CN117479741A - Display panel - Google Patents

Display panel Download PDF

Info

Publication number
CN117479741A
CN117479741A CN202310701156.1A CN202310701156A CN117479741A CN 117479741 A CN117479741 A CN 117479741A CN 202310701156 A CN202310701156 A CN 202310701156A CN 117479741 A CN117479741 A CN 117479741A
Authority
CN
China
Prior art keywords
display area
light
emitting elements
light emitting
row
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202310701156.1A
Other languages
Chinese (zh)
Inventor
赵洋籽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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 Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to CN202310701156.1A priority Critical patent/CN117479741A/en
Publication of CN117479741A publication Critical patent/CN117479741A/en
Pending legal-status Critical Current

Links

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
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
    • H10K59/65—OLEDs integrated with inorganic image sensors
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

The application provides a display panel, this display panel includes the display area, the display area includes the printing opacity display area and sets up in the peripheral main display area of printing opacity display area, through add the transition display area between main display area and printing opacity display area, and make the density of the light emitting component of printing opacity display area be less than the density of the light emitting component of transition display area, the density of the light emitting component of transition display area is less than the density of the light emitting component of main display area, make the luminance of printing opacity display area to main display can evenly transition, avoid producing the phenomenon emergence that produces the luminance mutation and lead to the screen division between printing opacity display area and main display area, still make the arbitrary adjacent row of printing opacity display area and all light emitting component dislocation set in the adjacent row simultaneously, make the luminance of transition display area and printing opacity display area more even, with this granule sense that lightens printing opacity display area and transition display area.

