WO2021082534A1 - 显示面板及显示装置 - Google Patents
显示面板及显示装置 Download PDFInfo
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- WO2021082534A1 WO2021082534A1 PCT/CN2020/102697 CN2020102697W WO2021082534A1 WO 2021082534 A1 WO2021082534 A1 WO 2021082534A1 CN 2020102697 W CN2020102697 W CN 2020102697W WO 2021082534 A1 WO2021082534 A1 WO 2021082534A1
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- 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
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- 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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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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- H10K59/30—Devices specially adapted for multicolour light emission
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- 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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- G09G3/2074—Display of intermediate tones using sub-pixels
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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- H10K30/80—Constructional details
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- H10K30/82—Transparent electrodes, e.g. indium tin oxide [ITO] electrodes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H—ELECTRICITY
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Definitions
- This application relates to the field of display, in particular to a display panel and a display device.
- Electronic devices such as mobile phones and tablet computers need to integrate front-facing cameras, earpieces, and infrared sensing components.
- a notch or hole can be formed on the display screen, and external light can enter the photosensitive element located under the screen through the notch or hole on the screen.
- these electronic devices are not full screens 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 first display area includes a central area and an edge area adjacent to the central area.
- the light transmittance of the first display area is greater than
- the display panel includes:
- each repeating unit includes at least two pixels, each pixel includes at least three colors of sub-pixels, and each sub-pixel includes a first electrode, a light-emitting structure, and a second electrode stacked in sequence;
- the first electrodes of adjacent sub-pixels of the same color in the repeating unit are electrically connected through the interconnection structure to form a pixel group of the same color.
- the interconnection structure of the pixel group of the same color of at least one color is a transparent conductive structure.
- 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, increase the display area of the display panel, and realize the full-screen design of the display device.
- the first electrodes of adjacent sub-pixels of the same color in the repeating unit in the first display area are electrically connected through the interconnection structure to form a pixel group of the same color.
- the multiple pixels included in the repeating unit in the first display area become one pixel, so that the actual pixel density (Pixels Per Inch, PPI) of the first display area can be reduced, wherein only the same color pixel groups in the repeating unit are needed.
- a plurality of sub-pixels are connected to a pixel circuit, which reduces the number of wires in the first display area and facilitates the improvement of the light transmittance of the first display area.
- the interconnection structure of at least one color of the same color pixel group is a transparent conductive structure, which can further improve the light transmittance in the central area of the first display area.
- FIG. 1 shows a schematic top view of a display panel according to an embodiment of the present application
- Fig. 2 shows a partial enlarged view of area Q in Fig. 1 provided by an example
- Fig. 3 shows a partial enlarged view of the Q area in Fig. 1 provided by another example
- Fig. 4 shows a cross-sectional view in the direction B-B in Fig. 2 provided by the first example
- Fig. 5 shows a cross-sectional view in the direction B-B in Fig. 2 provided by the second example
- Fig. 6 shows a cross-sectional view in the direction B-B in Fig. 2 provided by the third example
- Fig. 7 shows a cross-sectional view in the direction B-B in Fig. 2 provided by the fourth example
- FIG. 8 shows a schematic top view of a display device according to an embodiment of the present application.
- Fig. 9 shows a cross-sectional view along the line C-C in Fig. 8 provided by an example.
- 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 sub-pixel combination in the light-transmitting display area has the problem that the light transmittance of the light-transmitting display area is not high.
- the embodiments of the present application provide a display panel and a display device.
- the embodiments of the display panel and the display device will be described below with reference to the accompanying drawings.
- An embodiment of the application provides a display panel, which may be an organic light emitting diode (OLED) display panel.
- a display panel which may be an organic light emitting diode (OLED) display panel.
- FIG. 1 shows a schematic top view of a display panel provided according to an embodiment of the present application
- FIG. 2 shows a partial enlarged view of the Q area in FIG. 1 provided by an example
- Fig. 3 shows a partial enlarged view of the Q area in Fig. 1 provided by another example
- Fig. 4 to Fig. 7 show the cross-sectional views along the B-B direction in Fig. 2 provided by four examples.
