密度分布区域内的子像素发光，使得显示面板显示纯色画面时，子像素第三密度分布区域内的子像素的发光电流与同一颜色的子像素第二密度分布区域内的子像素的发光电流相同。
其中，第一伽马曲线及第二伽马曲线表征相应颜色的子像素的伽马电压与发光电流的对应关系。
根据本申请实施例提供的显示面板的驱动方法，利用第二伽马曲线驱动子像素第二密度分布区域内的子像素及子像素第三密度分布区域内的子像素发光，使得子像素第三密度分布区域内的子像素的显示效果与同一颜色的子像素第二密度分布区域内的子像素的显示效果相同，且在显示纯色画面时，子像素第三密度分布区域内的子像素的发光电流与同一颜色的子像素第二密度分布区域内的子像素的发光电流相同，即子像素第三密度分布区域内的子像素的发光亮度与同一颜色的子像素第二密度分布区域内的子像素的发光亮度相同，能够进一步使显示面板显示画面中较高PPI的第二显示区AA2与较低PPI的第一显示区AA1之间的分界线模糊化，避免两个显示区的分界线出现明显的亮线或者暗线，提高显示效果。
本申请如上文所述的实施例并没有详尽叙述所有的细节，也不限制本申请的范围。显然，根据以上描述，本领域普通技术人员可作很多的修改和变化。本说明书具体描述这些实施例，是为了更好地解释本申请的原理和实际应用，从而使所属技术领域技术人员能很好地利用本申请以及在本申请基础上的修改使用。本申请的范围仅由所附权利要求书限定。

Claims (17)

  1. 一种显示面板，具有第一显示区以及第二显示区，所述第一显示区的透光率大于所述第二显示区的透光率，所述显示面板包括：
    阵列基板；
    发光层，设置于所述阵列基板上，所述发光层包括子像素第一密度分布区域、子像素第二密度分布区域及子像素第三密度分布区域，所述子像素第一密度分布区域对应所述第一显示区设置，所述子像素第二密度分布区域对应所述第二显示区设置，所述子像素第三密度分布区域在所述第一显示区和所述第二显示区的至少一者上，且与所述第一显示区和所述第二显示区的分界线相邻设置；
    其中，所述子像素第一密度分布区域对应的子像素第一分布密度小于所述子像素第三密度分布区域对应的子像素第三分布密度，所述子像素第三分布密度小于所述子像素第二密度分布区域对应的子像素第二分布密度。
  2. 根据权利要求1所述的显示面板，其中，所述子像素第一密度分布区域包括多个第一子像素，所述子像素第二密度分布区域包括多个第二子像素，所述子像素第三密度分布区域包括多个第三子像素；
    在所述显示面板的宽度方向上，所述子像素第三密度分布区域介于所述子像素第一密度分布区域与所述子像素第二密度分布区域之间。
  3. 根据权利要求2所述的显示面板，其中，在所述宽度方向的垂直方向上设置一列所述第三子像素。
  4. 根据权利要求2或3所述的显示面板，其中，所述显示面板还包括：
    第一虚拟子像素，多个所述第一虚拟子像素位于所述子像素第一密度分布区域；
    第二虚拟子像素，多个所述第二虚拟子像素位于所述子像素第三密度分布区域；
    其中，所述第一子像素与所述第一虚拟子像素共同形成的第一像素排布结构与所述第二子像素形成的第二像素排布结构相同；
    所述第三子像素与所述第二虚拟子像素共同形成的第三像素排布结构与所述第二像素排布结构相同。
  5. 根据权利要求4所述的显示面板，其中，在所述第一像素排布结构中，至少两个所述第一子像素之间间隔排布有所述第一虚拟子像素。
  6. 根据权利要求4或5所述的显示面板，其中，在所述第三像素排布结构中，至少任意两个所述第三子像素之间间隔排布有所述第二虚拟子像素。
