CN112038373B - Display panel and display device - Google Patents

Display panel and display device Download PDF

Info

Publication number
CN112038373B
CN112038373B CN202010885970.XA CN202010885970A CN112038373B CN 112038373 B CN112038373 B CN 112038373B CN 202010885970 A CN202010885970 A CN 202010885970A CN 112038373 B CN112038373 B CN 112038373B
Authority
CN
China
Prior art keywords
sub
light
display area
emitting
same
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.)
Active
Application number
CN202010885970.XA
Other languages
Chinese (zh)
Other versions
CN112038373A (en
Inventor
马扬昭
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 Tianma Microelectronics Co Ltd
Original Assignee
Wuhan Tianma Microelectronics 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 Tianma Microelectronics Co Ltd filed Critical Wuhan Tianma Microelectronics Co Ltd
Priority to CN202210851003.0A priority Critical patent/CN115224091A/en
Priority to CN202010885970.XA priority patent/CN112038373B/en
Publication of CN112038373A publication Critical patent/CN112038373A/en
Application granted granted Critical
Publication of CN112038373B publication Critical patent/CN112038373B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/128—Active-matrix OLED [AMOLED] displays comprising two independent displays, e.g. for emitting information from two major sides of the display

Abstract

The embodiment of the invention discloses a display panel and a display device, which comprise a first display area and a second display area, wherein the second display area comprises a first sub-display area and a second sub-display area, and the light transmittance of the second sub-display area is greater than that of the first display area; the first pixel circuit is positioned in the first display area, and the second pixel circuit is positioned in the first sub-display area; the first light-emitting repeating unit is positioned in the first display area and comprises at least one first light-emitting unit; the second light-emitting repeating unit is positioned in the second display area and comprises at least two second light-emitting units; in the same first light-emitting repeating unit, all the first sub light-emitting elements of at least one same color are electrically connected with the same first pixel circuit; in the same second light-emitting repeating unit, all the second sub-light-emitting elements of at least one same color are electrically connected to the same second pixel circuit. Thereby promoting the luminousness of second display area, improving the split-screen phenomenon.