- the display panel 100 has a first display area AA1, a second display area AA2, and a non-display area NA surrounding the first display area AA1 and the second display area AA2.
- 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 each functional film layer 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 a full-screen design of the display device.
- the first display area AA1 includes a central area AA11 and an edge area AA12 adjacent to the central area AA11.
- the back surface of the first display area AA1 integrates photosensitive components, and the light transmittance requirement of the central area AA11 is higher than that of the edge area AA12.
- the specific position, shape and size of the central area AA11 can be set according to the specific position of the photosensitive component.
- the display panel 100 includes a plurality of repeating units 10, and the repeating unit 10 includes at least two pixels 110.
- Each pixel 110 includes at least three colors of sub-pixels 101, 102, 103.
- Each sub-pixel 101, 102, 103 includes a first electrode 112, a light-emitting structure 111, and a second electrode 113 stacked in sequence.
- the first electrodes 112 of the adjacent sub-pixels 101, 102, and 103 of the same color in the repeating unit 10 are electrically connected through the interconnection structures 201, 202, and 203 to form the same-color pixel group 01, 02, 03 .
- FIG. 2 shows that the same-color pixel group 01 includes four first-color sub-pixels 101 and three interconnection structures 201, and the same-color pixel group 02 includes four second-color sub-pixels 102 and three interconnection structures. 202.
- the pixel group 03 of the same color includes four sub-pixels 103 of the third color and three interconnection structures 203. In this way, the multiple sub-pixels interconnected by the first electrode 112 form a pixel combined structure.
- Multiple sub-pixels included in a pixel group of the same color of one color can be electrically connected to the same pixel circuit, thereby controlling the display of multiple interconnected sub-pixels through one pixel circuit, further reducing the actual PPI of the first display area AA1 and reducing the first display
- the drive wiring in area AA1 improves its light transmittance.
- the interconnection structure of at least one color of the same color pixel group is a transparent conductive structure, which can further improve the light transmittance of the central area AA11.
- the transparent conductive structure can be made of ITO.
- the display panel includes a substrate 301, and pixels 110 are disposed on the substrate 301.
- the pixel 110 includes three color sub-pixels, which are a first color sub-pixel 101, a second color sub-pixel 102, and a third color sub-pixel 103, respectively.
- the same-color pixel group includes a first same-color pixel group 01 of a first color, a second same-color pixel group 02 of a second color, and a third same-color pixel group 03 of a third color.
- the orthographic projections of the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 on the substrate 301 do not intersect. Further, the interconnection structure of the third same-color pixel group 03 intersects the orthographic projections of the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 on the substrate 301. Or, the orthographic projections of the interconnect structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 on the substrate 301 do not intersect.
- the interconnection structure of the same-color pixel groups of two of the three colors is set such that the orthographic projections on the substrate do not intersect.
- the interconnection structures of the same-color pixel groups of two colors can be arranged in the same layer, and these interconnection structures can be formed in the same process step, thereby reducing the complexity of the manufacturing process.
- the interconnection structures whose orthographic projections intersect on the substrate can be arranged in different layers, which can prevent the interconnection structures whose orthographic projections intersect on the substrate are arranged on the same layer from affecting the normal operation of the same color pixel group.
- the interconnection structure of at least one color of the same color pixel group is a transparent conductive structure
- the interconnection structure of the central area AA11 and the edge area AA12 may include at least the following settings the way.
- the interconnection structure of the central area AA11 can be arranged in at least the following two ways.
- the first setting method :
- the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 are transparent conductive structures arranged in the same layer as the first electrode 112.
- the interconnection structure 203 of the third same-color pixel group 03 is different from the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 in different layers.
- the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 are transparent conductive structures disposed under the first electrode 112, and the interconnection structure of the third same-color pixel group 03
- the interconnection structure 203 is different from the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 in different layers.
- the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 are the same layer or different layers disposed under the first electrode 112.
- the interconnection structure of the edge area AA12 can be arranged in at least the following two ways.