Description

Display panel
Technical Field
The application relates to the technical field of display, in particular to a display panel.
Background
The organic light emitting diode (Organic Light Emitting Diode, OLED) display technology has the advantages of capability of self-luminescence, high luminous efficiency, quick response time and the like. With the progress of screen production technology, in order to pursue higher screen duty and higher integration of electronic components, an under-screen image capturing (Camera Under Panel, CUP) technology with a display function has been developed gradually.
An OLED display panel in an under-screen camera technology generally includes a main display area and a light-transmitting display area, and external ambient light can be emitted into a camera through a gap area between sub-light-emitting elements in the light-transmitting display area, thereby realizing imaging. However, in the existing under-screen camera shooting technology, the light transmittance of the light-transmitting display area needs to be improved by reducing the resolution of the light-transmitting display area, when a mobile phone displays pictures, the resolution of the main display area is higher, the display pictures are uniform, the resolution of the light-transmitting display area is lower, the luminous elements are visible visually, obvious granular sense exists in the display pictures, and the phenomenon that the main display area and the light-transmitting display area are separated is caused.
Therefore, it is necessary to provide a display panel to improve this defect.
Disclosure of Invention
The embodiment of the application provides a display panel, which can lighten the granular sense of a light-transmitting display area, and ensure that the brightness of a main display area and the brightness of the light-transmitting display area are evenly transited, so that the phenomenon that the main display area and the light-transmitting display area are separated is avoided.
The embodiment of the application provides a display panel, which comprises a display area, wherein the display area is provided with a plurality of light-emitting elements, the light-emitting elements are arranged in a column along a column direction, the light-emitting elements are arranged in a row along a row direction, the row direction is intersected with the row direction, and the display area comprises a light-transmitting display area, a main display area arranged at the periphery of the light-transmitting display area and a transition display area arranged between the main display area and the light-transmitting display area;
wherein the density of the light emitting elements of the light transmissive display region is less than the density of the light emitting elements of the transitional display region, the density of the light emitting elements of the transitional display region is less than the density of the light emitting elements of the main display region; all the light-emitting elements in any two adjacent rows and two adjacent columns of the light-transmitting display area are arranged in a staggered mode, and part of the light-emitting elements in any two adjacent rows and two adjacent columns of the transition display area are arranged in a staggered mode.
According to an embodiment of the present application, a part of the light emitting elements in a row of the transition display area closest to the light transmission display area and the light emitting elements in a row of the light transmission display area closest to the transition display area are arranged in a staggered manner;
and part of the light-emitting elements in the column closest to the light-transmitting display area and the light-emitting elements in the column closest to the light-transmitting display area are arranged in a staggered mode.
According to an embodiment of the present application, the transition display area has a plurality of light emitting units distributed at intervals along the row direction and the column direction, and the light emitting units include at least two light emitting elements arranged side by side or side by side;
and in the direction of the light-transmitting display area towards the main display area, the number of the light-emitting elements in the light-emitting units is gradually increased, part of the light-emitting elements in any two adjacent rows and two adjacent columns of the light-emitting units are arranged in a staggered mode, at least one column of the light-emitting elements is arranged between two adjacent light-emitting units in the same row, and at least one row of the light-emitting elements is arranged between two adjacent light-emitting units in the same column.
According to an embodiment of the present application, the density of the light emitting elements of the transition display area gradually increases in a direction of the light transmitting display area toward the main display area.
According to an embodiment of the present application, in a direction in which the light-transmitting display area faces the main display area, the number of the light-emitting elements of the transition display area increases row by row;
alternatively, in a direction in which the light-transmitting display area faces the main display area, the number of the light-emitting elements of the transition display area increases every N lines at intervals, N being an integer greater than or equal to 1.
According to an embodiment of the present application, the difference between the numbers of the light emitting elements in any two adjacent rows of the transition display area is an integer greater than or equal to 1, and the difference between the numbers of the light emitting elements in any two adjacent rows of the transition display area is equal.
According to an embodiment of the application, the display panel has a plurality of external pixel driving circuits, the external pixel driving circuits are electrically connected with the light emitting elements of the light-transmitting display area, and the plurality of external pixel driving circuits are disposed in the transition display area and/or the main display area.
According to an embodiment of the present application, at least two light emitting elements of the light-transmitting display area are electrically connected to the same external pixel driving circuit.
According to an embodiment of the present application, the display panel has a plurality of metal signal lines and a plurality of transparent conductive signal lines, the light emitting elements electrically connected to the same external pixel driving circuit are connected through the transparent conductive signal lines, and the metal signal lines are connected to the transparent conductive signal lines or one of at least two light emitting elements.
According to an embodiment of the present application, the light emitting element includes an anode, a light emitting layer disposed on the anode, and a cathode disposed on the light emitting layer, and the transparent conductive signal line is connected to the anode;
wherein the transparent conductive signal line and the anode are arranged on the same layer.