Description

Display panel and display device
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
As display technologies develop, the higher the screen ratio, the more attention the display panel receives. In order to improve the screen ratio, a high-light-transmission area can be arranged in the display area of the display panel to accommodate a photosensitive element, such as a front camera, an infrared sensing device, a fingerprint identification device and the like.
Because the light-transmitting area in the display area is limited, in order to improve the light transmittance and improve the optical performance of the photosensitive element under the screen, the conventional arrangement mode is to reduce the pixel density of the area where the optical device is located. When the pixel density of the area where the photosensitive element is located is reduced, the brightness of the area is reduced. Therefore, when the display is carried out, bright lines exist at the junction of the area where the photosensitive element is located and the normal display area, so that the split screen is caused, and the display effect is influenced.
Disclosure of Invention
In view of this, the present invention provides a display panel and a display device, which are beneficial to improving the light transmittance of the second display region and improving the split-screen phenomenon.
In one aspect, the present invention provides a display panel comprising:
a first display area and a second display area, the first display area at least partially surrounding the second display area; the second display area comprises a first sub-display area and a second sub-display area, the first sub-display area at least partially surrounds the second sub-display area, and the light transmittance of the second sub-display area is greater than that of the first display area;
the first pixel circuit is positioned in the first display area, and the second pixel circuit is positioned in the first sub-display area;
a first light emitting repeating unit located in the first display region and including at least one first light emitting unit including at least three first sub light emitting elements of different colors;
a second light emitting repeating unit located in the second display region and including at least two second light emitting units including at least three second sub light emitting elements of different colors;
in the same first light emitting repeating unit, all the first sub light emitting elements of at least one same color are electrically connected to the same first pixel circuit; in the same second light emitting repeating unit, all the second sub-light emitting elements of at least one same color are electrically connected to the same second pixel circuit.
In another aspect, the present invention also provides a display device, including:
the display panel according to the first aspect.
Compared with the prior art, the display panel and the display device provided by the invention have the following beneficial effects that: the aperture opening ratios of the first sub-display area and the second sub-display area are improved by increasing the number of the second light-emitting units of the second display area, so that the screen splitting phenomenon among any two of the first sub-display area, the second sub-display area and the first display area is avoided. Meanwhile, the second pixel circuit is arranged in the first sub-display area, the second light-emitting repeating unit arranged in the second display area is arranged to comprise at least two second light-emitting units, each second light-emitting unit comprises at least three second sub-light-emitting elements with different colors, and in the same second light-emitting repeating unit, all the second sub-light-emitting elements with at least one same color are electrically connected with the same second pixel circuit. In addition, one second pixel circuit is electrically connected with all the second light-emitting elements with the same color in the same second light-emitting repeating unit, so that the number of the second pixel circuits in the first sub-display area can be further reduced, the light transmittance is improved, the current density of the second sub-light-emitting elements is reduced, and the service life of the display panel is prolonged.
Drawings
FIG. 1 is a schematic diagram of a partial structure of a display panel in the prior art;
FIG. 2 is a partial schematic diagram of another prior art display panel;
fig. 3 is a schematic plan view of a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a configuration of the region Q1 of FIG. 3;
FIG. 5 is another schematic diagram of the structure of region Q1 of FIG. 3;
fig. 6 is a schematic plan view of another display panel according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a configuration of region Q2 of FIG. 6;
FIG. 8 is a schematic view of an alternative configuration of region Q2 of FIG. 6;
FIG. 9 is a partial schematic view of an embodiment of the present invention;
FIG. 10 is a schematic view of a cross-sectional view along AA' of FIG. 9;
FIG. 11 is a schematic view of a configuration of region Q3 of FIG. 10;
FIG. 12 is a schematic view of another partial structure provided by an embodiment of the present invention;
FIG. 13 is a schematic diagram of a partial structure provided by an embodiment of the present invention;
FIG. 14 is a schematic cross-sectional view taken along the direction BB' in FIG. 13;
FIG. 15 is a schematic diagram of a partial structure provided by an embodiment of the present invention;
FIG. 16 is a schematic cross-sectional view taken along the direction CC' in FIG. 15;
FIG. 17 is a schematic diagram of a partial structure provided by an embodiment of the present invention;
FIG. 18 is a schematic cross-sectional view taken along direction DD' of FIG. 17;
FIG. 19 is a schematic view of yet another configuration of the region Q2 of FIG. 6;
FIG. 20 is a schematic view of yet another configuration of the area Q2 of FIG. 6;
FIG. 21 is a schematic view of yet another configuration of the area Q2 of FIG. 6;
FIG. 22 is a schematic view of yet another configuration of the area Q2 of FIG. 6;
FIG. 23 is a schematic diagram of a partial structure provided by an embodiment of the present invention;
FIG. 24 is a schematic view of a cross-sectional structure taken along direction EE' of FIG. 23;
FIG. 25 is a schematic diagram of a partial structure provided by an embodiment of the present invention;
fig. 26 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
It should be understood that the preferred embodiments described below are only for illustrating and explaining the present invention and are not to be used for limiting the present invention. And the embodiments and features of the embodiments in the present application may be combined with each other without conflict. Also, the shapes and sizes of the various elements in the drawings are not to scale and are merely intended to illustrate the present invention.
In order to better understand the technical solutions of the present invention, the following detailed descriptions of the technical solutions of the present invention are provided with the accompanying drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present invention are detailed descriptions of the technical solutions of the present invention, and are not limitations of the technical solutions of the present invention, and the technical features in the embodiments and examples of the present invention may be combined with each other without conflict.
Referring to fig. 1 and 2, fig. 1 and 2 are schematic partial structural diagrams of a display panel in the prior art. The display panel includes a first display region a1 ' and a second display region a2 ', the first display region a1 ' at least partially surrounds the second display region a2 ', the second display region a2 ' includes a first sub-display region a21 ' and a second sub-display region a22 ', the first sub-display region a21 ' at least partially surrounds the second sub-display region a22 ', and the light transmittance of the second sub-display region a22 ' is greater than that of the first display region a1 '. In the direction perpendicular to the light-emitting surface of the display panel, the second sub-display area a2 'corresponds to a photosensitive element (e.g., a front camera, an infrared sensor, a fingerprint sensor), wherein the light required by the photosensitive element during operation mainly originates from the light transmitted through the second sub-display area a 22'. In order to improve the light transmittance of the second sub-display region a22 'compared to the first display region a 1' (normal display region), the pixel density of the second sub-display region a22 'is reduced (typically, one fourth of the first display region a 1'). Meanwhile, in order to implement a transition between the first display region a1 ' and the second sub display region a22 ', the pixel density of the first sub display region a21 ' is also reduced. Therefore, a screen split phenomenon may occur between the first display area a1 ', the first sub-display area a21 ' and the second sub-display area a22 ', which may affect the user experience.
In view of this, the present invention provides a display panel and a display device, which are beneficial to improving the light transmittance of the first display region and improving the split-screen phenomenon.
The following detailed description is to be read with reference to the drawings and the detailed description.
An embodiment of the invention provides a display panel, fig. 3 is a schematic plan view of the display panel provided in the embodiment of the invention, and fig. 4 is a schematic structural view of a region Q1 in fig. 3. As shown in fig. 3 and 4, the display panel includes a first display region a1, a second display region a2, and the first display region a1 at least partially surrounds the second display region a 2. It is understood that the display panel further includes a non-display area NA surrounding the display area. The second display region a2 includes a first sub display region a21 and a second sub display region a22, the first sub display region a21 at least partially surrounds the second sub display region a22, and the light transmittance of the second sub display region a22 is greater than that of the first display region a 1. A first pixel circuit C1 and a second pixel circuit C2, the first pixel circuit C1 being located in the first display region a1, the second pixel circuit C2 being located in the first sub-display region a 21. The first light emitting repeating unit L1, the first light emitting repeating unit L1 is located in the first display region a1 and includes at least one first light emitting unit L11, and the first light emitting unit L11 includes at least three first sub light emitting elements P1 of different colors. The second light emitting repeating unit L2, the second light emitting repeating unit L2 is located in the second display region a2 and includes at least two second light emitting units L0, and the second light emitting unit L0 includes at least three second sub light emitting elements P2 of different colors. In the same first light emitting repeating unit L1, all the first sub light emitting elements P1 of at least one same color are electrically connected to the same first pixel circuit C1; in the same second light emitting repeating unit L2, all the second sub light emitting elements P2 of at least one of the same colors are electrically connected to the same second pixel circuit C2.
It is understood that, in the present embodiment, the first sub Light Emitting element P1 and the second sub Light Emitting element P2 may be Organic Light Emitting Diode (OLED) Light Emitting elements, that is, the display panel is an OLED display panel. It is understood that the display panel according to the embodiment of the invention may also be other self-luminous display panels capable of being driven in an Active Matrix (AM) manner, similar to the OLED display panel.
In the present invention, the term "pixel circuit" refers to a minimum repeating unit of a circuit structure for driving a corresponding light-emitting element to emit light, and includes, for example, at least two thin film transistors and at least one capacitor (2T1C circuit, 7T1C circuit).
In the present embodiment, the second light emitting repeating unit L2 is disposed in the second sub-display region a22, and no pixel circuit is disposed in the second sub-display region a22 (i.e., the pixel circuits corresponding to the second sub-light emitting elements P2 of the second sub-display region a22 are all disposed in the first sub-display region a21), so that the second sub-display region a22 has a higher light transmittance. The second sub-display region a22 may be either display or light transmissive so as to be able to be an integrated region of an optical element provided on the non-display surface side of the second sub-display region a 22. The orthographic projection of the effective photosensitive surface of the optical element on the display panel is covered by the second sub-display area a22, and in some embodiments, the shape of the second sub-display area a22 matches the shape of the effective photosensitive surface of the optical element.