- the first setting method :
- the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 are arranged in the same layer as the first electrode 112.
- the interconnection structure 203 of the third same-color pixel group 03 is arranged in different layers from the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02.
- the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 are arranged in the same layer as the first electrode 112, the first same-color pixel group
- the material of the interconnect structure 201 of 01 and the interconnect structure 202 of the second same-color pixel group 02 may be the same or different from the material of the first electrode 112, and may also be a transparent conductive structure.
- the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 are transparent conductive structures disposed under the first electrode 112.
- the interconnection structure 203 of the third same-color pixel group 03 is arranged in different layers from the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02.
- the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 may be the same layer or different layers disposed under the first electrode 112.
- the pixel groups of the same color in the first display area AA1 are connected to the corresponding pixel circuits through wires.
- the lead can be a transparent conductive structure, such as ITO (Indium Tin Oxides).
- ITO Indium Tin Oxides
- the first same-color pixel group 01 is connected to a corresponding pixel circuit (not shown in the figure) through a lead 2011, the second same-color pixel group 02 is connected to a corresponding pixel circuit through a lead 2021, and the third same-color pixel The group 03 is connected to the corresponding pixel circuit through the lead 2031.
- the pixel circuit controls the display of each sub-pixel of the same color pixel group through the corresponding lead.
- the leads 2011, 2021, and 2031 are all transparent conductive structures to improve the light transmittance of the first display area AA1.
- the two setting methods of AA12 can be combined in any way.
- the above two setting methods of the central area AA11 and the two setting methods of the edge area AA12 are combined as follows.
- the pixel density of the first display area AA1 is relatively small, such as 100 PPI or less, and the spacing between the sub-pixels will be relatively large, so that there is enough space for wiring lines.
- the first setting method of the central area AA11 and the first setting method of the edge area AA12 are adopted.
- the material of the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 may be the same or different from the material of the first electrode 112, or may be a transparent conductive structure.
- the central area AA11 and the edge area AA12 adopt the same arrangement, that is, the central area AA11 and the edge area AA12 adopt the first combination method, and the first same-color pixel group in the central area AA11 and the edge area AA12 can be combined.
- the leads 2011 and 2021 corresponding to the second pixel group 02 of the same color are arranged as a transparent conductive structure on the same layer as the first electrode 112.
- the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 in the central area AA11 and the edge area AA12 can be configured as transparent conductive structures.
- the interconnect structures 201 and 202 and the leads 2011 and 2021 of the entire first display area AA1 can be formed in the same process step, thereby reducing the complexity of the manufacturing process.
- the light transmittance of the entire first display area AA1 can be improved.
- the leads 2031 corresponding to the third pixel group 03 of the same color in the central area AA11 and the edge area AA12 may be arranged as a transparent conductive structure in the same layer as the first electrode 112, or the third area of the central area AA11 and the edge area AA12.
- the leads 2031 corresponding to the same-color pixel group 03 may be set as a transparent conductive structure on the same layer as the interconnection structure 203 of the third same-color pixel group 03.
- the pixel density of the first display area AA1 is relatively large, for example, greater than 100 PPI, and the spacing between the sub-pixels will be relatively small, so there is not enough space for wiring.
- the second setting method of the central area AA11 and the first setting method of the edge area AA12 are adopted.
- the material of the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 may be the same or different from the material of the first electrode 112, or may be a transparent conductive structure.
- the central area AA11 and the edge area AA12 are arranged in different ways.
- the interconnection structures 201 and 202 of the edge area AA12 are arranged in the same layer as the first electrode 112, which can leave enough space under the first electrode 112 of the edge area AA12 Lay out the leads.
- the interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 in the edge area AA12 are both set to the same material as the first electrode 112, and the same process can be used. In the step, the interconnection structures 201 and 202 and the first electrode 112 of the edge area AA12 are formed, thereby reducing the complexity of the manufacturing process.
- the leads 2011 and 2021 corresponding to the first same-color pixel group 01 and the second same-color pixel group 02 in the central area AA11 are the interconnection structure 201 and the first same-color pixel group 01 in the central area AA11.