The beneficial effects of the embodiment of the application are that: the embodiment of the application provides a display panel, this display panel includes the display area, the display area has a plurality of luminescent element, a plurality of luminescent element arrange along the row direction and set up into the row, a plurality of luminescent element arrange along the row direction and set up in the peripheral main display area of printing opacity display area, through addding the transition display area between main display area and printing opacity display area, and make the density of luminescent element of printing opacity display area be less than the density of luminescent element of transition display area, the density of luminescent element of transition display area is less than the density of luminescent element of main display area, make the luminance of printing opacity display area to main display can evenly transition, avoid producing the phenomenon emergence that the luminance mutation leads to the partition screen between printing opacity display area and main display area, still make all luminescent element dislocation set in arbitrary adjacent two rows of printing opacity display area and adjacent two rows in the partial luminescent element dislocation set up, make the luminance of transition display area and printing opacity display area more even, with this lightening the sense of printing opacity display area and transition display area.
Drawings
Fig. 1 is a schematic structural diagram of a display area of a first display panel according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a display area of a second display panel according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a display area of a third display panel according to an embodiment of the present disclosure;
fig. 4 is a partial cross-sectional view of a display panel according to an embodiment of the present application.
Detailed Description
The following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments that can be used to practice the present application. The directional terms mentioned in this application, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], etc., are only referring to the directions of the attached drawings. Accordingly, directional terminology is used to describe and understand the application and is not intended to be limiting of the application. In the drawings, like elements are designated by like reference numerals.
The present application is further described below with reference to the drawings and specific examples.
The embodiment of the application provides a display panel, which can lighten the granular sense of a light-transmitting display area, and ensure that the brightness of a main display area and the brightness of the light-transmitting display area are evenly transited, so that the phenomenon that the main display area and the light-transmitting display area are separated is avoided.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a display area of a first display panel according to an embodiment of the present application, where the display area includes a plurality of light emitting elements 1, the plurality of light emitting elements 1 are arranged in rows along a row direction X, the plurality of light emitting elements 1 are arranged in columns along a column direction Y, and the row direction X intersects the column direction Y.
In the embodiment of the present application, the row direction X is perpendicular to the column direction Y, and the row direction X may refer to a horizontal lateral direction under the viewing angle as shown in fig. 1, and the column direction Y may refer to a vertical direction under the viewing angle as shown in fig. 1.
The display area comprises a main display area AA1, a transitional display area AA2 and a light-transmitting display area AA3, wherein the main display area AA1 is arranged on the periphery of the light-transmitting display area AA3, and the transitional display area AA2 is arranged between the main display area AA1 and the light-transmitting display area AA3.
The main display area AA1 is mainly used for realizing the image display function, the main display area AA1 can occupy most of the area of the display area AA, and other part of the area of the display area AA can be used for placing the transition display area AA2 and the light-transmitting display area AA3. The light-transmitting display area AA3 not only can display the image picture simultaneously with the main display area AA1 to realize the effect of full-screen display, but also has higher light transmittance, and is used for providing a path for light passing through for the photosensitive element arranged below the light-transmitting display area AA3. The photosensitive element may be, but is not limited to, an optical sensor such as a camera, a distance sensor, an infrared sensor, or the like.
The density of the light emitting elements 1 of the light transmitting display area AA3 is smaller than the density of the light emitting elements 1 of the transition display area AA2, and the density of the light emitting elements 1 of the transition display area AA2 is smaller than the density of the light emitting elements of the main display area. The density of the light emitting elements 1 is related to the brightness of the corresponding display area, and the greater the density of the light emitting elements 1, the greater the brightness of the corresponding display area, the greater the brightness of the main display area AA1, and the brightness of the transitional display area AA2, and the brightness of the transparent display area AA 1. By additionally arranging the transition display area AA2 with the brightness between the light-transmitting display area AA3 and the main display area AA1, the brightness from the light-transmitting display area AA3 to the main display area AA1 can be uniformly transited, and the phenomenon of split screen caused by brightness mutation on visual effect is avoided.
In this embodiment, all the light emitting elements 1 in any two adjacent rows and two adjacent columns of the transparent display area AA3 are arranged in a staggered manner, and part of the light emitting elements 1 in any two adjacent rows and two adjacent columns of the transition display area AA2 are arranged in a staggered manner.
Referring to fig. 1, taking a first row and a second row of light emitting elements in the light-transmitting display area AA3 as an example, all the light emitting elements in the first row and all the light emitting elements in the second row are arranged in a staggered manner, i.e., the light emitting elements in the first row and the light emitting elements in the second row are not in the same column, the light emitting elements in the second row and the plurality of light emitting elements in the first row are not in the same column, and the light emitting elements in the first row and the light emitting elements in the second row may be in adjacent columns or at least one column apart. Taking the first and second columns of light emitting elements in the light-transmitting display area AA3 as an example, all the light emitting elements in the first column and all the light emitting elements in the second column are arranged in a staggered manner, the light emitting elements in the first column and the light emitting elements in the second column are not in the same row, the light emitting elements in the second column and the plurality of light emitting elements in the first column are not in the same row, and the light emitting elements in the first column and the light emitting elements in the second column may be in adjacent rows or arranged at least one row apart.