It is understood that the first light emitting unit L11 includes at least three first sub light emitting elements P1 of different colors, the second light emitting unit L0 includes at least three second sub light emitting elements P2 of different colors, and the first and second sub light emitting elements P1 and P2 may emit light of any one color of red, green, and blue, but are not limited thereto in the embodiment of the present invention. For example, the light emitting elements (the first sub light emitting element P1 and the second sub light emitting element P2) may emit light of any one color of cyan, magenta, yellow, white, and the like.
In addition, in the present embodiment, the description will be made only by taking as an example that the outline of the second sub light emitting element P2 in the second sub display area a22 is set to be circular (specifically, the anode of the second sub light emitting element P2 may be set to be circular). By the design mode, the diffraction phenomenon of the second sub-display area A22 can be improved, and the shooting quality of the camera is further improved. In practical products, the outline of the second sub light emitting element P2 may also be provided in other shapes, such as an ellipse, a regular hexagon, a rounded rectangle, etc., which the present invention is not exhaustive. In the embodiment of the present invention, only the outline of the second sub light emitting element P2 in the first sub display area a21 is the same as the outline shape of the second sub light emitting element P2 in the second sub display area a 22. In an actual product, the shapes of the light emitting elements in the two regions may be the same or different, and the description of the present invention is omitted.
It may be understood that, in order to achieve a uniform transition in luminance between the first sub-display region a21 and the second sub-display region a22, the profile of the second sub-light emitting element P2 within the first sub-display region a21 may also be the same as the profile of the second sub-light emitting element P2 of the second sub-display region a 22. It is also possible to design that the area of the second sub light emitting element P2 within the first sub display region a21 is smaller than the area of the second sub light emitting element P2 of the second sub display region a 22. In order to achieve uniform transition of brightness between the first display area a1 and the first sub-display area a21 (or the second sub-display area a22), the size of the first pixel circuit C1 and the area of the first sub-light emitting element P1 of the first display area a1 close to the first sub-display area a21 (or the second sub-display area a22) may be appropriately adjusted, for example, in a gradual change design manner, which is not described herein again.
It should be noted that the first sub light-emitting element P1 and the second sub light-emitting element P2 in fig. 4 are filled with different patterns, which is mainly to show that different light-emitting elements emit light with different colors, so as to explain the main points of the invention.
In the embodiment of the present invention, the first display area a1 completely surrounds the second display area a2, that is, the first display area a1 completely surrounds the first sub-display area a21, the first sub-display area a21 completely surrounds the second sub-display area a22, the shapes of the first display area a1, the first sub-display area a21, and the second sub-display area a22 may be regular or irregular, and the number of the second display areas a2 may be one or more, which is not limited in the present invention.
It should be noted that, in the embodiment of the present invention, only the first light-emitting repeating unit L1 includes one first light-emitting unit L11, and the first light-emitting unit L11 includes three first sub light-emitting elements P1 with different colors, so that in the same first light-emitting repeating unit L1, one first sub light-emitting element P1 with one color is shared and electrically connected to one first pixel circuit C1; that is, one first pixel circuit C1 is electrically connected to one first sub light emitting element P1 of one color. In the embodiment of the invention, the second light emitting repeating unit L2 includes two second light emitting units L0, and the second light emitting unit L0 includes three second sub-light emitting elements P2 with different colors. Compared with the prior art (fig. 1 and 2), in the embodiment (as shown in fig. 4) provided by the present invention, the number of the second sub light emitting elements P2 in the first sub display area a21 and the second sub display area a22 is increased, which is equivalent to increasing the number of the light emitting points in the first sub display area a21 and the second sub display area a22 (if the number of the light emitting points in the unit area in the second display area a2 'in fig. 1 and 2 is a, the number of the light emitting points in the unit area in the second display area a 2' in fig. 4 is 2a), so as to increase the aperture ratio of the first sub display area a21 and the second sub display area a22, and further increase the brightness, and avoid the screen split phenomenon between any two of the first sub display area a21, the second sub display area a22, and the first display area a 1. Meanwhile, by providing the second pixel circuit C2 electrically connected to the second sub light emitting element P2 in the second sub display region a22 in the first sub display region a21, it is possible to increase the aperture ratio of the second sub display region a22 and to prevent the transmittance from being decreased due to the provision of the pixel circuit in the region, thereby preventing the influence on the transmittance of the second sub display region a22 as much as possible. In addition, one second pixel circuit C2 is electrically connected to all the second light emitting elements P2 of the same color in the same second light emitting repetitive unit L2, so that the number of the second pixel circuits C2 in the first sub-display area a21 can be further reduced, and the light transmittance can be improved; meanwhile, the plurality of second light emitting elements P2 with the same color are electrically connected to the same second pixel circuit C2, so that the light emitting area of the second light emitting element P2 electrically connected to one second pixel circuit C2 can be increased, the current density of the second light emitting element P2 can be reduced when the same brightness is displayed, and the service life of the display panel can be prolonged.
In order to further improve the screen split phenomenon between the first display area a1 and the first sub-display area a21 (or the second sub-display area a22), in the same first light-emitting repeating unit L1, all the first sub-light-emitting elements P1 of at least one same color are electrically connected to the same first pixel circuit C1, so that the brightness difference between the first display area a1 and the first sub-display area a21 (or the second sub-display area a22) can be weakened, and the service life of the display panel can be prolonged.
In some alternative embodiments, referring to fig. 5, fig. 5 is another schematic view of the region Q1 of fig. 3. The second pixel circuit C2 includes a first sub-pixel circuit C21 and a second sub-pixel circuit C22, and the first sub-pixel circuit C21 and the second sub-pixel circuit C22 are both located in the first sub-display area a 21. The second light-emitting repeating unit L2 includes a first sub-light-emitting repeating unit L21 and a second sub-light-emitting repeating unit L22, the first sub-light-emitting repeating unit L21 is located in the first sub-display region a21, the second sub-light-emitting repeating unit L22 is located in the second sub-display region a22, and each of the first sub-light-emitting repeating unit L21 and the second sub-light-emitting repeating unit L22 includes at least two second light-emitting units L0. In the same first sub-emission repeating unit L21, all the second sub-emission elements P2 of at least one color are electrically connected to the same first sub-pixel circuit C21; in the same second sub light emitting repeating unit L22, all the second sub light emitting elements P2 of at least one of the same colors are electrically connected to the same second sub pixel circuit C22.
It should be noted that, for convenience of description, the first pixel circuit C1, the first sub-pixel circuit C21, and the second sub-pixel circuit C22 are filled with different patterns in this embodiment, and the specific features thereof are not limited.
In the embodiment of the present invention, the second light-emitting unit L0 including the second sub light-emitting elements P2 of three different colors is taken as an example, and specifically, the first color (grid pattern filling), the second color (diagonal pattern filling), and the third color (dot pattern filling) are respectively described.
In the embodiment of the present invention, the first sub-emission repeating unit L21 includes two second emission units L0, and in the same first sub-emission repeating unit L21, all the second sub-emission elements P2 (two in total) of the first color are electrically connected to the same first sub-pixel circuit C21, and all the second sub-emission elements P2 (two in total) of the third color are electrically connected to the same first sub-pixel circuit C21; the two second sub-light emitting elements P2 of the second color are electrically connected to the two first sub-pixel circuits C21 in a one-to-one correspondence. The second sub-emission repeating unit L22 includes two second emission units L0, and in the same second sub-emission repeating unit L22, all the second sub-emission elements P2 (two in total) of the first color are electrically connected to the same second sub-pixel circuit C22, and all the second sub-emission elements P2 (two in total) of the third color are electrically connected to the same second sub-pixel circuit C22; the two second sub-light emitting elements P2 of the second color are electrically connected to the two second sub-pixel circuits C22, respectively, in a one-to-one correspondence.
In actual display, one first sub-pixel circuit C21 (or one second sub-pixel circuit C22) may control two second sub-light emitting elements P2 of the first color to be turned on or off at the same time, or control two second sub-light emitting elements P2 of the third color to be turned on or off at the same time, or control one second sub-light emitting element P2 of the second color to be turned on or off. For the first Sub-display area a21 and the second Sub-display area a22, Sub Pixel Rendering (SPR)/Sub Pixel borrowing may be used for driving. The SPR scheme may also be used for a partial region of the first display region a1 adjacent to the second display region a 2.
In the embodiment of the present invention, in the same second sub-light emitting repeating unit L22, all the second sub-light emitting elements P2 of at least one color are electrically connected to the same second sub-pixel circuit C22, and the second sub-pixel circuit C22 is located in the first sub-display area a21, so that the aperture ratio of the second sub-display area a22 can be increased, the light emitting area of the second sub-light emitting element P2 can be increased, and the display brightness of the second sub-display area a22 can be increased; meanwhile, the arrangement mode that one second sub-pixel circuit C22 is electrically connected to a plurality of second sub-light-emitting elements P2 can increase the number of light-emitting points, and simultaneously, the second sub-pixel circuits C22 are prevented from being increased by the same amount, so that the first sub-display area a21 is prevented from being provided with excessive second sub-pixel circuits C22, and the influence on the light transmittance of the display panel is reduced. In addition, the plurality of second light emitting elements P2 with the same color are electrically connected to the same second sub-pixel circuit C22, so that the current density of the second light emitting elements P2 can be reduced and the lifetime of the display panel can be prolonged when the same brightness is displayed.