- the interconnection structure 202 of the two-color pixel group 02 is a transparent conductive structure arranged in the same layer. That is, the interconnect structures 201 and 202 of the central area AA11 and the corresponding leads 2011 and 2021 are all arranged in the same layer under the first electrode 112, and they are all transparent conductive structures, and the central area AA11 can be formed in the same process step.
- the interconnection structures 201 and 202 and the leads 2011 and 2021 can reduce the complexity of the manufacturing process.
- the pixel density of the first display area AA1 is relatively small, such as 100 PPI or less, and the spacing between the sub-pixels will be relatively large, so that there is enough space for wiring lines.
- the second setting method of the central area AA11 and the second setting method of the edge area AA12 are adopted.
- the interconnection structures 201 and 202 of the central area AA11 and the edge area AA12 are both located under the first electrode 112.
- the interconnection structure 202 of the two-color pixel group 02 is located in the same layer under the first electrode 112.
- the leads 2011 and 2021 corresponding to the first same-color pixel group 01 and the second same-color pixel group 02 in the central area AA11 are the interconnection structures 201 and the second same-color pixel group 01 in the central area AA11.
- the interconnection structure 202 of the two-color pixel group 02 is a transparent conductive structure arranged in the same layer.
- the leads 2011 and 2021 corresponding to the first same-color pixel group 01 and the second same-color pixel group 02 in the edge area AA12 are interconnect structures 201 and the first same-color pixel group 01 in the edge area AA12.
- the interconnection structure 202 of the two-color pixel group 02 is a transparent conductive structure arranged in the same layer.
- the interconnection structure 201 of the first same-color pixel group 01, the corresponding lead 2011 and the interconnection structure 202 of the second same-color pixel group 02, and the corresponding lead 2021 in the central area AA11 and the edge area AA12 They are all arranged as transparent conductive structures on the same layer. In this way, the interconnect structures 201 and 202 and the leads 2011 and 2021 of the entire first display area AA1 can be formed in the same process step, thereby reducing the complexity of the manufacturing process. In addition, the light transmittance of the entire first display area AA1 can be improved.
- the pixel density of the first display area AA1 is relatively large, for example, greater than 100 PPI, and the spacing between the sub-pixels will be relatively small, so there is not enough space for wiring.
- the first setting method of the central area AA11 and the second setting method of the edge area AA12 are adopted.
- the central area AA11 and the edge area AA12 are arranged in different ways.
- the interconnection structures 201 and 202 of the edge area AA12 are arranged below the first electrode 112, which can leave enough space on the layer where the first electrode 112 of the edge area AA12 is located. The space to arrange the leads.
- interconnection structure 201 of the first same-color pixel group 01 and the interconnection structure 202 of the second same-color pixel group 02 in the edge area AA12 are both configured as transparent conductive structures, thereby improving the light transmittance of the entire first display area AA1 rate.
- the leads 2011 and 2021 corresponding to the first same-color pixel group 01 and the second same-color pixel group 02 in the central area AA11 are transparent conductive structures arranged on the same layer as the first electrode 112.
- the interconnection structures 201, 202 and the corresponding leads 2011 and 2021 of the central area AA11 are in the same layer as the first electrode 112, and the interconnection structures 201, 202 and the corresponding leads 2011 and 2021 of the central area AA11 can be formed in the same process step, thereby The complexity of the preparation process can be reduced.
- the leads 2011 and 2021 corresponding to the first same-color pixel group 01 and the second same-color pixel group 02 in the edge area AA12 are interconnect structures 201 and the second same-color pixel group 01 in the edge area AA12.
- the interconnection structure 202 of the two-color pixel group 02 is a transparent conductive structure arranged in the same layer. In this way, the interconnect structures 201 and 202 of the edge area AA12 and the corresponding leads 2011 and 2021 can be formed in the same process step, thereby reducing the complexity of the manufacturing process.
- the display panel includes a substrate 301, a device layer 302, and a pixel definition layer 303.