  7. 根据权利要求4所述的显示面板，其中，相邻列的所述第一子像素中，同种颜色的所述第一子像素位于不同行；或者，相邻行的所述第一子像素中，同种颜色的所述第一子像素位于不同列。
  8. 根据权利要求4所述的显示面板，其中，同一行或者同一列的所述第一子像素的颜色相同和/或；
    所述第三子像素的颜色与相邻所述第一子像素及第二子像素的颜色均不相同。
  9. 根据权利要求2所述的显示面板，其中，所述显示面板还包括：
    第一像素电路，位于所述第二显示区，所述第一像素电路与所述第一子像素电连接，用于驱动所述第一子像素显示；
    第二像素电路，位于所述第二显示区，所述第二像素电路与所述第二子像素及所述第三子像素电连接，用于驱动所述第二子像素及所述第三子像素显示。
  10. 根据权利要求2所述的显示面板，其中，所述第一子像素包括依次层叠设置的第一电极、发光结构及第二电极。
  11. 根据权利要求10所述的显示面板，其中，所述第一电极在垂直于所述显示面板方向上的投影由一个第二图形单元组成或由两个以上第二图形单元拼接组成，所述第二图形单元包括从由圆形、椭圆形、哑铃形、葫芦形、矩形组成的群组中选择的至少一个。
  12. 根据权利要求10所述的显示面板，其中，所述第一显示区的第一电极为透光电极。
  13. 根据权利要求10所述的显示面板，其中，所述第一显示区的第一电极为反射电极。
  14. 根据权利要求10所述的显示面板，其中，所述第一显示区的第一 电极包括氧化铟锡层、氧化铟锌层、镁银合金层中的至少一层。
  15. 根据权利要求10所述的显示面板，其中所述发光结构在垂直于所述显示面板方向上的投影由一个第一图形单元组成或由两个以上第一图形单元拼接组成，所述第一图形单元包括从由圆形、椭圆形、哑铃形、葫芦形、矩形组成的群组中选择的至少一个。
  16. 一种显示面板的驱动方法，用于驱动如权利要求1至15任一项所述的显示面板，所述驱动方法包括：
    获取所述子像素第一密度分布区域内各个颜色的子像素对应的第一伽马曲线以及所述子像素第二密度分布区域内各个颜色的子像素对应的第二伽马曲线；
    利用所述第一伽马曲线驱动所述子像素第一密度分布区域内相应颜色的子像素发光，利用所述第二伽马曲线驱动所述子像素第二密度分布区域内的子像素及所述子像素第三密度分布区域内的子像素发光，使得所述显示面板显示纯色画面时，所述子像素第三密度分布区域内的子像素的发光电流与同一颜色的所述子像素第二密度分布区域内的子像素的发光电流相同。
  17. 一种显示装置，包括根据权利要求1至15任一项所述的显示面板。
PCT/CN2020/117241 2019-12-16 2020-09-23 显示面板及其驱动方法、显示装置 WO2021120761A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/591,247 US20220157898A1 (en) 2019-12-16 2022-02-02 Display panel and driving method thereof and display apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911292532.6A CN111192902B (zh) 2019-12-16 2019-12-16 显示面板及其驱动方法、显示装置
CN201911292532.6 2019-12-16