Taking the first row and the second row of light emitting elements in the transitional display area AA2 as an example, part of the light emitting elements in the first row and part of the light emitting elements in the second row are arranged in a staggered manner, that is, part of the light emitting elements in the first row do not have light emitting elements in the same column as the light emitting elements in the second row, and the other part of the light emitting elements in the first row have light emitting elements in the same column as the light emitting elements in the second row. Taking the first row and the second row of light emitting elements in the transitional display area AA2 as an example, part of the light emitting elements in the first row and part of the light emitting elements in the second row are arranged in a staggered manner, that is, part of the light emitting elements in the first row have no light emitting elements in the second row, and the other part of the light emitting elements in the first row have light emitting elements in the second row.
In this embodiment, all the light emitting elements 1 in any two adjacent rows and two adjacent columns of the transparent display area AA3 are arranged in a staggered manner, and part of the light emitting elements 1 in any two adjacent rows and two adjacent columns of the transition display area AA2 are arranged in a staggered manner, so that the light emitting elements 1 in the transition display area AA2 and the transparent display area AA3 are distributed more uniformly, the brightness of the transition display area AA2 and the transparent display area AA3 is more uniform, and the granular feel of the transition display area AA2 and the transparent display area AA3 can be reduced.
In this embodiment, a portion of the light emitting elements in the row closest to the transmissive display area AA3 in the transitional display area AA2 are arranged in a staggered manner with respect to a portion of the light emitting elements in the row closest to the transmissive display area AA3 in the transitional display area AA2, and a portion of the light emitting elements in the column closest to the transmissive display area AA3 in the transitional display area AA2 are arranged in a staggered manner with respect to a portion of the light emitting elements in the column closest to the transmissive display area AA3 in the transitional display area AA2.
Referring to fig. 1, a portion of light emitting elements in a row closest to the transition display area AA3 in the transition display area AA2 have no light emitting elements in the same row as the light emitting elements in the row closest to the transition display area AA2 in the light transmitting display area AA3, and another portion of light emitting elements in the row closest to the transition display area AA3 in the transition display area AA3 have light emitting elements in the same row as the light emitting elements in the row closest to the transition display area AA2 in the light transmitting display area AA3. Some light emitting elements in the column of the transition display area AA2 closest to the light transmitting display area AA3 have no light emitting elements located in the same row as those in the light transmitting display area AA3 in the column of the transition display area AA2 closest to the light transmitting display area AA2, and other light emitting elements in the column of the transition display area AA2 closest to the light transmitting display area AA3 have light emitting elements located in the same row as those in the light transmitting display area AA3 in the column closest to the transition display area AA2. Under this structure, can make the luminous element distribution of printing opacity display area AA3 and transition display area AA2 juncture more even to can make the luminance of both juncture more even, avoid producing comparatively obvious graininess at both juncture.
In some embodiments, the transitional display area AA2 has a plurality of light emitting units distributed at intervals along the row direction and the column direction, where the light emitting units include at least two light emitting elements arranged side by side or side by side, and in the direction of the transparent display area AA3 towards the main display area AA1, the number of light emitting elements in the light emitting units gradually increases, some light emitting elements in any two adjacent rows and two adjacent columns of light emitting units are arranged in a staggered manner, at least one column of light emitting elements is spaced between two adjacent light emitting units in the same row, and at least one row of light emitting elements is spaced between two adjacent light emitting units in the same column.
In one embodiment, referring to fig. 1, the transitional display area AA2 has a plurality of light emitting units 10 spaced along the row direction and the column direction, the light emitting units 10 spaced along the row direction X have 2 or 3 light emitting elements 1 arranged side by side along the row direction X, a column of light emitting elements is spaced between two adjacent light emitting units 10 in the same row, that is, no light emitting element 1 is arranged between two adjacent light emitting units 10 in the same row, and a gap between two adjacent light emitting units 10 in the same row can only accommodate one light emitting element 1.
The light emitting units distributed at intervals along the column direction Y have 2 or 3 light emitting elements 1 arranged side by side along the column direction Y, one row of light emitting elements is spaced between two adjacent light emitting units 10 of the same column, that is, no light emitting element 1 is arranged between two adjacent light emitting units 10 of the same column, and a gap between two adjacent light emitting units 10 of the same column can accommodate only one light emitting element 1.
In practical applications, 2 columns and more of light emitting elements may be spaced between two adjacent light emitting units 10 in the same row, and 2 rows and more of light emitting elements may be spaced between two adjacent light emitting units 10 in the same column, which is not limited herein.
In the direction of the light-transmitting display area AA3 toward the main display area AA1, the number of light-emitting elements in the light-emitting units 10 gradually increases, wherein the number of light-emitting elements in two rows and two columns of light-emitting units 10 closer to the light-transmitting display area AA3 is equal, each of the light-emitting units has 2 light-emitting elements, and each of the light-emitting units 10 in one row and one column farther from the light-transmitting display area AA3 has 3 light-emitting elements.