- the device layer 302 is located on the substrate 301, and the pixel definition layer 303 is located on the device layer 302.
- the pixel circuit corresponding to each sub-pixel of the first display area AA1 is located in the device layer 302 of the second display area AA2 (not shown in the figure).
- the device layer 302 includes a planarization layer 3022 and at least one metal layer 3021, and the metal layer 3021 is located between the planarization layer 3022 and the substrate 301.
- One metal layer 3021 of the at least one metal layer 3021 is the interconnection structure 203 of the third same-color pixel group 03 in the central area AA11 and the edge area AA12.
- the interconnection structure 203 of the third same-color pixel group 03 is electrically connected to the corresponding first electrode 112 through a via hole.
- the metal layer 3021 can be the upper electrode plate of the capacitor, and it is only necessary to form a via structure in the preparation process to connect the corresponding first electrode and the upper electrode plate of the capacitor, thereby forming the interconnection structure 203 of the third same-color pixel group 03, which simplifies Preparation Process.
- the interconnection structures 201 and 202 in the central area AA11 and/or the edge area AA12 are arranged in the same layer as the first electrode 112, they may be located above the planarization layer 3022.
- the interconnection structures 201 and 202 of the central area AA11 and/or the edge area AA12 are located under the first electrode 112, they may be located under the planarization layer 3022.
- the interconnection structures 201 and 202 are located below the first electrode 112, they are electrically connected to the corresponding first electrode 112 through the via hole.
- the second display area AA2 includes a first sub display area AA21 and a second sub display area AA22 adjacent to the first sub display area AA21 and the first display area AA1.
- the pixel circuits corresponding to the sub pixels of the first display area AA1 are arranged in the second display area AA1. In the sub-display area AA22. It can be understood that the number of pixel circuits corresponding to the sub-pixels of the first display area AA1 may be multiple, and they are respectively electrically connected to corresponding pixel groups of the same color.
- the circuit structure of the pixel circuit includes 1 thin film transistor, 2 thin film transistors and 1 capacitor, 3 thin film transistors and 1 capacitor, 6 thin film transistors and 1 capacitor, 6 thin film transistors and 2 capacitors, and 7 thin film transistors. Transistor and 1 capacitor, 7 thin film transistors and 2 capacitors, or 9 thin film transistors and 1 capacitor.
- the circuit structure of the pixel circuit includes 2 thin film transistors (T) and 1 capacitor (C), which means that the circuit structure of the pixel circuit is "2T1C circuit", other "7T1C circuit”, “7T2C circuit”, “9T1C circuit” "And so on.
- the pixel circuit for driving the display of each sub-pixel of the same color pixel group is located in the second sub-display area AA22, thereby reducing the wiring structure in the first display area AA1, thereby increasing the first display area The light transmittance of AA1.
- the at least two pixels 110 included in the repeating unit 10 are alternately distributed in the first direction D1, and the sub-pixels of any two adjacent pixels 110 are arranged along the second direction D2 and are misaligned in the first direction D1.
- D1 intersects the second direction D2.
- the first direction D1 is perpendicular to the second direction D2, the first direction D1 may be a row direction or a column direction, and the corresponding second direction D2 may be a column direction or a row direction.
- the color sequence of the sub-pixels of any two adjacent pixels 110 arranged along the second direction D2 is different.
- the repeating unit 10 includes four pixels 110, and each pixel 110 includes sub-pixels of three colors.
- the color sequence of the sub-pixels of the first pixel 110 on the left along the second direction D2 may be red sub-pixels, green sub-pixels, and blue sub-pixels.
- the color sequence of the sub-pixels of the second pixel 110 on the left that are arranged along the second direction D2 may be blue sub-pixels, red sub-pixels, and green sub-pixels.
- the color sequence of the sub-pixels of the first pixel 110 on the right along the second direction D2 is the same as that of the second pixel 110 on the left, and the color sequence of the sub-pixels of the second pixel 110 on the right along the second direction D2 is the same as that of the sub-pixels of the second pixel 110 on the right.