In the embodiment of the present invention, in the same first sub-light emitting repeating unit L21, all the second sub-light emitting elements P2 of at least one color are electrically connected to the same first sub-pixel circuit C21, so that the aperture ratio of the first sub-display area a21 can be increased, the light emitting area of the second sub-light emitting elements P2 can be increased, and the display brightness of the first sub-display area a21 can be increased; meanwhile, the arrangement mode that one first sub-pixel circuit C21 is electrically connected to a plurality of second sub-light-emitting elements P2 can increase light-emitting points, avoid the increase of the same number of first sub-pixel circuits C21, avoid the arrangement of too many first sub-pixel circuits C21 in the first sub-display area a21, reserve more space for the arrangement of the second sub-pixel circuits C22, and reduce the influence on the light transmittance of the display panel. In addition, the plurality of second light emitting elements P2 with the same color are electrically connected to the same first sub-pixel circuit C21, so that the current density of the second light emitting elements P2 can be reduced and the lifetime of the display panel can be prolonged when the same brightness is displayed.
In some alternative embodiments, referring to fig. 6 and fig. 7, fig. 6 is a schematic plan view of another display panel provided in the embodiments of the present invention; fig. 7 is a schematic diagram of a structure of the region Q2 in fig. 6. The first sub-display area a21 and the second sub-display area a22 are arranged in the first direction X; the first sub-light emitting repeating unit L21 includes at least two second light emitting units L0 arranged in the first direction X or the second direction Y; the second sub-light emitting repeating unit L22 includes at least two second light emitting units L0 arranged in the first direction X or the second direction Y, the first direction X and the second direction Y crossing.
The display panel includes a plurality of data lines, scan lines, reference voltage signal lines, and the like, and the first direction X may be an extending direction of the scan lines and the like, and the second direction Y may be an extending direction of the data lines, or vice versa.
Specifically, as shown in fig. 6, the first sub-display area a21 partially surrounds the second sub-display area a22, that is, the display panel includes two first sub-display areas a21 and one second sub-display area, and the two first sub-display areas a21 are respectively located at both sides of the second sub-display area a22 along the first direction X. The first display region a1 has a boundary with both the first sub-display region a21 and the second sub-display region a 22. As shown in fig. 7, the first sub light emitting repeating unit L21 includes three second light emitting units L0 arranged in the second direction Y, and the second sub light emitting repeating unit L22 includes two second light emitting units L0 arranged in the second direction Y. As shown in fig. 8, the first sub light emitting repeating unit L21 includes three second light emitting units L0 arranged in the first direction X, and the second sub light emitting repeating unit L22 includes four second light emitting units L0 arranged in the first direction X.
It is understood that the numbers of the second light emitting units L0 included in the first sub light emitting repeating unit L21 and the second sub light emitting repeating unit L22 may be the same or different, and the specific numbers thereof may be designed by comprehensively considering various factors such as the light transmittance and the aperture ratio of the display panel, and the invention is not exhaustive.
In the embodiment of the present invention, the first sub-light emitting repeating unit L21 (or the second sub-light emitting repeating unit L22) is configured to include at least two second light emitting units L0 arranged along the first direction X or the second direction Y, so that the space of the display panel can be reasonably utilized, the number of the light emitting elements P2 in the first sub-display area a21 and the second sub-display area a22 can be increased, the aperture ratio of the second sub-display area a2 can be increased, the split screen phenomenon can be improved, the current density of the second light emitting element P2 can be reduced, and the service life of the display panel can be prolonged.
In some alternative embodiments, referring to fig. 4, 5, 7 and 8, the second light emitting unit L0 includes three different colors of second sub light emitting elements P2, which are a first color sub light emitting element P21, a second color sub light emitting element P22 and a third color sub light emitting element P23, respectively. In the same first sub-emission repeating unit L21, all the first color sub-emission elements P21 are electrically connected to the same first sub-pixel circuit C21; all the second-color sub light emitting elements P22 are electrically connected to the same first sub-pixel circuit C21, or the second-color sub light emitting elements P22 are electrically connected to the first sub-pixel circuits C21 in a one-to-one correspondence; all the third-color sub light emitting elements P23 are electrically connected to the same first sub-pixel circuit C21, or the third-color sub light emitting elements P23 are electrically connected to the first sub-pixel circuits C21 in a one-to-one correspondence. In the same second sub light emitting repeating unit L22, all the first color sub light emitting elements P21 are electrically connected to the same second sub pixel circuit C22; all the second-color sub light emitting elements P22 are electrically connected to the same second sub-pixel circuit C22, or the second-color sub light emitting elements P22 are electrically connected to the second sub-pixel circuits C22 in a one-to-one correspondence; all the third-color sub light emitting elements P23 are electrically connected to the same second sub pixel circuit C22, or the third-color sub light emitting elements P23 are electrically connected to the second sub pixel circuits C22 in a one-to-one correspondence.
Specifically, as shown in fig. 4, 7 and 8, in the same first sub light emission repeating unit L21, all the first-color sub light emitting elements P21 are electrically connected to the same first sub-pixel circuit C21, all the second-color sub light emitting elements P22 are electrically connected to the same first sub-pixel circuit C21, and all the third-color sub light emitting elements P23 are electrically connected to the same first sub-pixel circuit C21. In the same second sub-emission repeating unit L22, all the first-color sub-emission elements P21 are electrically connected to the same second sub-pixel circuit C22, all the second-color sub-emission elements P22 are electrically connected to the same second sub-pixel circuit C22, and all the third-color sub-emission elements P23 are electrically connected to the same second sub-pixel circuit C22. This design can minimize the number of the first sub-pixel circuits C21 and the second sub-pixel circuits C22 required for the same first sub-emitting repeating unit L21 and the same second sub-emitting repeating unit L22, so that the number of the second sub-emitting elements P2 in the second display area a2 can be increased and the luminance of the second display area a2 can be improved without increasing the total number of the pixel circuits (the sum of the number of the first sub-pixel circuits C21 and the number of the second sub-pixel circuits C22) in the first sub-display area a21 compared with the prior art. Moreover, when one first sub-pixel circuit C21 or one second sub-pixel circuit C22 is correspondingly connected with m1(m1 is more than or equal to 4) second sub-light-emitting elements P2, compared with the prior art, the total number of the pixel circuits in the first sub-display area A21 can be reduced, so that the first sub-display area A21 has higher transmittance.
Specifically, as shown in fig. 5, in the same first sub-light emitting repeating unit L21, all the first color sub-light emitting elements P21 are electrically connected to the same first sub-pixel circuit C21, the second color sub-light emitting elements P22 are electrically connected to the first sub-pixel circuit C21 in a one-to-one correspondence, and all the third color sub-light emitting elements P23 are electrically connected to the same first sub-pixel circuit C21. In the same second sub-emission repeating unit L22, all the first-color sub-emission elements P21 are electrically connected to the same second sub-pixel circuit C22, the second-color sub-emission elements P22 are electrically connected to the second sub-pixel circuits C22 in a one-to-one correspondence, and all the third-color sub-emission elements P23 are electrically connected to the same second sub-pixel circuit C22. In this design, one first sub-pixel circuit C21 or one second sub-pixel circuit C22 is electrically connected to one second color sub-light emitting element P22, so that the number of the second sub-light emitting elements P2 in the second display area a2 can be increased, the brightness of the second display area a2 can be improved, and meanwhile, when a second color pure color image is displayed, the resolution (Pixels Per Inch, PPI) of the second color sub-light emitting element P22 can be improved, and the display effect can be improved.
It is understood that in some alternative embodiments, one first sub-pixel circuit C21 or one second sub-pixel circuit C22 may be electrically connected to one third color sub-light emitting element P23, so as to improve the resolution of the display panel corresponding to the third color sub-light emitting element P23 and improve the display effect when displaying the third color pure color image.
Taking the second sub-emission repeating unit L22 as an example, the correspondence relationship between the light-emitting element and the pixel circuit is further explained. When the second light-emitting repeating unit L22 includes n1(n1 ≧ 3) second light-emitting units L0 and L0 include n2(n2 ≧ 3) second light-emitting elements P2 of different colors, in the same second light-emitting repeating unit L22, the second light-emitting elements P2 (taking the second color sub-light-emitting elements P22 as an example) of the same color include n1 × n2, the n1 × n2 second color sub-light-emitting elements P22 may be electrically connected to the n1 × n2 second sub-pixel circuits C22 in a one-to-one correspondence, or every n3(n3 ≧ 2) second color sub-light-emitting elements P22 are electrically connected to the same second sub-pixel circuit C22, and the remaining second color sub-light-emitting elements P22 are electrically connected to the second sub-pixel circuits C22 in a one-to one correspondence, and n3 < n1 × 2. In actual design, the number of the second color sub-light emitting elements P22 controlled by one second sub-pixel circuit C22 may be designed by comprehensively considering various factors such as light transmittance and aperture ratio of the display panel, and thus, this embodiment is not described again.
In some alternative embodiments, the first color sub light emitting element P21 is a red sub light emitting element, the second color sub light emitting element P22 is a green sub light emitting element, and the third color sub light emitting element P23 is a blue sub light emitting element.
It is understood that, in practical applications, for the same second light-emitting unit L0 or first light-emitting unit L11, the area of the blue sub-light-emitting element may be designed to be the largest, the light-emitting area of the red sub-light-emitting element is the second largest, and the light-emitting area of the green sub-light-emitting element is the smallest; or the light-emitting area of the green sub-light-emitting element is the next to the light-emitting area of the red sub-light-emitting element.
For the light emitting units of different regions, the light emitting area of the first light emitting unit L11 in the first display region A1 (the sum of the light emitting areas of all the first sub light emitting elements P1 included) can be represented as S1, the light emitting area of the second light emitting unit L0 in the first sub display region A21 (the sum of the light emitting areas of all the second sub light emitting elements P2 included) can be represented as S2, and the light emitting area of the second light emitting unit L0 in the second sub display region A22 can be represented as S3, where S1S 2 ≧ S3. Further, S1, S2, and S3 may be designed as gradual change values, for example, in a direction pointing to the first sub-display area a21 and simultaneously pointing to the second sub-display area a22 along the first display area a1, S1, S2, and S3 are all gradually increased or gradually decreased, so that a uniform luminance transition at a junction of the first sub-display area a21, the second sub-display area a22, and the first display area a1 can be achieved, a screen splitting phenomenon at a junction of different areas is further improved, and a display effect is improved.
In some alternative embodiments, referring to fig. 9-11, fig. 9 is a partial structure diagram provided by the embodiments of the present invention, fig. 10 is a cross-sectional structure diagram along AA 'direction and BB' direction in fig. 9, and fig. 11 is a structure diagram of a region Q3 in fig. 10. The second sub-light emitting element P2 includes a first electrode 131, a light emitting structure 132 and a second electrode 133, the first electrodes 131 of the adjacent second sub-light emitting elements P2 electrically connected to the same second sub-pixel circuit C22 are electrically connected through a first connection line W1, and the first connection line W1 is a transparent trace.