It should be noted that fig. 1 only illustrates a limited number of light emitting units 10, and does not represent the number of light emitting units 10 and the number of light emitting elements 1 in each light emitting unit 10 in practical use. In practical applications, the light emitting unit 10 may further have 4 or more light emitting elements, and the light emitting units 10 having different numbers of light emitting elements may surround the light transmitting display area AA3 layer by layer in the direction from the light transmitting display area AA3 toward the main display area AA1 in order from less to more. The number of light emitting elements of the light emitting units of the two adjacent rows and the two adjacent columns is equal, but the whole tends to gradually increase in the direction of the light transmitting display area AA3 toward the main display area AA 1.
The fact that some light emitting elements 1 in any two adjacent rows of light emitting units 10 are arranged in a staggered manner means that some light emitting elements in one row of light emitting units are in the same column as some light emitting elements in an adjacent row of light emitting units, and other part of light emitting elements in one row of light emitting units are not in the same column as the other part of light emitting elements in the adjacent row of light emitting units. The fact that some light emitting elements 1 in any two adjacent columns of light emitting units 10 are arranged in a staggered manner means that some light emitting elements in one column of light emitting units are in the same row as some light emitting elements in an adjacent column of light emitting units, and other part of light emitting elements in one column of light emitting units are not in the same row as the other part of light emitting elements in the adjacent column of light emitting units. With this structure, the light emitting elements in the transitional display area AA2 can be arranged in a staggered manner in the form of light emitting units, so that the brightness of the transitional display area AA2 can be ensured, and the granular sensation of the transitional display area AA2 can be reduced.
In some embodiments, the density of light emitting elements of the transitional display area AA2 increases gradually in the direction of the light-transmitting display area AA3 toward the main display area AA 1. Under the structure, the brightness of the transitional display area AA2 can be gradually increased in the direction of the light-transmitting display area AA3 towards the main display area AA1, the brightness of the part, close to the light-transmitting display area AA3, of the transitional display area AA2 is close to the brightness of the light-transmitting display area AA3, and the brightness of the part, close to the main display area AA1, of the transitional display area AA2 is close to the brightness of the main display area AA1, so that the brightness from the light-transmitting display area AA3 to the main display area AA1 can be more uniformly transited, and the phenomenon of split screen caused by brightness mutation on visual effect is avoided.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a display area of a second display panel according to an embodiment of the present application, and the structure of the display area is substantially the same as that of the display panel shown in fig. 1, except that: in the direction of the light-transmitting display area AA3 toward the main display area AA1, the number of light-emitting elements of the transition display area AA2 increases row by row, i.e., the number of light-emitting elements in a row farther from the light-transmitting display area AA3 is greater than the number of light-emitting elements in a row nearer to the light-transmitting display area AA3.
In one embodiment, the difference between the numbers of any two adjacent rows of light emitting elements in the transitional display area AA2 is 1, that is, 1 light emitting element is added row by row in the transitional display area AA2 in the direction of the light transmitting display area AA3 toward the main display area AA1, and the light emitting elements filled with oblique lines in fig. 2 are newly added light emitting elements of each row.
In other embodiments, the difference between the numbers of the adjacent two rows of light emitting elements in the transitional display area AA2 is not limited to 1, and only needs to be an integer greater than or equal to 1, for example, the difference between the numbers of the adjacent two rows of light emitting elements in the transitional display area AA2 may be 2, 3, or 4 or more. The difference between the numbers of any two adjacent rows of light emitting elements may be equal or unequal, and the present invention is not limited thereto.
In other embodiments, the number of light emitting elements of the transitional display area AA2 increases every N rows in the direction of the light transmissive display area AA3 toward the main display area AA 1. For example, when N is 1, in the direction of the light-transmitting display area AA3 toward the main display area AA1, the number of light-emitting elements of the transition display area AA2 increases every 1 line, assuming that the light-emitting element of the line closest to the light-transmitting display area AA3 is the first line, the number of light-emitting elements of the first line and the second line are equal, the number of light-emitting elements of the third line and the fourth line are equal and greater than the number of light-emitting elements of the first line and the second line, and so on. In practical applications, N is not limited to 1 in the above embodiments, but N may be an integer greater than 1, for example, 2, 3, or 4 and above.
In some embodiments, the display panel has a plurality of external pixel driving circuits electrically connected to the light emitting elements of the light transmissive display region, and the plurality of external pixel driving circuits are disposed in the transition display region and/or the main display region. The display panel is also provided with a plurality of pixel driving circuits arranged in the main display area and the transition display area, and the pixel driving circuits are electrically connected with the light-emitting elements of the transition display area or the main display area. The circuit structures of the pixel driving circuit and the external pixel driving circuit can be the same or different, and the pixel driving circuit and the external pixel driving circuit are provided with metal film layers, so that the external pixel driving circuit is arranged in the transition display area and/or the main display area, the metal film layers in the light-transmitting display area AA3 can be reduced, the light transmittance of the light-transmitting display area AA3 can be improved, and the photographing effect of under-screen photographing is improved.
In one embodiment, referring to fig. 3, fig. 3 is a schematic structural diagram of a display area of a third display panel provided in the embodiment of the present application, the display panel has a plurality of external pixel driving circuits 3, and black dots in fig. 3 are the external pixel driving circuits 3, the external pixel driving circuits 3 are electrically connected with the light emitting elements 1 of the light-transmitting display area AA3, and the plurality of external pixel driving circuits 3 are disposed in the transitional display area AA2. The external pixel driving circuit 3 may be specifically disposed between adjacent light emitting elements of the transitional display area AA2, so that the influence of the external pixel driving circuit 3 on the display effect of the transitional display area AA2 can be avoided.