- the order of the first pixel 110 on the left is the same.
- the colors of the sub-pixels adjacently arranged in the second direction in the first display area AA1 are all different, and the sub-pixels of the same color are distributed more uniformly, which can avoid the occurrence of multiple sub-pixels in a certain area of the first display area AA1.
- the adjacent sub-pixels of the same color cause uneven color distribution during the display of the first display area AA1, which in turn leads to the problem of single-color bright bars in this area, which can improve the display effect of the first display area AA1.
- the substrate 301 may be made of light-transmitting materials such as glass and polyimide (PI).
- the device layer 302 of the second display area AA2 may include a pixel circuit for driving each sub-pixel to display.
- the pixel definition layer 303 includes a first pixel opening K1 located in the first display area AA1. In some embodiments, the pixel definition layer 303 includes a second pixel opening located in the second display area AA2.
- Each sub-pixel 101, 102, 103 includes a light emitting structure 111, a first electrode 112, and a second electrode 113.
- the light emitting structure 111 of the first display area AA1 is located in the first pixel opening K1
- the first electrode 112 is located on the side of the light emitting structure 111 facing the substrate 301
- the second electrode 113 is located on the side of the light emitting structure 111 away from the substrate 301 .
- One of the first electrode 112 and the second electrode 113 is an anode, and the other is a cathode.
- the first electrode 112 is an anode and the second electrode 113 is a cathode as an example for description.
- the light emitting structure 111 may include an OLED light emitting layer. According to the design requirements of the light emitting structure 111, it 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 112 is a light-transmitting electrode.
- the first electrode 112 includes an indium tin oxide (Indium Tin Oxide, ITO) layer or an indium zinc oxide layer.
- the first electrode 112 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 may be ITO, indium zinc oxide, etc.
- the reflective layer may be a metal layer, for example, made of silver.
- the second electrode 113 includes a magnesium-silver alloy layer. In some embodiments, the second electrode 113 may be interconnected as a common electrode.
- the orthographic projection of each light-emitting structure 111 of the first display area AA1 on the substrate 301 is composed of one first graphic unit or a 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 orthographic projection of each first electrode 112 of the first display area AA1 on the substrate 301 is composed of a second graphic unit or a splicing of two or more second graphic units.
- 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 shape, and a rectangle.
- the above shape can change the periodic structure produced by diffraction, that is, change the distribution of the diffraction field, thereby reducing the diffraction effect generated when external incident light passes through the first display area AA1, thereby ensuring that the camera set below the first display area AA1 takes pictures.
- the image has high definition.
- 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 there is no need to provide a polarizer, so as to prevent the polarizer from affecting the light collection amount of the photosensitive element arranged below the first display area AA1.
- a polarizer can also be arranged above the encapsulation layer of the first display area AA1.
- the 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 above-mentioned embodiment.
- FIG. 8 shows a schematic top view of a display device provided according to an embodiment of the present application.
- Fig. 9 shows a cross-sectional view along the line C-C in Fig. 8 provided by an embodiment.
- the display panel 100 may be the display panel 100 of one of the foregoing embodiments.
- 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 display panel 100 includes a first surface S1 and a second surface S2 opposed to each other.
- the first surface S1 is the display surface.
- the display device also includes a photosensitive assembly 200.
- the photosensitive component 200 is located on the second surface S2 side of the display panel 100, and the photosensitive component 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.
- 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 projector.
- 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.
- 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 first electrodes of adjacent sub-pixels of the same color in the repeating unit 10 in the first display area AA1 are electrically connected through an interconnection structure to form a pixel group of the same color.
- the multiple pixels included in the repeating unit in the first display area become one pixel, so that the actual PPI (Pixel Per Inch) of the first display area AA1 can be reduced.
- PPI Pixel Per Inch
- the interconnection structure of at least one color of the same color pixel group is a transparent conductive structure, which can further increase the light transmittance of the central area AA11 of the first display area AA1 and reduce the photographing effect Impact.