The present embodiment takes the second sub light emitting element P2 of the second sub display area a22 as an example. Since the second sub-display area a22 of the second display area a2 corresponds to the photosensitive element (e.g., front camera, infrared sensor, fingerprint sensor), the light required by the photosensitive element during operation is mainly from the light transmitted through the second sub-display area a 22. By electrically connecting the first electrodes 131 of the adjacent second sub light emitting elements P2 electrically connected to the same second sub pixel circuit C22 within the second sub display area a22 through the transparent first connecting line W1, the light transmittance of the second sub display area a22 can be further improved. In addition, the transparent first connecting line W1 can be designed into a curve (an arc line or a wavy line) and the like, so that a straight-edge boundary (or a straight-edge gap) of the second sub-display area a22 is avoided, the diffraction degree of the second sub-display area a22 can be greatly reduced, the influence of the diffraction phenomenon on the picture shot by the camera is weakened, the definition of the shot picture is improved, and the shooting picture quality is improved.
In some alternative embodiments, referring to fig. 10-11, the display panel includes a substrate base plate 10, a thin film transistor array layer 11 on a side of the substrate base plate 10, and an organic light emitting device layer 13 on a side of the thin film transistor array layer 11 away from the substrate base plate 10. The substrate 10 may be a rigid substrate (e.g., a glass substrate) or a flexible substrate (e.g., a substrate formed of polyimide and an organic film layer or an inorganic film layer). The thin film transistor array layer 11 includes an active layer 111, a gate insulating layer 112, a first metal layer 113, a first interlayer insulating layer 114, and a second metal layer 115; the organic light emitting device layer 13 includes an anode layer 131, a light emitting layer 132, and a cathode layer 133; the display panel further includes a planarization layer 12 between the second metal layer 115 and the anode layer 131, and a pixel definition layer pdl (pixel definition layer) on a side of the anode layer 131 away from the substrate 10.
It is understood that the display panel may further include a capacitance metal layer (not shown in fig. 10) between the first metal layer 113 and the second metal layer 115, and an insulating layer (not shown in fig. 10) for insulating between different metal layers.
It is understood that the thin film transistor array layer 11 includes a plurality of thin film transistors T including an active portion Tp located at the active layer 111, a gate electrode Tg located at the first metal layer 113, and source and drain electrodes Ts and Td located at the second metal layer 115. In the present invention, only the gate Tg on the side of the active portion away from the substrate 10 (i.e., the top gate structure) is taken as an example, and in an actual product, the gate Tg may be designed as a bottom gate structure.
It should be noted that the film structure shown in fig. 10 only shows one driving transistor T0 in the second sub-pixel circuit C22 (which may be a 2T1C circuit, a 7T1C circuit). During the display process, the driving transistor T0 in the second sub-pixel circuit C22 is turned on, and the driving signal is transmitted to the second sub-light emitting element P2 to drive the second sub-light emitting element P2 to emit light.
In some alternative embodiments, the first connection line W1 may be made of a transparent material such as Indium Tin Oxide (ITO) or Indium Zinc Oxide (IZO). Specifically, as shown in fig. 9 to 11, the first electrode 131 is an anode of the second sub-light emitting element P2 and is generally composed of a first conductive layer 1311, a second conductive layer 1312, and a third conductive layer 1313, wherein the first conductive layer 1311 and the third conductive layer 1313 may be ITO, and the second conductive layer 1312 may be Ag. In the embodiment of the present invention, by multiplexing the first conductive layer 1311(ITO) of the first electrode 131 (anode) as the first connection line W1, the number of film layers and the number of corresponding masks can be reduced, the difficulty of the manufacturing process of the display panel is reduced, the manufacturing efficiency of the display panel is improved, and the display panel is thinned.
In some alternative embodiments, with continued reference to fig. 9-10, a second sub-light emitting element P2, which is electrically connected to the same second sub-pixel circuit C22, is electrically connected to the second sub-pixel circuit C22 by a first auxiliary wire F1. The first auxiliary conductive line F1 may be made of metal, and is used as the second metal layer 115. The second metal layer 115 (e.g., three layers of mo-al-mo, ti-al-ti, etc., or a single layer or multiple layers of other metals) has better conductivity, and can improve the transmission efficiency of signals and display effect.
In some alternative embodiments, referring to fig. 12, fig. 12 is another partial structural schematic diagram provided in the embodiments of the present invention. The first auxiliary wire F1 includes a first sub-auxiliary wire F11 and a second sub-auxiliary wire F12, the first sub-auxiliary wire F11 is located in the first sub-display area a21, and the second sub-auxiliary wire F12 is located in the second sub-display area a 22. The first sub auxiliary conductive line F11 can be made of metal, and the second sub auxiliary conductive line F12 can be a transparent trace (such as ITO or IZO). The first sub-auxiliary conducting wire F11 located in the first sub-display area A21 is set to be a metal conducting wire, the second sub-auxiliary conducting wire F12 located in the second sub-display area A22 is set to be a transparent wiring, light transmittance and signal transmission performance of the second sub-display area A22 can be considered, and normal work and normal display of the photosensitive element in the area are achieved.
In some alternative embodiments, referring to fig. 13-14, fig. 13 is a schematic view of a further partial structure provided by embodiments of the present invention; fig. 14 is a schematic view of a cross-sectional structure along the direction BB' in fig. 13. The first electrodes 131 of the adjacent second sub-light emitting elements P2 electrically connected with the same first sub-pixel C11 are electrically connected through a second connecting wire W2, and the second connecting wire W2 is a metal trace.
It is to be understood that like reference numerals designate like or similar structures and that the present invention is not described in detail.
Since the first sub-display area a21 has a lower transmittance requirement than the second sub-display area a22, the second connection line W2 made of metal material may be used to connect the first electrodes 131 of the adjacent second sub-light emitting elements P2 in the first sub-display area a21, thereby improving the signal transmission performance of the area.
In some alternative embodiments, referring to fig. 15 and 16, fig. 15 is a schematic view of a partial structure provided by the embodiment of the present invention, and fig. 16 is a schematic view of a cross-sectional structure along direction CC' in fig. 15. The second sub-pixel circuit C22 at least partially overlaps the second sub-light emitting element P2 in a direction perpendicular to the light-emitting surface of the display panel.
In the embodiment of the present invention, by disposing the second sub-pixel circuit C22 located in the first sub-display area a21 and the second sub-light emitting element P2 (the pixel circuit electrically connected to the second sub-light emitting element P2 is the first sub-pixel circuit C21) to be overlapped, the film layers and the space of the display panel can be fully utilized, so that more second sub-light emitting elements P2 can be disposed in the first sub-display area a21 and the second sub-display area a22, the light emitting area (aperture ratio) or PPI in the area is increased, the uniform luminance transition at the interface of the first sub-display area a21, the second sub-display area a22 and the first display area a1 is realized, the screen separation phenomenon at the interface of different areas is further improved, and the display effect is improved.
In some alternative embodiments, referring to fig. 17 and 18, fig. 17 is a schematic view of a partial structure provided by the embodiment of the present invention, and fig. 18 is a schematic view of a cross-sectional structure along direction DD' in fig. 17.
The display panel further includes a capacitor metal layer 17 and a second interlayer insulating layer 117 disposed between the capacitor metal layer 17 and the first metal layer 113. The capacitor metal layer 17 is used to form a capacitor in the pixel circuit with the first metal layer 113, thereby achieving the function of storing charges or stabilizing the node voltage. The display panel further comprises a third metal layer 18 which may be used to set the supply voltage signal lines (PVDD). The display panel further includes a first connection layer 19 and a second connection layer 20, and an insulating layer 118 (which may be an organic material) and an insulating layer 119 (which may be an organic material) for electrically insulating the interlayer films.
It is understood that the first connection line W1 may still be multiplexed with the first conductive layer (ITO material) of the first electrode 131 of the second sub light emitting element P2. The first connection layer 19 and the second connection layer 20 may be made of metal, or may be made of transparent material such as ITO, or the portion located in the second sub-display area a22 may be made of transparent material such as ITO, and the portion located in the first sub-display area a21 may be made of metal. In an actual product, the materials of the first connection layer 19 and the second connection layer 20 may be selected reasonably after considering various factors such as light transmittance, process difficulty, mask number, PPI of different display regions, and the like.
In the embodiment of the invention, the first auxiliary wires F1 are respectively disposed on the first connection layer 19 and the second connection layer 20, and different first auxiliary wires F1 are at least partially overlapped in a direction perpendicular to the plane of the substrate base plate 10 (or the light emitting surface of the display panel), so that more second sub-light emitting elements P2 can be disposed, the PPI in the region can be increased, the light transmittance of the second sub-display region a22 is not greatly affected, the screen splitting phenomenon at the boundary of different regions can be further improved, and the display effect can be improved.
It can be understood that the display panel can further include more connecting layers for routing the first auxiliary wires F1 according to actual requirements, so as to improve the light transmittance and PPI, and the description of the invention is omitted.
In some alternative embodiments, referring to fig. 19, fig. 19 is a schematic view of yet another configuration of region Q2 of fig. 6. The second pixel circuit C2 further includes a third sub-pixel circuit C23, the third sub-pixel circuit C23 is located in the first sub-display region a 21; the second light emitting repeating unit L2 further includes a third sub light emitting repeating unit L23, the third sub light emitting repeating unit L23 includes a first unit L231 and a second unit L232, the first unit L231 is located in the first sub display region a21, the second unit L232 is located in the second sub display region a22, and the first unit L231 includes at least one second light emitting unit L0, and the second unit L232 includes at least one second light emitting unit L0. In the same third sub-emission repeating unit L23, all the second sub-emission elements P2 of at least one of the same colors are electrically connected to the same third sub-pixel circuit C23.
It is understood that, in the present embodiment, the first unit L231 includes 4 second light emitting units L0, the second unit L232 includes 4 second light emitting units L0, and the second light emitting unit L0 includes three second sub light emitting elements P2 of different colors.