In other embodiments, the plurality of external pixel driving circuits 3 may also be disposed in the main display area AA1 and the transitional display area AA2, respectively; alternatively, the plurality of external pixel driving circuits 3 may be disposed only in the main display area AA1, so that the effect of improving the light transmittance of the light-transmitting display area AA3 can be achieved.
In some embodiments, at least two of the light emitting elements of the light-transmitting display area AA3 are electrically connected to the same external pixel driving circuit 3.
In one embodiment, referring to fig. 3, each external pixel driving circuit 3 is electrically connected to two light emitting elements in the transparent display area AA3, and the colors of the light emitted by the two light emitting elements electrically connected to the same external pixel driving circuit 3 are the same.
In other embodiments, the number of light emitting elements electrically connected to the same external pixel driving circuit 3 is not limited to 2 in the above embodiments, but may be 3 or more, and is not limited herein. With this structure, 2 or more light emitting elements of the transmissive display area AA3 are driven by one external pixel driving circuit, so that the number of external pixel driving circuits 3 and the number of metal wires for connecting the external pixel driving circuits 3 and the light emitting elements 1 can be reduced, and the light transmittance of the transmissive display area AA3 can be further improved.
In some embodiments, the display panel has a plurality of metal signal lines 4 and a plurality of transparent conductive signal lines 5, the light emitting elements 1 electrically connected to the same external pixel driving circuit 3 are connected through the transparent conductive signal lines 5, and the metal signal lines 4 are connected to the transparent conductive signal lines 5 or one of at least two light emitting elements 1. The transparent conductive signal line 5 is adopted in the light-transmitting display area AA3 to replace the metal signal line 4, so that the metal film layer in the light-transmitting display area AA3 can be further reduced, and the light transmittance of the light-transmitting display area AA3 can be further improved.
In one embodiment, one end of the metal signal line 4 is connected to the external pixel driving circuit 3, the other end of the metal signal line 4 is connected to one of the two light emitting elements, and the external pixel driving circuit 3 transmits the driving signal to one of the light emitting elements through the metal signal line 4, and then transmits the driving signal to the other light emitting element through the transparent conductive signal line 5.
In one embodiment, referring to fig. 3, two light emitting elements electrically connected to the same external pixel driving circuit 3 are connected through a transparent conductive signal line 5, one end of a metal signal line 4 is connected to the external pixel driving circuit 3, and the other end of the metal signal line 4 is connected to the transparent conductive signal line 5. The external pixel driving circuit 3 transmits driving signals to the two light emitting elements through the metal signal line 4 and the transparent conductive signal line 5 at the same time, so that delay between the two light emitting elements electrically connected to the same external pixel driving circuit 3 can be reduced.
In one embodiment, referring to fig. 4, fig. 4 is a partial cross-sectional view of a display panel according to an embodiment of the present application, where the display panel includes a substrate 11, and a first metal layer 12, a gate insulating layer 13, an active layer 14, an interlayer dielectric layer 15, a second metal layer 16, a planarization layer 17, a transparent electrode layer 18, a pixel defining layer 19, a light emitting layer 20, and a cathode 21 sequentially stacked on the substrate 11. The metal signal line 4 is made of the same material as the second metal layer 16 and is provided in the same layer as the second metal layer 16.
The transparent electrode layer 18 has a plurality of patterned anodes 181, and the light emitting element 1 includes an anode 181, a light emitting layer 20 disposed on the anode 181, and a cathode 21 disposed on the light emitting layer 20. The transparent conductive signal line 5 is connected to the metal signal line 4 through the flat layer 17, the transparent conductive signal line 5 is also connected to the anode 181 of the plurality of light emitting elements 1, the transparent conductive signal line 5 is made of the same material as the anode 181, and is provided in the same layer as the anode 181. In the actual manufacturing process, the transparent conductive signal line 5 may be formed by using the process of the transparent electrode layer 18 in synchronization.
It should be noted that, fig. 4 only illustrates the film relationship between the transparent conductive signal line 5 and the anode, and the film structure of the display panel shown in fig. 4 does not represent the film structure of the display panel in practical application, and the film structure of the display panel may refer to the film structure of the existing display panel, which is not limited herein.
The beneficial effects of the embodiment of the application are that: the embodiment of the application provides a display panel, this display panel includes the display area, the display area has a plurality of luminescent element, a plurality of luminescent element arrange along the row direction and set up into the row, a plurality of luminescent element arrange along the row direction and set up in the peripheral main display area of printing opacity display area, through addding the transition display area between main display area and printing opacity display area, and make the density of luminescent element of printing opacity display area be less than the density of luminescent element of transition display area, the density of luminescent element of transition display area is less than the density of luminescent element of main display area, make the luminance of printing opacity display area to main display can evenly transition, avoid producing the phenomenon emergence that the luminance mutation leads to the partition screen between printing opacity display area and main display area, still make all luminescent element dislocation set in arbitrary adjacent two rows of printing opacity display area and adjacent two rows in the partial luminescent element dislocation set up, make the luminance of transition display area and printing opacity display area more even, with this lightening the sense of printing opacity display area and transition display area.
In summary, although the present application discloses the preferred embodiments, the preferred embodiments are not intended to limit the application, and those skilled in the art can make various modifications and alterations without departing from the spirit and scope of the application, so the scope of the application is defined by the claims.