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/591,247 Continuation US20220157898A1 (en) 2019-12-16 2022-02-02 Display panel and driving method thereof and display apparatus

Publications (1)

Publication Number Publication Date
WO2021120761A1 true WO2021120761A1 (zh) 2021-06-24

Family

ID=70709228

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/117241 WO2021120761A1 (zh) 2019-12-16 2020-09-23 显示面板及其驱动方法、显示装置

Country Status (3)

Country Link
US (1) US20220157898A1 (zh)
CN (1) CN111192902B (zh)
WO (1) WO2021120761A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117082933A (zh) * 2023-09-13 2023-11-17 惠科股份有限公司 显示面板及具有其的显示装置

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111192902B (zh) * 2019-12-16 2021-05-07 昆山国显光电有限公司 显示面板及其驱动方法、显示装置
WO2021227023A1 (zh) * 2020-05-15 2021-11-18 京东方科技集团股份有限公司 显示面板及其制作方法、显示装置
CN111402755A (zh) * 2020-05-28 2020-07-10 上海天马微电子有限公司 显示面板及显示装置
CN111681565B (zh) * 2020-06-22 2022-03-22 Oppo广东移动通信有限公司 显示屏和电子设备
CN113838889A (zh) * 2020-06-23 2021-12-24 京东方科技集团股份有限公司 显示基板、显示面板、电子设备和显示方法
CN111710708B (zh) * 2020-07-01 2022-09-13 昆山国显光电有限公司 显示面板以及显示装置
CN111862873B (zh) * 2020-07-17 2023-07-25 Oppo广东移动通信有限公司 一种显示屏的供电控制方法及终端
CN111863897B (zh) * 2020-07-17 2022-12-23 武汉华星光电半导体显示技术有限公司 一种无边框显示面板、显示装置及拼接型显示装置
CN111862875B (zh) * 2020-07-27 2022-03-15 云谷（固安）科技有限公司 显示方法、显示面板、显示控制装置及存储介质
CN112002749B (zh) * 2020-09-17 2022-09-23 云谷（固安）科技有限公司 显示面板及显示装置
CN114556462A (zh) * 2020-09-24 2022-05-27 京东方科技集团股份有限公司 显示面板、显示装置及制备方法
CN114416009A (zh) * 2020-10-28 2022-04-29 Oppo广东移动通信有限公司 图像处理方法、装置、存储介质及电子设备
CN114566522A (zh) 2020-11-27 2022-05-31 京东方科技集团股份有限公司 显示基板以及显示装置
CN114550652B (zh) 2020-11-27 2023-10-27 京东方科技集团股份有限公司 显示基板以及显示装置
CN114566520A (zh) 2020-11-27 2022-05-31 京东方科技集团股份有限公司 显示基板以及显示装置
US11985841B2 (en) 2020-12-07 2024-05-14 Oti Lumionics Inc. Patterning a conductive deposited layer using a nucleation inhibiting coating and an underlying metallic coating
US20230263027A1 (en) * 2021-03-31 2023-08-17 Chengdu Boe Optoelectronics Technology Co., Ltd. Display substrate and manufacturing method thereof and display device
CN113140609B (zh) * 2021-04-20 2022-10-04 合肥维信诺科技有限公司 显示面板及显示装置
CN216623636U (zh) * 2021-12-15 2022-05-27 昆山国显光电有限公司 显示面板及显示装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108269840A (zh) * 2017-09-30 2018-07-10 昆山国显光电有限公司 显示屏及显示装置
CN209487510U (zh) * 2019-01-31 2019-10-11 昆山国显光电有限公司 显示面板及显示装置
CN111192902A (zh) * 2019-12-16 2020-05-22 昆山国显光电有限公司 显示面板及其驱动方法、显示装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102519420B1 (ko) * 2016-05-16 2023-04-10 삼성디스플레이 주식회사 투명 표시 장치 및 투명 표시 장치의 제조 방법
CN109637452B (zh) * 2019-01-24 2020-07-07 京东方科技集团股份有限公司 显示面板及其驱动方法、显示装置
CN110148621B (zh) * 2019-06-28 2021-07-30 昆山国显光电有限公司 透明显示基板、阵列基板、显示面板及显示装置
CN110310576B (zh) * 2019-06-29 2022-07-15 武汉天马微电子有限公司 一种显示面板和显示装置
CN110379836B (zh) * 2019-07-19 2022-02-22 云谷（固安）科技有限公司 显示面板及显示装置
US20210050548A1 (en) * 2019-08-15 2021-02-18 Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd Display panel
CN110504289B (zh) * 2019-08-27 2022-08-16 武汉天马微电子有限公司 一种显示面板和显示装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108269840A (zh) * 2017-09-30 2018-07-10 昆山国显光电有限公司 显示屏及显示装置
CN209487510U (zh) * 2019-01-31 2019-10-11 昆山国显光电有限公司 显示面板及显示装置
CN111192902A (zh) * 2019-12-16 2020-05-22 昆山国显光电有限公司 显示面板及其驱动方法、显示装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117082933A (zh) * 2023-09-13 2023-11-17 惠科股份有限公司 显示面板及具有其的显示装置

Also Published As

Publication number Publication date
CN111192902B (zh) 2021-05-07
US20220157898A1 (en) 2022-05-19
CN111192902A (zh) 2020-05-22

Similar Documents

Publication Publication Date Title
WO2021120761A1 (zh) 显示面板及其驱动方法、显示装置
US20220069023A1 (en) Display panel and display device
US20220199710A1 (en) Display panel and display device
WO2021082534A1 (zh) 显示面板及显示装置
WO2021208665A1 (zh) 显示面板及显示装置
WO2021139444A1 (zh) 显示面板及显示装置
WO2021036285A1 (zh) 显示面板及显示装置
WO2019015605A1 (zh) 显示装置、电致发光显示面板及显示装置的获取图像显示方法
WO2021103654A1 (zh) 显示面板及显示装置
US20220158117A1 (en) Display panel and display apparatus
US20240130191A9 (en) Display panel
WO2022001516A1 (zh) 显示面板以及显示装置
CN111211150B (zh) 显示面板及显示装置
TW202201377A (zh) 顯示面板及顯示裝置
US20240016015A1 (en) Display panel and display apparatus
WO2023109137A1 (zh) 显示面板及显示装置
US20240029648A1 (en) Display panel and display apparatus

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20902755

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20902755

Country of ref document: EP

Kind code of ref document: A1