In the embodiment of the present invention, in the plurality of second sub light emitting elements P2 belonging to the same third sub light emitting repetitive unit L23, all the second sub light emitting elements P2 of at least one same color are electrically connected to the same third sub pixel circuit C23; it is possible to prevent an excessive number of pixel circuits from being disposed in the second sub-display area a22 while increasing the aperture ratio of the second sub-display area a 22. In addition, the plurality of second light emitting elements P2 with the same color are electrically connected to the same third sub-pixel circuit C23, so that the current density of the second light emitting elements P2 can be reduced and the lifetime of the display panel can be prolonged when the same luminance is displayed.
In the embodiment of the present invention, the first unit L231 and the second unit L232 belonging to the same third sub-lighting repeating unit L23 are respectively located in the first sub-display area a21 and the second sub-display area a22, and that is, the third sub-lighting repeating unit L23 crosses the boundary line (virtual line, which does not actually exist in the panel, but can be determined according to the actual design condition of the display panel) between the first sub-display area a21 and the second sub-display area a 22; when displaying, the plurality of second light emitting elements P2 of the same color electrically connected to the same third sub-pixel circuit C23 can be turned on or off at the same time, so that the brightness difference at the junction of the first sub-display area a21 and the second sub-display area a22 can be weakened, the screen splitting phenomenon is further improved, and the display effect is improved.
In some alternative embodiments, the first unit L231 and the second unit L232 of the same third sub-emission repeating unit L23 are arranged along the first direction X; the first unit L231 includes at least two of the second light emitting cells L0 arranged in the second direction Y, and the second unit L232 includes at least two of the second light emitting cells L0 arranged in the second direction Y, the first direction X crossing the second direction Y.
It is understood that, in the present embodiment, the first unit L231 includes 2 second light emitting units L0 arranged along the second direction Y, the second unit L232 includes 2 second light emitting units L0 arranged along the second direction Y, and the second light emitting unit L0 includes three second sub light emitting elements P2 of different colors.
It is understood that the number of the second light emitting units L0 included in the first unit L231 and the second unit L232 may be the same or different, and the specific number thereof may be designed by comprehensively considering various factors such as the light transmittance and the aperture ratio of the display panel, and the present invention is not exhaustive.
In the embodiment of the present invention, the first unit L231 and the second unit L232 are configured to include at least two second light emitting units L0 arranged along the first direction X or the second direction Y, so that the space of the display panel can be reasonably utilized, the number of the light emitting elements P2 in the first sub-display area a21 and the second sub-display area a22 can be increased, the aperture ratio of the second sub-display area a2 can be increased, the current density of the second light emitting elements P2 can be reduced, and the service life of the display panel can be prolonged.
In some alternative embodiments, the number of the second light-emitting units L0 and the arrangement manner of the second light-emitting units L0 included in the first, second and third sub-light-emitting repeat units L21, L22 and L23 may be the same (as shown in fig. 20, fig. 20 is still another structural diagram of a region Q2 in fig. 6), or may not be the same (as shown in fig. 21, fig. 21 is still another structural diagram of a region Q2 in fig. 6). And the plurality of third sub light emitting repeating units L23 may also be disposed to include different numbers or arrangements of the second light emitting units L0. The second light emitting units L0 located at the junctions of the first and second sub-display areas a21 and a22 may both constitute the third sub-light emitting repeating unit L23 (as shown in fig. 20), or only a portion of the second light emitting units L0 may both constitute the third sub-light emitting repeating unit L23 (as shown in fig. 21). It can be understood that the first sub-light-emitting repeating unit L21, the second sub-light-emitting repeating unit L22, and the third sub-light-emitting repeating unit L23 are designed differently, so that the screen-splitting phenomenon of the first sub-display area a21 and the second sub-display area a22 during display can be further weakened, and the display effect is improved.
In some alternative embodiments, referring to fig. 19-22, fig. 22 is a schematic view of yet another configuration of region Q2 of fig. 6. The second light-emitting unit L0 includes three different color second sub light-emitting elements P2, which are a first color sub light-emitting element P21, a second color sub light-emitting element P22, and a third color sub light-emitting element P23. In the same third sub light emitting repeating unit L23, all the first-color sub light emitting elements P21 are electrically connected to the same third sub pixel circuit C23; all the second-color sub light emitting elements P22 are electrically connected to the same third sub-pixel circuit C23, or the second-color sub light emitting elements P22 are electrically connected to the three sub-pixel circuits C23 in a one-to-one correspondence; all the third-color sub light emitting elements P23 are electrically connected to the same third sub pixel circuit C23, or the third-color sub light emitting elements P23 are electrically connected to the third sub pixel circuits C23 in a one-to-one correspondence.
Referring to fig. 19 to 21, in the same third sub-emission repeating unit L23, all the first-color sub-emission elements P21 are electrically connected to the same third sub-pixel circuit C23, all the second-color sub-emission elements P22 are electrically connected to the same third sub-pixel circuit C23, and all the third-color sub-emission elements P23 are electrically connected to the same third sub-pixel circuit C23. This design can minimize the number of third sub-pixel circuits C23 required for the same third sub-emission repeating unit L23, thereby increasing the number of second sub-emission elements P2 in the second display area a2 and increasing the brightness of the second display area a2 without increasing the total number of pixel circuits (the sum of the numbers of first sub-pixel circuits C21, second sub-pixel circuits C22, and third sub-pixel circuits C23) in the first sub-display area a21, compared with the prior art. Moreover, when one first sub-pixel circuit C21, one second sub-pixel circuit C22 or one third sub-pixel circuit C23 is correspondingly connected with m2(m2 is more than or equal to 4) second sub-light-emitting elements P2, compared with the prior art, the total number of pixel circuits in the first sub-display area A21 can be reduced, and therefore the first sub-display area A21 has higher transmittance.
Referring to fig. 22, in the same third sub-light emitting repeating unit L23, all the first color sub-light emitting elements P21 are electrically connected to the same third sub-pixel circuit C23, the second color sub-light emitting elements P22 are electrically connected to the third sub-pixel circuits C23 in a one-to-one correspondence, and all the third color sub-light emitting elements P23 are electrically connected to the same third sub-pixel circuit C23. In this design, one third sub-pixel circuit C23 is electrically connected to one second color sub-light emitting device P22, so that the number of the second color sub-light emitting devices P22 at the junction between the first sub-display area a21 and the second sub-display area a22 can be increased, and when displaying a second color pure color image, the PPI of the second color sub-light emitting device P22 can be increased, thereby weakening the brightness difference at the junction between the first sub-display area a21 and the second sub-display area a22, improving the split screen problem, and improving the display effect.
It is understood that in some alternative embodiments, one third sub-pixel circuit C23 may be electrically connected to one third color sub-light emitting element P23, so as to improve the resolution of the display panel corresponding to the second color sub-light emitting element P23 and improve the display effect when performing the third color pure color picture display.
In some alternative embodiments, referring to fig. 23 and 24, fig. 23 is a schematic view of a partial structure provided by the embodiment of the present invention, and fig. 24 is a schematic view of a cross-sectional structure taken along EE' direction in fig. 23. The second sub-light emitting element P2 includes a first electrode 131, a light emitting structure 132 and a second electrode 133, in the same third sub-light emitting repeating unit L23, the first electrode 131 of the adjacent second sub-light emitting element P2 electrically connected to the same third sub-pixel circuit C23 and located in the second sub-display area a22 is electrically connected to the third connecting line W3, the first electrode 131 of the adjacent second sub-light emitting element P2 electrically connected to the same third sub-pixel circuit C23 and located in the first sub-display area a21 is electrically connected to the fourth connecting line W4, the third connecting line W3 is a transparent trace, and the fourth connecting line W4 is a metal trace.
It is understood that the film structure of the display panel may be similar to the film structures shown in fig. 10, 11, 14, and 16, and thus, the description thereof is omitted.
In the embodiment of the present invention, the third connection line W3 is a transparent trace and can reuse the first conductive layer 1311(ITO) of the first electrode 131 (anode), and the fourth connection line W4 can reuse the second metal layer 115, so as to reduce the number of films and the number of masks, reduce the difficulty of the manufacturing process of the display panel, improve the manufacturing efficiency of the display panel, and achieve the lightness and thinness of the display panel.
It can be understood that, in order to further improve the light transmittance of the second sub-display area a22, a connection line between the first electrodes 131 of two adjacent second sub-light emitting elements P2 at the junction of the first sub-display area a21 and the second sub-display area a22 may be made of a transparent material at the portion of the second sub-display area a22, and a metal material at the portion of the first sub-display area a21, so that the light transmittance and the signal transmission performance of the second sub-display area a22 can be considered, and the normal operation and the normal display of the photosensitive elements in this area can be realized.
It can be understood that, in order to design the first connecting line W1 and the fourth connecting line W4 into curves (arcs or wavy lines) and the like, the straight-edge boundary (or straight-edge gap) of the second sub-display area a22 is avoided, and the diffraction degree of the second sub-display area a22 can be greatly reduced, so that the influence of the diffraction phenomenon on the picture shot by the camera is weakened, and therefore, the definition of the shot picture is improved, and the picture quality is improved.
In some alternative embodiments, referring to fig. 25, fig. 25 is a schematic view of a partial structure provided in an embodiment of the present invention. The connecting lines W belonging to the second light-emitting repeating unit L2 partially overlap each other in a direction perpendicular to the light-emitting surface of the display panel, and in order to avoid short circuit, a part of the connecting lines W may be disposed on the conductive layer 30 and a part of the connecting lines W may be disposed on the conductive layer 40. And simultaneously, the number of films and the number of corresponding masks can be reduced, the difficulty of the manufacturing process of the display panel is reduced, the manufacturing efficiency of the display panel is improved, and meanwhile, the display panel is thinned.
It should be noted that, in the embodiments of the display panel provided by the present invention, the technical features can be freely combined without conflict, and the present invention is not exhaustive.
An embodiment of the present invention further provides a display device, as shown in fig. 26, fig. 26 is a schematic structural diagram of the display device provided in the embodiment of the present invention, and the display device includes the display panel. The specific structure of the display panel has been described in detail in the above embodiments, and is not described herein again. Of course, the display device shown in fig. 19 is only a schematic illustration, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
The display panel and the display device provided by the embodiment of the invention are described in detail, and the principle and the embodiment of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (12)