Claims (10)

1. The display panel is characterized by comprising a display area, wherein the display area is provided with a plurality of light-emitting elements, the light-emitting elements are arranged in a column along a column direction, the light-emitting elements are arranged in a row along a row direction, the row direction is intersected with the row direction, and the display area comprises a light-transmitting display area, a main display area arranged at the periphery of the light-transmitting display area and a transition display area arranged between the main display area and the light-transmitting display area;
wherein the density of the light emitting elements of the light transmissive display region is less than the density of the light emitting elements of the transitional display region, the density of the light emitting elements of the transitional display region is less than the density of the light emitting elements of the main display region; all the light-emitting elements in any two adjacent rows and two adjacent columns of the light-transmitting display area are arranged in a staggered mode, and part of the light-emitting elements in any two adjacent rows and two adjacent columns of the transition display area are arranged in a staggered mode.
2. The display panel of claim 1, wherein a portion of the light emitting elements in a row of the transition display region nearest the light transmissive display region are offset from the light emitting elements in a row of the light transmissive display region nearest the transition display region;
and part of the light-emitting elements in the column closest to the light-transmitting display area and the light-emitting elements in the column closest to the light-transmitting display area are arranged in a staggered mode.
3. The display panel of claim 1, wherein the transitional display region has a plurality of light emitting units spaced apart along the row direction and the column direction, the light emitting units including at least two of the light emitting elements arranged side by side or side by side;
and in the direction of the light-transmitting display area towards the main display area, the number of the light-emitting elements in the light-emitting units is gradually increased, part of the light-emitting elements in any two adjacent rows and two adjacent columns of the light-emitting units are arranged in a staggered mode, at least one column of the light-emitting elements is arranged between two adjacent light-emitting units in the same row, and at least one row of the light-emitting elements is arranged between two adjacent light-emitting units in the same column.
4. The display panel of claim 1, wherein a density of the light emitting elements of the transitional display region gradually increases in a direction of the light transmissive display region toward the main display region.
5. The display panel of claim 4, wherein the number of light emitting elements of the transitional display region increases row by row in a direction in which the light transmissive display region faces the main display region;
alternatively, in a direction in which the light-transmitting display area faces the main display area, the number of the light-emitting elements of the transition display area increases every N lines at intervals, N being an integer greater than or equal to 1.
6. The display panel of claim 5, wherein the difference in the number of light emitting elements in any two adjacent rows of the transitional display region is an integer greater than or equal to 1, and the difference in the number of light emitting elements in any two adjacent rows of the transitional display region is equal.
7. The display panel of claim 1, wherein the display panel has a plurality of external pixel driving circuits electrically connected to the light emitting elements of the light transmissive display region, the plurality of external pixel driving circuits being disposed in the transition display region and/or the main display region.
8. The display panel of claim 7, wherein at least two of the light emitting elements of the light transmissive display region are electrically connected to the same external pixel driving circuit.
9. The display panel according to claim 8, wherein the display panel has a plurality of metal signal lines and a plurality of transparent conductive signal lines, the light emitting elements electrically connected to the same external pixel driving circuit are connected through the transparent conductive signal lines, and the metal signal lines are connected to the transparent conductive signal lines or one of at least two of the light emitting elements.
10. The display panel according to claim 9, wherein the light-emitting element includes an anode, a light-emitting layer provided on the anode, and a cathode provided on the light-emitting layer, and wherein the transparent conductive signal line is connected to the anode;
wherein the transparent conductive signal line and the anode are arranged on the same layer.
CN202310701156.1A 2023-06-13 2023-06-13 Display panel Pending CN117479741A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310701156.1A CN117479741A (en) 2023-06-13 2023-06-13 Display panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310701156.1A CN117479741A (en) 2023-06-13 2023-06-13 Display panel