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Abstract
Description
Claims (20)
- 一种显示面板,具有第一显示区以及第二显示区,所述第一显示区包括中心区域及与所述中心区域相邻的边缘区域,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:多个重复单元,各所述重复单元包括至少两个像素,每个所述像素包括至少三种颜色的子像素,各所述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;在所述第一显示区中,所述重复单元中相同颜色的相邻子像素的第一电极通过互连结构电连接,以形成同色像素组。
- 根据权利要求1所述的显示面板,其中,在所述中心区域中,至少一种颜色的所述同色像素组的互连结构为透明导电结构。
- 根据权利要求1所述的显示面板,其中,所述多个子像素与所述第一电极互连形成像素合并结构,所述同色像素组的多个子像素电连接至同一像素电路,从而通过一个像素电路控制多个互连的子像素。
- 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衬底,所述像素设置在所述衬底上;所述像素包括三种颜色的子像素,对应的所述同色像素组具有第一颜色的第一同色像素组、第二颜色的第二同色像素组及第三颜色的第三同色像素组,其中,所述第一同色像素组的互连结构与所述第二同色像素组的互连结构在所述衬底上的正投影不相交;所述第三同色像素组的互连结构与所述第一同色像素组的互连结构和/或所述第二同色像素组的互连结构在所述衬底上的正投影相交。
- 根据权利要4所述的显示面板,其中,在所述中心区域中,所述第一同色像素组的互连结构及所述第二同色像素组的互连结构为与所述第一电极同层设置的透明导电结构,所述第三同色像素组的互连结构与所述第一同色像素组的互连结构及所述第二同色像素组的互连结构不同层;在所述边缘区域中,所述第一同色像素组的互连结构及所述第二同色 像素组的互连结构与所述第一电极同层设置,所述第三同色像素组的互连结构与所述第一同色像素组的互连结构及所述第二同色像素组的互连结构不同层设置;在所述边缘区域中,所述第一同色像素组的互连结构及所述第二同色像素组的互连结构与所述第一电极的材料相同,或者为透明导电结构。
- 根据权利要5所述的显示面板,其中,所述中心区域及所述边缘区域的第一同色像素组、第二同色像素组对应的引线为与所述第一电极同层设置的透明导电结构。
- 根据权利要4所述的显示面板,其中,在所述中心区域中,所述第一同色像素组的互连结构及所述第二同色像素组的互连结构为设置在所述第一电极下方的透明导电结构,所述第三同色像素组的互连结构与所述第一同色像素组的互连结构及所述第二同色像素组的互连结构不同层;在所述边缘区域中,所述第一同色像素组的互连结构及所述第二同色像素组的互连结构与所述第一电极同层设置,所述第三同色像素组的互连结构与所述第一同色像素组的互连结构及所述第二同色像素组的互连结构不同层设置;在所述边缘区域中,所述第一同色像素组的互连结构及所述第二同色像素组的互连结构与所述第一电极的材料相同,或者为透明导电结构。
- 根据权利要7所述的显示面板,其中,所述中心区域的第一同色像素组、第二同色像素组对应的引线为与所述中心区域的第一同色像素组的互连结构及第二同色像素组的互连结构同层设置的透明导电结构。
- 根据权利要3所述的显示面板,其中,在所述中心区域中,所述第一同色像素组的互连结构及所述第二同色像素组的互连结构为设置在所述第一电极下方的透明导电结构,所述第三同色像素组的互连结构与所述第一同色像素组的互连结构及所述第二同色像素组的互连结构不同层;在所述边缘区域中,所述第一同色像素组的互连结构及所述第二同色像素组的互连结构为设置在所述第一电极下方的透明导电结构,所述第三 同色像素组的互连结构与所述第一同色像素组的互连结构及所述第二同色像素组的互连结构不同层设置;所述中心区域的所述第一同色像素组的互连结构及所述第二同色像素组的互连结构与所述边缘区域的所述第一同色像素组的互连结构及所述第二同色像素组的互连结构位于同一层。
- 根据权利要9所述的显示面板,其中,所述中心区域的第一同色像素组、第二同色像素组对应的引线为与所述中心区域的第一同色像素组的互连结构及第二同色像素组的互连结构同层设置的透明导电结构。
- 根据权利要9所述的显示面板,其中,所述边缘区域的第一同色像素组、第二同色像素组对应的引线为与所述边缘区域的第一同色像素组的互连结构及第二同色像素组的互连结构同层设置的透明导电结构。
- 根据权利要3所述的显示面板,其中,在所述中心区域中,所述第一同色像素组的互连结构及所述第二同色像素组的互连结构为与所述第一电极同层设置的透明导电结构,所述第三同色像素组的互连结构与所述第一同色像素组的互连结构及所述第二同色像素组的互连结构不同层;在所述边缘区域中,所述第一同色像素组的互连结构及所述第二同色像素组的互连结构为设置在所述第一电极下方的透明导电结构,所述第三同色像素组的互连结构与所述第一同色像素组的互连结构及所述第二同色像素组的互连结构不同层设置。
- 根据权利要12所述的显示面板,其中,所述中心区域的第一同色像素组、第二同色像素组对应的引线为与所述第一电极同层设置的透明导电结构。
- 根据权利要12所述的显示面板,其中,所述边缘区域的第一同色像素组、第二同色像素组对应的引线为与所述边缘区域的第一同色像素组的互连结构及第二同色像素组的互连结构同层设置的透明导电结构。
- 根据权利要3至14任一项所述的显示面板,其中,所述显示面板还包括:器件层,位于所述衬底上,包括平坦化层及至少一层金属层,所述金 属层位于所述衬底与所述平坦化层之间;其中,所述至少一层金属层中的一层金属层为所述第三同色像素组的互连结构,所述第三同色像素组的互连结构通过过孔与对应的所述第一电极电连接。
- 根据权利要求1所述的显示面板,其中,所述第二显示区包括第一子显示区以及邻接所述第一子显示区与所述第一显示区的第二子显示区,所述第一显示区的子像素对应的像素电路设置在所述第二子显示区内;所述第一显示区的子像素对应的像素电路的电路结构包括1个薄膜晶体管、2个薄膜晶体管和1个电容、3个薄膜晶体管和1个电容、6个薄膜晶体管和1个电容、6个薄膜晶体管和2个电容、7个薄膜晶体管和1个电容、7个薄膜晶体管和2个电容、或9个薄膜晶体管和1个电容中的任一种。
- 根据权利要求1所述的显示面板,其中,所述显示面板还包括衬底,所述像素设置在所述衬底上;所述重复单元的至少两个像素在第一方向上交替分布,任意相邻的两个像素的各子像素均沿第二方向排列且在所述第一方向上错位。
- 根据权利要求16所述的显示面板,其中,所述第一显示区的发光结构在所述衬底上的正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。
- 根据权利要求16所述的显示面板,其中,所述第一显示区的第一电极在所述衬底上的正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。
- 根据权利要求16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;或者,所述第一显示区的第一电极为反射电极;或者,所述第一显示区的第一电极包括氧化铟锡层或氧化铟锌层,和/或,所述第一显示区的第二电极包括镁银合金层。
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JP2021566231A JP7280979B2 (ja) | 2019-10-29 | 2020-07-17 | 表示パネル及び表示装置 |
US17/500,132 US11645966B2 (en) | 2019-10-29 | 2021-10-13 | Display panel and display device |
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CN110783386B (zh) | 2019-10-29 | 2020-12-25 | 昆山国显光电有限公司 | 显示面板及显示装置 |
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JP7280979B2 (ja) | 2023-05-24 |
TWI749662B (zh) | 2021-12-11 |
US20220036795A1 (en) | 2022-02-03 |
CN110783386A (zh) | 2020-02-11 |
EP3951882A1 (en) | 2022-02-09 |
US11645966B2 (en) | 2023-05-09 |
EP3951882A4 (en) | 2023-01-11 |
TW202044639A (zh) | 2020-12-01 |
CN110783386B (zh) | 2020-12-25 |
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KR20210138780A (ko) | 2021-11-19 |
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