1. A display panel, comprising:
a first display area and a second display area, the first display area at least partially surrounding the second display area; the second display area comprises a first sub-display area and a second sub-display area, the first sub-display area at least partially surrounds the second sub-display area, and the light transmittance of the second sub-display area is greater than that of the first display area;
the first pixel circuit is positioned in the first display area, and the second pixel circuit is positioned in the first sub-display area;
a first light emitting repeating unit located in the first display region and including at least one first light emitting unit including at least three first sub light emitting elements of different colors;
a second light emitting repeating unit located in the second display region and including at least two second light emitting units including at least three second sub light emitting elements of different colors;
in the same first light-emitting repeating unit, the first sub light-emitting elements are electrically connected with the first pixel circuits in a one-to-one correspondence manner; in the same second light-emitting repeating unit, all the second sub-light-emitting elements of at least one same color are electrically connected with the same second pixel circuit;
the second pixel circuit comprises a first sub-pixel circuit and a second sub-pixel circuit, and the first sub-pixel circuit and the second sub-pixel circuit are both positioned in the first sub-display area;
the second light-emitting repeating unit comprises a first sub-light-emitting repeating unit and a second sub-light-emitting repeating unit, the first sub-light-emitting repeating unit is located in the first sub-display area, the second sub-light-emitting repeating unit is located in the second sub-display area, and the first sub-light-emitting repeating unit and the second sub-light-emitting repeating unit both comprise at least two second light-emitting units;
in the same first sub-light-emitting repeating unit, all the second sub-light-emitting elements of at least one same color are electrically connected with the same first sub-pixel circuit; in the same second sub-light-emitting repeating unit, all the second sub-light-emitting elements of at least one same color are electrically connected with the same second sub-pixel circuit;
the second light-emitting unit comprises three second sub light-emitting elements with different colors, namely a first color sub light-emitting element, a second color sub light-emitting element and a third color sub light-emitting element;
in the same first sub-light-emitting repeating unit, all the first color sub-light-emitting elements are electrically connected with the same first sub-pixel circuit; the second color sub-light-emitting elements are electrically connected with the first second sub-pixel circuits in a one-to-one correspondence manner; all the third color sub-light-emitting elements are electrically connected with the same first third sub-pixel circuit, or the third color sub-light-emitting elements are electrically connected with the first third sub-pixel circuits in a one-to-one correspondence manner; or, in the same first sub-light emitting repeating unit, all the first color sub-light emitting elements are electrically connected to the same first sub-pixel circuit; all the second color sub-light-emitting elements are electrically connected with the same first second sub-pixel circuit, or the second color sub-light-emitting elements are electrically connected with the first second sub-pixel circuits in a one-to-one correspondence manner; the third color sub-light emitting elements are electrically connected with the first sub-pixel circuits in a one-to-one correspondence manner.
2. A display panel, comprising:
a first display area and a second display area, the first display area at least partially surrounding the second display area; the second display area comprises a first sub-display area and a second sub-display area, the first sub-display area at least partially surrounds the second sub-display area, and the light transmittance of the second sub-display area is greater than that of the first display area;
the first pixel circuit is positioned in the first display area, and the second pixel circuit is positioned in the first sub-display area;
a first light emitting repeating unit located in the first display region and including at least one first light emitting unit including at least three first sub light emitting elements of different colors;
a second light emitting repeating unit located in the second display region and including at least two second light emitting units including at least three second sub light emitting elements of different colors;
in the same first light-emitting repeating unit, the first sub light-emitting elements are electrically connected with the first pixel circuits in a one-to-one correspondence manner; in the same second light-emitting repeating unit, all the second sub-light-emitting elements of at least one same color are electrically connected with the same second pixel circuit;
the second pixel circuit comprises a first sub-pixel circuit and a second sub-pixel circuit, and the first sub-pixel circuit and the second sub-pixel circuit are both positioned in the first sub-display area;
the second light-emitting repeating unit comprises a first sub-light-emitting repeating unit and a second sub-light-emitting repeating unit, the first sub-light-emitting repeating unit is located in the first sub-display area, the second sub-light-emitting repeating unit is located in the second sub-display area, and the first sub-light-emitting repeating unit and the second sub-light-emitting repeating unit both comprise at least two second light-emitting units;
in the same first sub-light-emitting repeating unit, all the second sub-light-emitting elements of at least one same color are electrically connected with the same first sub-pixel circuit; in the same second sub-light-emitting repeating unit, all the second sub-light-emitting elements of at least one same color are electrically connected with the same second sub-pixel circuit;
the second light-emitting unit comprises three second sub light-emitting elements with different colors, namely a first color sub light-emitting element, a second color sub light-emitting element and a third color sub light-emitting element;
in the same second sub-light-emitting repeating unit, all the first color sub-light-emitting elements are electrically connected with the same second sub-pixel circuit; the second color sub-light emitting elements are electrically connected with the second diethyl sub-pixel circuits in a one-to-one correspondence manner; all the third color sub-light emitting elements are electrically connected with the same second sub-pixel circuit, or the third color sub-light emitting elements are electrically connected with the second sub-pixel circuits in a one-to-one correspondence manner; or, in the same second sub-light emitting repeating unit, all the first color sub-light emitting elements are electrically connected to the same second sub-pixel circuit; all the second color sub-light-emitting elements are electrically connected with the same second sub-pixel circuit, or the second color sub-light-emitting elements are electrically connected with the second sub-pixel circuits in a one-to-one correspondence manner; and the third color sub-light emitting elements are electrically connected with the second sub-pixel circuits in a one-to-one correspondence manner.
3. The display panel according to claim 1 or 2,
the first sub-display area and the second sub-display area are arranged along a first direction;
the first sub-emission repeating unit includes at least two of the second emission units arranged in the first direction or the second direction;
the second sub-emission repeating unit includes at least two second emission units arranged in the first direction or the second direction, and the first direction and the second direction cross each other.
4. The display panel according to claim 1 or 2,
the first color sub-light emitting element is a red sub-light emitting element, the second color sub-light emitting element is a green sub-light emitting element, and the third color sub-light emitting element is a blue sub-light emitting element.
5. The display panel according to claim 1 or 2,
the second sub-light-emitting element comprises a first electrode, a light-emitting structure and a second electrode, the first electrode of the adjacent second sub-light-emitting element electrically connected with the same second sub-pixel circuit is electrically connected through a first connecting wire, and the first connecting wire is a transparent wiring.
6. The display panel according to claim 5,
the first electrodes of the adjacent second sub-light-emitting elements electrically connected with the same first sub-pixel circuit are electrically connected through a second connecting wire, and the second connecting wire is a metal wiring.
7. The display panel according to claim 1 or 2,
in a direction perpendicular to the light emitting surface of the display panel, the second sub-pixel circuit and the second sub-light emitting element are at least partially overlapped.
8. A display panel, comprising:
a first display area and a second display area, the first display area at least partially surrounding the second display area; the second display area comprises a first sub-display area and a second sub-display area, the first sub-display area at least partially surrounds the second sub-display area, and the light transmittance of the second sub-display area is greater than that of the first display area;
the first pixel circuit is positioned in the first display area, and the second pixel circuit is positioned in the first sub-display area;
a first light emitting repeating unit located in the first display region and including at least one first light emitting unit including at least three first sub light emitting elements of different colors;
a second light emitting repeating unit located in the second display region and including at least two second light emitting units including at least three second sub light emitting elements of different colors;
in the same first light-emitting repeating unit, the first sub light-emitting elements are electrically connected with the first pixel circuits in a one-to-one correspondence manner; in the same second light-emitting repeating unit, all the second sub-light-emitting elements of at least one same color are electrically connected with the same second pixel circuit;
the second pixel circuit further comprises a third sub-pixel circuit, and the third sub-pixel circuit is positioned in the first sub-display area;
the second light-emitting repeating unit further comprises a third sub-light-emitting repeating unit, the third sub-light-emitting repeating unit comprises a first unit and a second unit, the first unit is located in the first sub-display area, the second unit is located in the second sub-display area, the first unit comprises at least one second light-emitting unit, and the second unit comprises at least one second light-emitting unit;
in the same third sub-emission repeating unit, all the second sub-emission elements of at least one same color are electrically connected to the same third sub-pixel circuit.
9. The display panel according to claim 8,
the first unit and the second unit of the same third sub-emission repeating unit are arranged in a first direction;
the first unit includes at least two of the second light emitting units arranged in a second direction, and the second unit includes at least two of the second light emitting units arranged in the second direction, the first direction and the second direction crossing each other.
10. The display panel according to claim 8,
the second light-emitting unit comprises three second sub light-emitting elements with different colors, namely a first color sub light-emitting element, a second color sub light-emitting element and a third color sub light-emitting element;
in the same third sub-light-emitting repeating unit, all the first color sub-light-emitting elements are electrically connected with the same third sub-pixel circuit;
all the second color sub-light emitting elements are electrically connected with the same third sub-pixel circuit, or the second color sub-light emitting elements are electrically connected with the third sub-pixel circuits in a one-to-one correspondence manner;
and all the third color sub-light-emitting elements are electrically connected with the same third sub-pixel circuit, or the third color sub-light-emitting elements are electrically connected with the third sub-pixel circuits in a one-to-one correspondence manner.
11. The display panel according to claim 8,
the second sub-light-emitting element comprises a first electrode, a light-emitting structure and a second electrode;
in the same third sub-light-emitting repeating unit, the first electrodes of the adjacent second sub-light-emitting elements, which are electrically connected with the same third sub-pixel circuit and are located in the second sub-display area, are electrically connected through a third connecting wire, the first electrodes of the adjacent second sub-light-emitting elements, which are electrically connected with the same third sub-pixel circuit and are located in the first sub-display area, are electrically connected through a fourth connecting wire, the third connecting wire is a transparent wire, and the fourth connecting wire is a metal wire.
12. A display device characterized by comprising the display panel according to any one of claims 1 to 11.
CN202010885970.XA 2020-08-28 2020-08-28 Display panel and display device Active CN112038373B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202210851003.0A CN115224091A (en) 2020-08-28 2020-08-28 Display panel and display device
CN202010885970.XA CN112038373B (en) 2020-08-28 2020-08-28 Display panel and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010885970.XA CN112038373B (en) 2020-08-28 2020-08-28 Display panel and display device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN202210851003.0A Division CN115224091A (en) 2020-08-28 2020-08-28 Display panel and display device

Publications (2)

Publication Number Publication Date
CN112038373A CN112038373A (en) 2020-12-04
CN112038373B true CN112038373B (en) 2022-08-23

Family

ID=73586194

Family Applications (2)

Application Number Title Priority Date Filing Date
CN202010885970.XA Active CN112038373B (en) 2020-08-28 2020-08-28 Display panel and display device
CN202210851003.0A Pending CN115224091A (en) 2020-08-28 2020-08-28 Display panel and display device

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN202210851003.0A Pending CN115224091A (en) 2020-08-28 2020-08-28 Display panel and display device

Country Status (1)

Country Link
CN (2) CN112038373B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112271203A (en) * 2020-10-29 2021-01-26 京东方科技集团股份有限公司 Display panel and display device
CN112103329B (en) * 2020-11-05 2021-02-02 武汉华星光电半导体显示技术有限公司 Display panel and display device
CN113178163B (en) * 2021-04-27 2023-01-10 武汉天马微电子有限公司 Display panel and display device
CN113241031B (en) * 2021-05-08 2022-06-14 合肥维信诺科技有限公司 Display panel and display device
CN113327543B (en) * 2021-05-28 2023-06-20 京东方科技集团股份有限公司 Display substrate, driving method thereof and display device
CN116897430A (en) * 2022-01-29 2023-10-17 京东方科技集团股份有限公司 Array substrate, display panel and display device
WO2023142116A1 (en) * 2022-01-30 2023-08-03 京东方科技集团股份有限公司 Display panel and manufacturing method therefor, and display device
WO2023230783A1 (en) * 2022-05-30 2023-12-07 京东方科技集团股份有限公司 Display substrate and display device
CN115132128A (en) * 2022-06-30 2022-09-30 湖北长江新型显示产业创新中心有限公司 Display panel and display device
CN115425053A (en) * 2022-09-13 2022-12-02 京东方科技集团股份有限公司 Display substrate and display device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107610635B (en) * 2017-10-27 2021-03-05 武汉天马微电子有限公司 Display panel and electronic equipment
KR20190130094A (en) * 2018-05-10 2019-11-21 삼성디스플레이 주식회사 Display apparatus and Manufacturing method thereof
US10985231B2 (en) * 2018-08-10 2021-04-20 Au Optronics Corporation Display device
CN110767139B (en) * 2019-03-29 2020-12-11 昆山国显光电有限公司 Display substrate, display panel and display device
CN110767835B (en) * 2019-03-29 2021-01-26 昆山国显光电有限公司 Transparent display panel, display screen, display device and mask plate
CN110265455B (en) * 2019-06-25 2020-11-24 武汉华星光电半导体显示技术有限公司 Display panel and display device
CN210052743U (en) * 2019-06-28 2020-02-11 昆山国显光电有限公司 Display substrate, display panel and display device
CN210200763U (en) * 2019-07-31 2020-03-27 昆山国显光电有限公司 Light-transmitting display panel, display panel and display device
CN210120138U (en) * 2019-08-30 2020-02-28 昆山国显光电有限公司 Display panel and display device
CN210516181U (en) * 2019-09-29 2020-05-12 昆山国显光电有限公司 Transparent display substrate and display device
CN110783384B (en) * 2019-10-12 2021-01-22 昆山国显光电有限公司 Display panel and display device
CN110890026B (en) * 2019-12-05 2021-10-15 昆山国显光电有限公司 Display panel and display device

Also Published As

Publication number Publication date
CN112038373A (en) 2020-12-04
CN115224091A (en) 2022-10-21

Similar Documents

Publication Publication Date Title
CN112038373B (en) Display panel and display device
US11322567B2 (en) Display panel, manufacture method thereof and display apparatus
CN109801950B (en) Display panel, display device and manufacturing method of display panel
US10756136B1 (en) Display panel and display device
JP7329685B2 (en) display panel
WO2021232984A1 (en) Display panel, driving method and display device
US9673260B2 (en) Organic electroluminescent display device with an upper electrode in contact with a lower electrode
US10879320B2 (en) Organic light-emitting display panel and display apparatus
US7198515B2 (en) Electro-optical apparatus, matrix substrate, and electronic unit
CN110783386B (en) Display panel and display device
US20230371324A1 (en) Display panel and display device
US20220336538A1 (en) Display panel and display apparatus
US20220093702A1 (en) Display devices and display panels
CN112714955B (en) Display substrate, display panel and preparation method of display substrate
CN114141851A (en) Display panel, display screen and electronic equipment
JP2022021644A (en) Display
US11276740B2 (en) Semiconductor device and display device
CN114830220A (en) Display panel and display device
CN112864217A (en) Display panel and electronic device
CN108321305B (en) OLED display panel and display device
CN113078201A (en) Display panel and display device
JP2006317740A (en) Light emitting device, driving method thereof, manufacturing method thereof, and electronic device
KR102309842B1 (en) Organic light emitting diode display and manufactucring method of the same
WO2022262047A1 (en) Touch display panel
KR20220084469A (en) Display panel and display device including the same

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
GR01 Patent grant
GR01 Patent grant