Publications (1)

Publication Number Publication Date
CN117479741A true CN117479741A (en) 2024-01-30

Family

ID=89629967

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310701156.1A Pending CN117479741A (en) 2023-06-13 2023-06-13 Display panel

Country Status (1)

Country Link
CN (1) CN117479741A (en)

Similar Documents

Publication Publication Date Title
US10756136B1 (en) Display panel and display device
CN112562518B (en) Display panel and display device
KR102626540B1 (en) Display substrates, display panels and display devices
US20210408152A1 (en) Display panel and display apparatus
CN110767097B (en) Display panel and display device
US10777127B2 (en) Organic electroluminescent display panel and display device
US20220157898A1 (en) Display panel and driving method thereof and display apparatus
JP7280979B2 (en) Display panel and display device
CN110112189B (en) Display panel and display device
CN112038373B (en) Display panel and display device
JP2023526706A (en) Display panel and display device
CN112072000B (en) Display panel and display device
CN110070801A (en) A kind of display panel and display device
JP2010230797A (en) Display device, and electronic apparatus
US20220223673A1 (en) Display panel and display apparatus
CN111837238A (en) Display panel, manufacturing method thereof and display device
US20230345790A1 (en) Display panel
US20220336538A1 (en) Display panel and display apparatus
WO2023029528A1 (en) Display device
WO2021227025A1 (en) Display panel and manufacturing method therefor, and display device
CN117479741A (en) Display panel
US20220310727A1 (en) Display panel, display device and manufacturing method thereof
US20230403897A1 (en) Display substrate, display panel, and display apparatus
KR20230028200A (en) Display board and display device
JP2004206923A (en) Passive matrix type organic electroluminescent panel

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination